| 1 | | | |
|
| – | | | |
|
| 2 | | | Metaventrite with two parallel lateral striae, the outer variably complete (Figs 49H, 50B); pronotum with coarse punctures sparser across central part of disk (Figs 49E, 50A); widely distributed in SE Asia outside of Japan | | | 3 |
| |
|
| – | | | Metaventrite with single lateral stria; pronotum coarsely punctate across entire disk; Japan | | | Baconia chujoi (Cooman) |
| |
|
| 3 | | | |
|
| – | | | Body nonmetallic, rufotestaceus to piceous | | | 5 |
| |
|
| 4 | | | Frontal stria absent from central part of frons; body more parallel-sided (Fig. 49E) | | | Baconia reposita sp. n. |
| |
|
| – | | | Frontal stria complete; body broad and subdepressed (Fig. 73C) | | | Baconia glauca (Marseul) |
| |
|
| 5 | | | Prosternal carinal striae united around prosternal midpoint (Fig. 49H) | | | 6 |
| |
|
| – | | | Prosternal carinal striae separate throughout lengths | | | 7 |
| |
|
| 6 | | | Inner lateral metaventral stria straight to apex; 1st abdominal ventrite with 2 lateral striae | | | Baconia kubani sp. n. |
| |
|
| – | | | Inner lateral metaventral stria curved strongly mediad posteriorly (Fig. 50E); 1st abdominal ventrite with single lateral stria | | | Baconia adebratti sp. n. |
| |
|
| 7 | | | Mesometaventral stria strongly arched forward, interrupting marginal mesoventral stria at middle, non-crenulate (Fig. 50G); mainland SE Asia | | | 8 |
| |
|
| – | | | Mesometaventral stria not strongly arched forward, crenulate; Indomalayan region | | | 9 |
| |
|
| 8 | | | |
|
| – | | | |
|
| 9 | | | Marginal mesoventral stria complete at middle; Indonesia: Sulawesi and Malaysia: Sabah | | | Baconia wallacea sp. n. |
| |
|
| – | | | Marginal mesoventral stria interrupted at middle; Malaysia: Sabah | | | Baconia bigemina sp. n. |
| |
|
| 10 | | | Lateral mesotibial margin with >5 marginal teeth; metatibia with 2 marginal spines; body elongate, parallel-sided, moderately flattened (Fig. 69A) | | | Baconia cavifrons (Lewis) |
| |
|
| – | | | Lateral mesotibial margin with no more than 3 marginal spines; metatibia lacking marginal spines | | | 11 |
| |
|
| 11 | | | |
|
| – | | | Pygidium lacking trichomes | | | . 12 |
| |
|
| 12 | | | Body strongly flattened; sutural, and usually 5th elytral striae completely absent | | | 13 (Baconia loricata group, in part) |
| |
|
| – | | | Body flattened or not; at least fragments of sutural stria present; 5th elytral stria present or not | | | 20 |
| |
|
| 13 | | | Propygidium with complete stria along basal margin (Fig. 5E) | | | 14 |
| |
|
| – | | | Propygidium lacking basal marginal stria | | | 18 |
| |
|
| 14 | | | |
|
| – | | | Body not metallic, entirely rufotestaceus (Fig. 3C) | | | Baconia patula Lewis |
| |
|
| 15 | | | Fifth elytral stria present | | | 16 |
| |
|
| – | | | Fifth elytral stria absent | | | 17 |
| |
|
| 16 | | | Frontal stria present (though interrupted) across middle; 4th dorsal stria strongly abbreviated from base (Fig. 3E) | | | Baconia gounellei (Marseul) |
| |
|
| – | | | Frontal stria absent across middle, labrum very short, rounded; 4th dorsal stria more or less complete | | | Baconia nebulosa sp. n. |
| |
|
| 17 | | | |
|
| – | | | |
|
| 18 | | | |
|
| – | | | |
|
| 19 | | | Larger (>4mm), broader, flatter species (Fig. 9A-B); prosternal carinal striae separated by about the width of profemur, free basally; sides of frontal stria present along inner edge of eye | | | Baconia disciformissp. n. |
| |
|
| – | | | Smaller species (~3mm) (Fig. 5A); prosternal carinal striae separated by less than width of profemur, united basally; frontal stria completely absent | | | Baconia jubaris (Lewis) |
| |
|
| 20 | | | Protibia narrow, parallel-sided, with apical and sometimes basal marginal teeth, but rest of margin lacking teeth (Fig. 54F) | | | 21 (Baconia gibbifer group) |
| |
|
| – | | | Protibia wider, margin with at least one distinct tooth along middle portion of margin | | | 26 |
| |
|
| 21 | | | Central portion of mesometaventral stria absent (Fig. 54C); lateral striae of 1st abdominal ventrite curving mediad along anterior margin of ventrite, occasionally meeting at midline | | | Baconia gibbifer sp. n. |
