Afidentula

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Taxonavigation

Ordo: Coleoptera
Familia: Coccinellidae

Name

Afidentula Kapur – Wikispecies link – Pensoft Profile

• Afidentula Kapur, 1958: 324. Type species: Epilachna manderstjernae Mulsant, 1853 (by original designation). – Jadwiszczak and Węgrzynowicz 2003; Kovár 2007; Ren et al. 2009; Tomaszewska and Szawaryn 2013; Szawaryn et al. 2015. part of Afidenta Dieke, 1947; Szawaryn et al. 2015. part of Epilachna Chevrolat in Dejean, 1837; Szawaryn et al. 2015. part of Henosepilachna Li in Li & Cook, 1961; Szawaryn et al. 2015.

Diagnosis and comments

Species of Afidentula are most similar to Afidenta by the general body shape and colouration (Figs 1a–d, 2a–c, 3a–d, 4a–c), bifid tarsal claws with a large basal tooth (Figs 1k, 2k), abdominal sternite VIII in female not divided longitudinally and female genitalia with oval coxites lacking styli (Figs 1h, o, 2d, o, 3e, j, 4d). Afidentula in the present sense (Szawaryn et al. 2015) constitutes morphological pretty diverse group, especially after inclusion of some species of former Epilachna and Henosepilachna from Madagascar. The Asian species of Afidentula, however, can be easily distinguished from Afidenta (and other Epilachnini genera) by the following combination of characters: mandibular incisor edge smooth (incisor edge microdenticulate in Afidenta, Fig. 1e), ventral surface of incisor edge without tubercles, terminal labial palpomere narrower and shorter than penultimate one (narrower but as long as penultimate one in Afidenta), metaventral postcoxal lines joined on metaventral process in form of straight line (forming somewhat w-shaped line along discrimen in Afidenta), tibial spurs absent (present in Afidenta, Figs 1i-j), abdominal postcoxal lines complete or almost so (distinctly incomplete in Afidenta, Fig. 1h), tegminal strut triangularly expanded apically (simple in Afidenta, Fig. 1m–n), parameres shorter than penis guide and very narrow (in Afidenta, parameres as long as penis guide and much broader than in Afidentula, Fig. 1m–n). Afidentula is also similar to Afissa Dieke (=Afissula Kapur) in general appearance, but it can be separated by having antennae distinctly shorter than width of the head and with at least antennomeres 7 and 8 subquadrate (in Afissa antennae are longer than width of head and have antennomeres 3–8 elongate) and tibiae without apical spurs (tibial spurs present in Afissa).
Monographic revision of all Epilachnini genera based on the results of phylogenetic analysis is in preparation (Tomaszewska and Szawaryn, in prep.) and richly illustrated; detailed descriptions of all genera will be provided there.

Distribution

Asia and Africa.

Key to the Asian species of Afidentula

(based on Tomaszewska and Szawaryn 2013)

Key to the Asian species of Afidentula — X. Wang , W. Tomaszewska , S. Ren

1		Background of elytra black, covered with yellowish orange, round spots (Fig. 4a–c)    Afidentula jinpingensis sp. n.
–		Background of elytra brown, covered with black spots or bands    2
2		Lateral and basal margins of elytra black; disk of each elytron with three round-oval, black spots    Afidentula minima (Gorham)
–		Lateral and basal margins of elytra brown like elytral background; each elytron with more than three spots, rarely some of them may be fused and arranged in transverse bands    3
3		Each elytron with four black spots    4
–		Each elytron with more than four spots or with transverse bands    6
4		Body 1.13 times as long as wide, heart-shaped; elytra chestnut brown; epipleura about 3.5 times wider than metepisternum    Afidentula semisqualens Tomaszewska & Szawaryn
–		Body 1.24–1.43 times as long as wide, oval; elytra reddish brown or orange; epipleura at most 2.65 times wider than metepisternum    5
5		Labial palpomere 2 at most 1.15–1.20 times longer than terminal palpomere; prosternal process about 0.28–0.30 times as wide as longest procoxal diameter, truncate apically; penis guide with sharp tooth in apical fourth and short incision at apex    Afidentula bisquadripunctata (Gyllenhal)
–		Labial palpomere 2 1.35–1.50 times longer than terminal palpomere; prosternal process about 0.34–0.36 times as wide as longest procoxal diameter, weakly rounded apically; penis guide with blunt tooth in apical fourth and without incision at apex    Afidentula thanhsonensis Hoàng
6		Body larger, 4.90–5.33 mm long; long-oval, 1.38–1.43 times as long as wide; elytra 1.17–1.20, almost parallel-sided    7
–		Body smaller, 2.83–4.80 mm long; short-oval, 1.16–1.33 times as long as wide; elytra 0.97–1.13 times as long as wide, oval    8
7		Head black; mesoventral process about 0.55 times as wide as mesocoxal diameter; meso- and metaventrite without distinct grooves behind anterior raised borders    Afidentula quindecemguttata (Dieke)
–		Head red or reddish brown; mesoventral process about 0.65 times as wide as mesocoxal diameter; with distinct groove behind anterior raised border of mesoventrite and behind raised border of metaventral process    Afidentula himalayana Kapur
8		Elytron with medio-anterior spot distant from scutellum and suture; body 2.83–3.68 mm long    Afidentula manderstjernae (Mulsant)
–		Elytron with medio-anterior spot touching at least suture; body 3.85–4.80 mm long    9
9		Medio-anterior spot on each elytron touching one another along suture but constitute distinct separate spots; antennomere 4 slightly longer than 5; penis guide in anterior view gradually narrowing from mid length to apex    Afidentula stephensi (Mulsant)
–		Medio-anterior spot on each elytron fused together forming one macula; antennomere 4 not longer than 5 (Figs 2a–b, 3a–d); penis guide in ventral view subparallel or even widening before apex (Figs 2n, 3i)    10
10		Antennomere 4 and 5 subequal in length; pronotum with large black spot which almost cover whole surface of pronotum (Fig. 3c); apex of penis with two tooth-shaped processes directed inwardly (Fig. 3f–g)    Afidentula dentata sp. n.
–		Antennomere 4 shorter than 5; pronotum with two, separate large black spots (Fig. 2c); apex of penis with small, sharp process directed outwardly (Fig. 2l)    Afidentula siamensis (Dieke)

Taxon Treatment

• Wang, X; Tomaszewska, W; Ren, S; 2015: A contribution to Asian Afidentula Kapur (Coleoptera, Coccinellidae, Epilachnini) ZooKeys, (516): 35-48. doi

Images

Figure 1. Afidenta misera (Weise, 1909). (a, d) dorsal habitus b lateral habitus c frontal habitus e mandible f antenna g maxilla h abdomen i front leg j hind leg k tarsal claw l–n male genitalia: l penis m tegmen, lateral view n tegmen, ventral view o ovipositor.  Figure 2. Afidentula siamensis (Dieke, 1947), comb. n. a dorsal habitus b lateral habitus c frontal habitus d abdomen e antenna f mandible g maxilla h labium i front leg j hind leg k tarsal claw l–n male genitalia: l penis m tegmen, lateral view n tegmen, ventral view o ovipositor.  Figure 3. Afidentula dentata sp. n. (a, d) dorsal habitus b lateral habitus c frontal habitus e abdomen f–h male genitalia: f penis g apex of penis h tegmen, lateral view i tegmen, ventral view j ovipositor.  Figure 4. Afidentula jinpingensis sp. n. a dorsal habitus b lateral habitus c frontal habitus d abdomen e–f male genitalia: e penis f tegmen, lateral view.