| |
|
| – | | | Central portion of mesometaventral stria present; lateral striae of abdominal ventrite 1 not curving mediad along anterior margin of ventrite | | | 22 |
| |
|
| 22 | | | Prosternal keel narrowed anterad (Fig. 54G), becoming subcarinate in anterior one-fourth | | | 23 |
| |
|
| – | | | Prosternal keel more or less evenly convex throughout length (Fig. 54H) | | | 24 |
| |
|
| 23 | | | Short anterior fragment of 5th elytral stria present; body more nearly parallel-sided (Fig. 56A), width at elytral apices about two-thirds humeral width | | | Baconia tenuipes sp. n. |
| |
|
| – | | | Fifth elytral stria absent; body strongly narrowed posterad (Fig. 54G), width at elytral apices little more than half humeral width | | | Baconia piluliformis sp. n. |
| |
|
| 24 | | | Elytral striae abbreviated, none extending into posterior half of elytra; body strongly convex, prosternal lobe densely punctate at sides (Fig. 54H) | | | Baconia maquipucunae sp. n. |
| |
|
| – | | | At least 2nd elytral stria extending into posterior half of elytra; body subdepressed; prosternal lobe not densely punctate at sides | | | 25 |
| |
|
| 25 | | | Basal fragment of 4th elytral stria very short, not extending posterad past basal one-fourth; prescutellar area of pronotal disk impunctate (Fig. 56C); epistoma often with small median tubercle (Fig. 56B); Central America into northwestern South America | | | Baconia tuberculifer sp. n. |
| |
|
| – | | | Basal fragment of 4th elytral stria extending to elytral midpoint (Fig. 56D); prescutellar area of pronotal disk with a few coarse punctures; epistoma lacking median tubercle; South America | | | Baconia globosa sp. n. |
| |
|
| 26 | | | Body small, elongate and parallel-sided to strongly cylindrical (e.g. Figs 30, 52); body color rufotestaceus to metallic; 5th and sutural striae nearly or fully meeting in narrow anterior arch | | | 27 (Baconia cylindrica & ruficauda groups, in part) |
| |
|
| – | | | Body larger, rarely subcylindrical; body color varied; 5th and sutural striae not joined in anterior arch (4th and sutural may be) | | | 30 |
| |
|
| 27 | | | Most of dorsum metallic, with rufescent pygidia (Fig. 30A); base of 5th dorsal stria not meeting sutural stria | | | Baconia ruficauda sp. n. |
| |
|
| – | | | Entire dorsum uniformly rufotestaceus; bases of 5th dorsal stria and sutural stria united | | | 28 |
| |
|
| 28 | | | Anterior margin of frons produced as blunt, transverse ridge; epistoma concave beneath; 4th dorsal stria complete | | | Baconia teredina sp. n. |
| |
|
| – | | | Frons and epistoma more or less coplanar, anterior margin of frons not produced; 4th dorsal stria frequently interrupted or obsolete | | | 29 |
| |
|
| 29 | | | |
|
| – | | | Body smaller (~1.3mm); 4th elytral stria present, but may be broadly interrupted; South America | | | Baconia cylindrica sp. n. |
| |
|
| 30 | | | Body small (<1.8mm), elongate, subquadrate, subdepressed (Figs 32A-D, E, G, 35C); body color rufescent, not metallic, not piceous; 4th dorsal stria meeting sutural stria at subangulate anterior arch | | | 31 (Baconia angusta group) |
| |
|
| – | | | Body size varied, but typically larger; body color darker, piceous or metallic; elytral striae varied, but 4th stria rarely joined to sutural stria | | | 39 |
| |
|
| 31 | | | |
|
| – | | | Frons more or less flat, not subcarinate over antennal bases | | | 32 |
| |
|
| 32 | | | Dorsum distinctly bicolored, with pronotum darker than rufescent elytra (Fig. 35C); pronotum with coarse punctures sparsely scattered over most of disk, with only very narrow median band impunctate | | | Baconia rubripennis sp. n. |
| |
|
| – | | | Dorsum unicolored; pronotum with coarse punctures, if present, limited to sides, median impunctate band distinctly broader, nearly as wide or wider than head | | | 33 |
| |
|
| 33 | | | Mesofemur with dentate process at posteroapical corner (Fig. 35B) | | | Baconia dentipes sp. n. |
| |
|
| – | | | Mesofemur at most weakly produced at posteroapical corner | | | 34 |
| |
|
| 34 | | | Aedeagus very short and broad, tegmen no longer than twice maximum width (Figs 33E, K); 8th sternite with conspicuous fringe of long setae | | | 35 |
| |
|
| – | | | Aedeagus longer, tegmen length generally 3 or more times maximum width; setae of 8th sternite much less conspicuous, may be absent | | | 36 |
| |
|
| 35 | | | Basal piece of aedeagus about two-thirds as long as tegmen (Fig. 33E); spiculum gastrale with digitiform, laterally directed apical processes (Fig. 33D) | | | Baconia angusta Schmidt |
| |
|
| – | | | Basal piece of aedeagus shorter, no more than half tegmen length (Fig. 33K); spiculum gastrale with fine, setiform apical processes (Fig. 33J) | | | Baconia incognita sp. n. |
| |
|
| 36 | | | Spiculum gastrale with apical emargination relatively shallow, less than half total length of segment (Figs 36E-F) | | | 37 |
| |
|
| – | | | Spiculum gastrale with apical emargination relatively deep, more than half total length of segment (Fig. 33N) | | | 38 |
| |
|
| 37 | | | Apex of 9th tergite appearing truncate (Fig. 37C); apex of aedeagus narrower in dorsal view, less strongly curved ventrad (Figs 37E-F) | | | Baconia lunatifrons sp. n. |
| |
|
| – | | | Apex of 9th tergite rounded (Fig. 36C); apex of aedeagus more evenly rounded in dorsal view, strongly curved ventrad (Figs 36I-J) | | | Baconia subtilis sp. n. |
| |
|
| 38 | | | Basal piece of aedeagus long, meeting tegmen at a nearly right angle (Figs 33O-P); tegmen with little ventral curvature | | | Baconia guartela sp. n. |
| |
|
| – | | | Basal piece of aedeagus short, in line with tegmen; tegmen with significant ventral curvature (Figs 34M-N) | | | Baconia cavei sp. n. |
| |
|
| 39 | | | Body elongate, parallel-sided, subdepressed, coarsely punctate above (Figs 58, 60); pronotum uniformly punctate; frons strongly punctate, convex; all punctures (especially evident on pygidia) finely setigerous | | | 40 (Baconia insolita group) |
| |
|
| – | | | Body shape varied, may be coarsely punctate on various dorsal surfaces, but if so, punctures not setigerous; frons, if densely punctate, then variously depressed at middle | | | 43 |
| |
|
| 40 | | | Pronotum lacking any suggestion of lateral submarginal stria | | | 41 |
| |
|
| – | | | Pronotum with lateral submarginal stria composed of series of punctures | | | 42 |
| |
|
| 41 | | | |
|
| – | | | |
|
| 42 | | | Frontal and especially epistomal punctures coarse; male genitalia with S9 broad (Fig. 61E) | | | Baconia pilicauda sp. n. |
| |
|
| – | | | Frontal and especially epistomal punctures sparser and finer (Fig. 60B); male genitalia with S9 narrower (Fig. 61D) | | | Baconia tricolor sp. n. |
| |
|
| 43 | | | Body metallic above, may be blue, violet, green, or bronzy | | | 44 |
| |
|
| – | | | Body piceous or rufotestaceous, without any hint of metallic coloration | | | 93 |
| |
|
| 44 | | | Dorsal metallic coloration disrupted by rufescent elytral maculations | | | 45 |
| |
|
| – | | | Metallic coloration not interrupted by rufescent maculations | | | 46 |
| |
|
| 45 | | | Body larger (~3mm), rounded; red maculations reaching elytral base (Fig. 68A); epistoma produced to form broad transverse ridge above labrum (Fig. 68B) | | | Baconia katieae sp. n. |
| |
|
| – | | | Body smaller (<2mm), elongate; elytra metallic blue at base, red maculations more medial (Fig. 16A); epistoma not produced over labrum | | | Baconia maculata sp. n. |
| |
|
| 46 | | | Lateral submarginal pronotal stria present (in rare cases may have linear depression with series of punctures weakly coalesced into striae) | | | 47 |
| |
|
| – | | | Lateral submarginal pronotal stria absent; pronotal disk not depressed or elevated laterally | | | 63 |
| |
|
| 47 | | | Lateral pronotal bead elevated into distinct submarginal ridge, depressed along its inner edge (e.g. Figs 64A, E, G); body relatively large, elongate, sides subparallel; frons usually depressed at middle | | | 48 (Baconia famelica group, in part) |
| |
|
| – | | | Lateral pronotal bead not elevated into submarginal ridge, pronotal disk at most weakly impressed along submarginal stria; body smaller and/or rounder; frons varied | | | 51 |
| |
|
| 48 | | | Central part of frons very deeply impressed, separated from epistoma by distinct carina (Fig. 66C); dorsum conspicuously and more or less uniformly punctate (Fig. 66A); known only from Amazonas, Brazil | | | Baconia longipes sp. n. |
| |
|
| – | | | Central part of frons no more than shallowly impressed, separated from epistoma by only very fine carina or stria; body generally less conspicuously punctate, punctures distinctly finer on central part of pronotal and elytral disks; SE Brazil | | | 49 |
| |
|
| 49 | | | Pronotum and pygidia more or less non-metallic, elytra rather faintly metallic (Fig. 64E); apices of elytral disks obliquely punctatorugose | | | Baconia redemptor sp. n. |
| |
|
| – | | | Pronotum, elytra, and pygidia more or less uniformly metallic | | | 50 |
| |
|
| 50 | | | Frons and epistoma uniformly and continuously punctate (Fig. 64B); epistoma lacking apical transverse microsculpture; western Paraná, Brazil | | | Baconia famelica sp. n. |
| |
|
| – | | | Epistoma distinctly less punctate than frons; epistoma (and labrum) with conspicuous transverse microsculpture along sides and apical margin; eastern Paraná, Brazil | | | Baconia grossii sp. n. |
| |
|
| 51 | | | Distinct lateral submarginal pronotal stria present | | | 52 |
| |
|
| – | | | Lateral submarginal pronotal ‘stria’ comprising only a series of submarginal punctures | | | 61 |
| |
|
| 52 | | | Frontal stria complete | | | 53 |
| |
|
| – | | | Frontal stria interrupted, narrowly to broadly | | | 54 |
| |
|
| 53 | | | Propygidium of male depressed on either side of elevated, setose median ridge; pronotum black, with numerous fine lateral punctures (Fig. 62F); elytra metallic blue | | | Baconia azuripennis sp. n. |
| |
|
| – | | | Propygidium of male unmodified; pronotum darker blue than elytra, but not black (Fig. 73D); lateral pronotal punctures fewer, coarser | | | Baconia coerulea (Bickhardt) |
| |
|
| 54 | | | Frontal stria narrowly interrupted at middle; frons weakly depressed, with few punctures at middle | | | Baconia violacea (Marseul) |
| |
|
| – | | | Frontal stria broadly interrupted at middle; frontal shape varied | | | 55 |
| |
|
| 55 | | | Body large (~3mm), broadly rounded, bright metallic blue; frons depressed at middle | | | 56 |
| |
|
| – | | | Body smaller (<2.5mm), elongate, metallic coloration indistinct, barely evident without strong light or magnification; frons flat, frontal stria obsolete between antennal bases | | | 57 |
| |
|
| 56 | | | Frons with strong, well-defined oblique ridges descending onto epistoma, nearly meeting at middle (Fig. 71D) | | | Baconia carinifrons sp. n. |
| |
|
| – | | | Frons with only weakly defined ridges anterad median frontal depression | | | Baconia micans (Schmidt) |
| |
|
| 57 | | | Violet elytra contrasting distinctly with blue pronotum (Fig. 38C); Cuba | | | Baconia pulchella sp. n. |
| |
|
| – | | | Elytra not violet, though coloration of elytra and pronotum may differ slightly; North and Central America | | | 58 |
| |
|
| 58 | | | Coloration distinct; pronotum blue, elytra grading from blue-green anteriorly to blue posteriorly (Fig. 38A); elytral striae 1-5 more or less complete; USA | | | Baconia aeneomicans (Horn) |
| |
|
| – | | | Coloration very subtle; pronotum blue-black; elytral faintly blue to blue-green | | | 59 |
| |
|
| 59 | | | Marginal mesoventral stria obsolete from most of anterior mesoventral margin, displaced by mesometaventral stria; aedeagus slightly broader, rounded apically | | | Baconia quercea sp. n. |
| |
|
| – | | | Marginal mesoventral stria complete or nearly complete, mesometaventral stria not strongly arched anterad | | | 60 |
| |
|
| 60 | | | Anterior marginal pronotal stria interrupted above eyes; marginal mesoventral stria complete; dorsal punctation sparser (Fig. 40F); prosternum wider, striae subparallel to front; apices of S8 truncate (Fig. 41F) | | | Baconia submetallica sp. n. |
| |
|
| – | | | Anterior marginal pronotal stria continuous along anterior margin (Fig. 40B); marginal mesoventral stria interrupted at middle; dorsal punctation denser (Fig. 40A); prosternal striae weakly convergent to front; apices of S8 subacute (Fig. 39P) | | | Baconia irinae sp. n. |
| |
|
| 61 | | | Marginal mesoventral stria interrupted at middle; mesometaventral stria arched strongly forward (Fig. 16C) | | | Baconia deliberata sp. n. |
| |
|
| – | | | Marginal mesoventral stria complete (may be fine at middle); mesometaventral stria not so strongly arched forward | | | 62 |
| |
|
| 62 | | | Sutural stria present in posterior one-half elytral length (Fig. 11A); frontal stria narrowly interrupted for about one-half labrum width; known from Central America and extreme northwestern South America | | | Baconia godmani (Lewis) |
| |
|
| – | | | Sutural stria longer, present in posterior two-thirds elytral length (Fig. 16E); frontal stria generally more broadly interrupted, for about labrum width; known from western Amazonia | | | Baconia excelsa sp. n. |
| |
|
| 63 | | | Propygidium with transverse basal stria | | | 64 |
| |
|
| – | | | Propygidium without transverse basal stria | | | 74 |
| |
|
| 64 | | | Coloration bronzy, only faintly blue (Fig. 82C); head large, frons broad, with frontal stria obsolete between antennal bases (Fig. 82D); labrum large, faintly bilobed, with conspicuous transverse microsculpture | | | Baconia aenea sp. n. |
| |
|
| – | | | Coloration not appearing bronzy, blue to violet-blue | | | 65 |
| |
|
| 65 | | | Body large (>2.4mm), rounded, convex (Fig. 71E); male pygidium with elevated setose process in basal half (Fig. 71F); sutural stria complete, connected to 5th stria by basal arch | | | Baconia fulgida (Schmidt) |
| |
|
| – | | | Body size and shape varied; male pygidium unmodified; sutural stria abbreviated to obsolete, not connected to any other stria | | | 66 |
| |
|
| 66 | | | Metallic coloration conspicuous dorsally and ventrally (Figs 11G–H) | | | Baconia riehli (Marseul) |
| |
|
| – | | | Metallic coloration limited to dorsal surface | | | 67 |
| |
|
| 67 | | | Body strongly flattened | | | 68 |
| |
|
| – | | | Body moderately to distinctly convex | | | 73 |
| |
|
| 68 | | | At least elytral stria 4 strongly abbreviated from base | | | 69 |
| |
|
| – | | | Elytral striae 1-4 more or less complete | | | 70 |
| |
|
| 69 | | | Fourth and fifth elytral striae short but distinctly impressed, 5th stria longer than 4th (Fig. 6D); lateral pronotal punctures shallower and sparser; Panama | | | Baconia pernix sp. n. |
| |
|
| – | | | Fourth and fifth striae little more than apical series of punctures (Fig. 6C); lateral pronotal punctures deeper and denser; French Guiana | | | Baconia furtivasp. n. |
| |
|
| 70 | | | Frons irregularly and rather sparsely punctate; northern South America to Central America | | | 71 |
| |
|
| – | | | Frons coarsely and uniformly punctate (Fig. 5G); known only from southern Brazil | | | Baconia foliosoma sp. n. |
| |
|
| 71 | | | Sutural stria well impressed in posterior half; frons depressed at middle, with few coarse punctures between ends of interrupted frontal stria (e.g. Fig. 11F); pygidial punctures distinctly finer in apical half | | | Baconia isthmia sp. n. |
| |
|
| – | | | Sutural stria barely impressed near apex; frons more or less flat; pygidial punctures only barely finer toward apex | | | 72 |
| |
|
| 72 | | | Body strongly depressed (Figs 6A–B), propygidial width about 4×midline length; pygidial punctures fine | | | Baconia sapphirina sp. n. |
| |
|
| – | | | Body subdepressed (Figs 5C–D), propygidial width about 3×midline length; pygidial punctures coarser | | | Baconia festiva (Lewis) |
| |
|
| 73 | | | Mesoventrite (Fig. 22D) with doubled marginal and mesometaventral striae, the anterior three complete, the posterior-most interrupted at middle; French Guiana, northern Brazil | | | Baconia lewisi Mazur |
| |
|
| – | | | Mesoventrite (Fig. 11D) with single marginal and mesometaventral striae, the marginal mesoventral stria interrupted at middle; USA | | | Baconia venusta (LeConte) |
| |
|
| 74 | | | Mesometaventral stria present (at least as median fragments), in addition to marginal mesoventral stria (which may be interrupted at middle) | | | 80 |
| |
|
| – | | | Mesometaventral stria absent | | | 75 |
| |
|
| 75 | | | Fourth and 5th dorsal striae absent (Fig. 18G), sutural stria largely obsolete | | | Baconia jacinta sp. n. |
| |
|
| – | | | Fourth and/or sutural stria present and distinct | | | 76 |
| |
|
| 76 | | | |
|
| – | | | Sutural, and sometimes 5th striae, present | | | 77 |
| |
|
| 77 | | | Sutural stria complete, well impressed; elytra violet in color, contrasting with blue pronotum and pygidia (Fig. 21E) | | | Baconia illustris (Lewis) |
| |
|
| – | | | Sutural stria obsolete in basal one-fourth to one-half; elytra and pronotum concolorous, generally blue to blue-green, not violet | | | 78 |
| |
|
| 78 | | | |
|
| – | | | Fourth stria variably present in basal half only | | | 79 |
| |
|
| 79 | | | Frons and epistoma both depressed, each with few median punctures (Fig. 80B); frontal stria weakly interrupted between them | | | Baconia nayarita sp. n. |
| |
|
| – | | | Frons depressed, epistoma flat to slightly elevated relative to frons, both impunctate; frontal stria complete (Fig. 18D) | | | Baconia eximia (Lewis) |
| |
|
| 80 | | | Median portion of mesometaventral stria detached from sides, maybe be reduced or fragmented | | | 81 |
| |
|
| – | | | Median portion of mesometaventral stria connected to lateral metaventral stria at sides | | | 85 |
| |
|
| 81 | | | Elytral striae 1-5 distinct, present at elytral base | | | 82 |
| |
|
| – | | | At least 5th stria, usually also 4th, abbreviated to some degree from base | | | 83 |
| |
|
| 82 | | | Sutural stria more or less complete, inner subhumeral stria strongly abbreviated (Fig. 30B); frons convex, median portion of frontal stria absent | | | Baconia repens sp. n. |
| |
|
| – | | | Sutural stria abbreviated from base (Fig. 18E); inner subhumeral stria more or less complete; frons depressed at middle, median portion of frontal stria fragmented but present (Fig. 18F) | | | Baconia splendida sp. n. |
| |
|
| 83 | | | Inner subhumeral stria weak, interrupted at middle; mesometaventral stria well developed across middle two-thirds of mesoventral disk | | | 84 |
| |
|
| – | | | Inner subhumeral stria more or less complete; mesometaventral stria weak, fragmented, present only at middle of disk (Fig. 14C) | | | Baconia rossi sp. n. |
| |
|
| 84 | | | |
|
| – | | | |
|
| 85 | | | Elytral stria 5 complete to base, may be slightly abbreviated apically (Fig. 82E); frons flat, labrum strongly emarginate (Fig. 82F) | | | Baconia clemens sp. n. |
| |
|
| – | | | Elytral stria 5, if present, strongly abbreviated from base; frons at least slightly depressed at middle; labrum varied, but usually not more than weakly emarginate | | | 86 |
| |
|
| 86 | | | Sutural and 4th elytral striae connected by distinct basal arch (Fig. 21A) | | | Baconia prasina sp. n. |
| |
|
| – | | | 4th elytral stria may be arched toward suture, but not connected to sutural stria | | | 87 |
| |
|
| 87 | | | Marginal mesoventral stria interrupted; central portion of frontal stria complete (may be detached at sides), subangulate at middle (Fig. 77B) | | | Baconia angulifrons sp. n. |
| |
|
| – | | | Marginal mesoventral stria complete; central portion of frontal stria complete or interrupted at middle, but not subangulate at middle | | | 88 |
| |
|
| 88 | | | Dorsum and pygidium concolorous (blue, blue-green or violet); body moderately convex | | | 89 |
| |
|
| – | | | Pygidia black or testaceus, contrasting with dorsum; body subdepressed | | | 91 |
| |
|
| 89 | | | Sutural stria complete; body color contrasting with elytra violet (Fig. 16F), pronotum and pygidia blueish | | | Baconia violacea (Marseul) |
| |
|
| – | | | Sutural stria abbreviated basally; body more or less unicolorous, varied in color | | | 90 |
| |
|
| 90 | | | Body color blue (Fig. 18B); male S8 weakly widened apically (Fig. 19D) | | | Baconia dives (Marseul) |
| |
|
| – | | | Body color generally more violet (Fig. 18A); male S8 broadly widened apically (Fig. 19B) | | | Baconia varicolor (Marseul) |
| |
|
| 91 | | | Epistoma not markedly convex, depressed at middle; pygidia and venter black | | | 92 |
| |
|
| – | | | Epistoma transversely convex along apical margin, not depressed at middle; pygidia (Figs 77F-G) and venter testaceus | | | Baconia viridimicans (Schmidt) |
| |
|
| 92 | | | |
|
| – | | | Pronotum and elytra blue (Fig. 21D); known only from Costa Rica | | | Baconia opulenta sp. n. |
| |
|
| 93 | | | Lateral submarginal pronotal stria present | | | 94 |
| |
|
| – | | | Lateral submarginal pronotal stria absent | | | 111 |
| |
|
| 94 | | | Frons and epistoma divided by raised carina (Fig. 64H); frons, pronotum, and elytra conspicuously punctate (Fig. 64G); body large (>4mm) | | | Baconia fortis sp. n. |
| |
|
| – | | | Frons and epistoma not divided by raised carina; body with punctures much more restricted in distribution, predominantly impunctate | | | 95 |
| |
|
| 95 | | | Frons with central portion of frontal stria present, may be abbreviated; frons depressed at middle, or deflexed with respect to epistoma | | | 96 |
| |
|
| – | | | Central part of frontal stria absent; frons flat, rarely depressed at middle | | | 97 |
| |
|
| 96 | | | Elytra lacking 5th and sutural striae; body strongly convex (Fig. 73A); known only from Chile | | | Baconia chilense (Redtenbacher) |
| |
|
| – | | | Elytra with sutural stria present; body broadly rounded, subdepressed (Fig. 62A); known from southern Brazil, Paraguay | | | Baconia riouka (Marseul) |
| |
|
| 97 | | | Pronotum conspicuously, almost uniformly punctate (Fig. 38F); known only from south-central to southeastern USA | | | Baconia stephani sp. n. |
| |
|
| – | | | Pronotum punctate at sides only or entirely impunctate; neotropical | | | 98 |
| |
|
| 98 | | | Elytral 5th and sutural striae joined in basal arch (Fig. 84A); striae 1-4 nearly complete, only barely abbreviated apically | | | Baconia leivasi sp. n. |
| |
|
| – | | | Fifth and sutural striae not joined in basal arch; striae 2-4 usually distinctly abbreviated apically | | | 99 |
| |
|
| 99 | | | Fourth dorsal stria bent inward at basal one-third, curved mediad along basal elytral margin (e.g., Figs 40A, C); 5th and sutural striae rather distinctly converging basad; body generally piceous, sides rounded | | | 104 |
| |
|
| – | | | Fourth and 5th dorsal striae subparallel to sutural, bending only very weakly mediad at base; body rufescent to rufo-testaceus, generally parallel-sided | | | 100 |
| |
|
| 100 | | | Mesometaventral stria strongly arched anterad, displacing central portion of marginal mesoventral stria (e.g., Fig. 47C); prosternal striae more or less complete, separate throughout their lengths; body more or less unicolorous | | | 101 |
| |
|
| – | | | Marginal mesoventral stria complete, not displaced by mesometaventral stria; prosternal striae abbreviated anteriorly, united near prosternal midpoint; pronotum distinctly darker than rufescent elytra (Fig. 77C) | | | Baconia sanguinea sp. n. |
| |
|
| 101 | | | First abdominal ventrite with two lateral striae | | | 102 |
| |
|
| – | | | First abdominal ventrite with single lateral stria | | | 103 |
| |
|
| 102 | | | Body subdepressed, but not strongly flattened; prosternal carinal striae separated by less than width of profemur (Fig. 47C) | | | Baconia lescheni sp. n. |
| |
|
| – | | | Body rather strongly flattened; prosternum broad, the carinal striae separated by more than the width of profemur (Fig. 47F) | | | Baconia animata sp. n. |
| |
|
| 103 | | | Inner subhumeral elytral stria more or less complete; frons densely and uniformly punctate (Fig. 47D) | | | Baconia oblonga sp. n. |
| |
|
| – | | | Inner subhumeral elytral stria present at extreme base only; frons with dense punctures somewhat irregularly spaced | | | Baconia rufescens sp. n. |
| |
|
| 104 | | | First abdominal ventrite with at least a few distinct, coarse punctures across anterior part of disk (e.g., Figs 40B, 43F) | | | 106 |
| |
|
| – | | | First abdominal ventrite with no more than fine ground punctation on disk | | | 105 |
| |
|
| 105 | | | Fourth abdominal ventrite punctatorugose at center (e.g., Fig. 43F); marginal mesoventral stria interrupted for most of central one-third | | | Baconia castanea sp. n. |
| |
|
| – | | | Fourth abdominal ventrite with only sparse punctures at center (Fig. 40H); marginal mesoventral stria more broadly interrupted, with strial remnants only in extreme corners | | | Baconia diminua sp. n. |
| |
|
| 106 | | | Body larger (~2.5mm); frontal/epistomal disk distinctly prolonged, total midline length approximately equal to greatest width between eyes; first abdominal ventrite with dense punctures throughout basal one-half to two-thirds (Fig. 40D) | | | Baconia fornix sp. n. |
| |
|
| – | | | Body smaller (<2mm); frontal/epistomal disk not prolonged, midline length distinctly less than maximum interocular width; punctures of first abdominal ventrite generally sparser | | | 107 |
| |
|
| 107 | | | Anterior marginal pronotal stria interrupted behind eyes, ends recurved slightly | | | 108 |
| |
|
| – | | | Anterior marginal pronotal stria continuous along anterior margin | | | 111 |
| |
|
| 108 | | | Epistoma densely microsculptured along anterior margin (Fig. 43E) | | | Baconia mustax sp. n. |
| |
|
| – | | | Epistoma without microsculpture along anterior margin | | | 109 |
| |
|
| 109 | | | Protibial margin with distinct median and basal marginal teeth; Central America | | | Baconia submetallica sp. n. |
| |
|
| – | | | Protibial median and basal marginal teeth strongly reduced, margin more or less straight, with only very fine denticles produced beyond the marginal serrulation; South America | | | 110 |
| |
|
| 110 | | | Prosternum relatively narrow, carinal striae separated by less than width of profemur | | | Baconia plebeia sp. n. |
| |
|
| – | | | Prosternum relatively broad, carinal striae separated by more than width of profemur | | | Baconia slipinskii Mazur |
| |
|
| 111 | | | Body very small (<1.5mm); basal piece longer, about twice as long as wide (Fig. 42M) | | | Baconia aulaea sp. n. |
| |
|
| – | | | Body moderately small (~1.8-2mm); basal piece shorter, about 1.5× as long as wide (Fig. 42P) | | | Baconia punctiventer sp. n. |
| |
|
| 112 | | | Base of 4th elytral stria present, arched to sutural stria (to which it may or may not be connected; Fig. 24A) | | | 113 |
| |
|
| – | | | Base of 4th elytral stria absent | | | 116 |
| |
|
| 113 | | | Body rather strongly depressed; sutural elytral stria strongly reduced, not extending into basal half of elytron (Fig. 84C) | | | Baconia atricolor sp. n. |
| |
|
| – | | | Body more distinctly convex; sutural stria more nearly complete, extending clearly into basal half of elytron, often reaching basal arch of 4th stria | | | 114 |
| |
|
| 114 | | | Epistoma deflexed relative to frons | | | 115 |
| |
|
| – | | | Epistoma and frons more or less coplanar (sharing a common median depression; Fig. 24C) | | | Baconia salobrus (Marseul) |
| |
|
| 115 | | | Labrum deeply emarginate (Fig. 28C); mesometaventral stria transverse, strongly crenulate, coincident with mesometaventral suture; epistoma lacking central fovea | | | Baconia emarginata sp. n. |
| |
|
| – | | | Labrum at most weakly emarginate (Fig. 28A); mesometaventral stria at least slightly arched anterad at middle, departing from mesometaventral suture, less strongly crenulate; epistoma frequently with median fovea | | | Baconia anthracina sp. n. |
| |
|
| 116 | | | |
|
| – | | | Epistoma distinctly punctate to punctato-rugose (e.g., Fig. 26A) | | | 117 |
| |
|
| 117 | | | Central portion of frontal stria present, complete across middle; epistoma convex, but strongly deflexed; labrum reduced, narrowly rounded apically (Fig. 26A) | | | Baconia turgifrons sp. n. |
| |
|
| – | | | Central portion of frontal stria fragmented to absent, not complete across middle; epistoma less strongly deflexed; labrum not markedly reduced, transverse to weakly emarginate (Fig. 26C) | | | Baconia crassa sp. n. |
| |
