Jacobyana bezdeki
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Ordo: Coleoptera
Familia: Chrysomelidae
Genus: Jacobyana
Name
Jacobyana bezdeki Biondi, Maurizio, 2011 – Wikispecies link – Pensoft Profile
- Jacobyana bezdeki Biondi, Maurizio, 2011, ZooKeys 86: 49-51.
Diagnosis
Diagnosis. Jacobyana bezdeki sp. n. is different from Jacobyana centrafricana sp.n. and Jacobyana sudafricana sp.n. in having dorsal integuments reddish-brown (integuments are entirely or almost entirely black in Jacobyana sudafricana sp. n. and black with reddish elytral apex in Jacobyana centrafricana sp.n.). Other distinctive characters are: head with frons and vertex distinctly raised (Figs 3, 9, 15); punctation medially absent in distal part of first abdominal sternite and in last abdominal sternite (Figs 5, 11, 18); median lobe of the aedeagus in ventral view laterally sub-parallel and apically widely rounded (Figs 6, 13, 20).
Description
Description.Holotype ♂. Dorsal integument (Fig. 2) reddish-brown with evident metallic reflection; head, pronotum and elytral punctation darkened. Body elliptical (LB = 2.64 mm), weakly elongate, strongly convex. Maximum pronotal width at base (WP = 1.38 mm); maximum elytral width at basal third (WE = 1.80 mm).Frons and vertex (Fig. 3) distinctly raised, with clearly wrinkled and punctulate surface and distinct setiferous punctures; frontal tubercles indistinguishable; interantennal space distinctly smaller than length of first antennomere, medially with two jointed setiferous pores clearly impressed on sub-smooth and punctulate surface; frontal carina not raised; clypeus triangular with large setiferous punctures; labrum sub-rectangular, reddish; palpus yellowish; eye sub-elliptical, normally sized; antenna much shorter than body length (LAN = 0.94 mm; LAN/LB = 0.36), with antennomeres 1-6 entirely pale, antennomere 7 partially darkened, antennomeres 8-11 clearly darkened; antennomeres 1-2 and 7-11 clearly enlarged; length of each antennomere proportional to numerical sequence 22:13:18:9:9:8:12:11:12:12:23 (right antenna).Pronotum (Fig. 4) sub-trapezoidal, strongly transverse (LP = 0.66 mm; WP/LP =2.08), laterally clearly and evenly rounded, basally as wide as elytra; basal margin distinctly sinuous, not bordered; lateral margin distinctly bordered, with anterior setiferous pore rearward little before middle of pronotal side; punctures densely and uniformly distributed on very finely and sparsely punctulate surface; punctures small but clearly impressed. Scutellum very small, sub-triangular, with sub-smooth surface.Elytra moderately elongate (LE = 2.23 mm; LE/LP = 3.36), covering entire pygidium, laterally clearly arcuate, apically jointly rounded; punctures small but clearly impressed, arranged in 9 regular rows (+ 1 short scutellar row); surface sub-smooth with dense punctulation; interstriae flat; humeral callus very weakly prominent; macropterous metathoracic wings.Legs with partially darkened femur and reddish tibia and tarsi; hind tibia straight without dentate external margin; apical spur of hind tibiae short, reddish. First anterior and middle tarsomeres slightly dilated with adhesive setae on ventral side (Fig. 12).Ventral parts (Fig. 5) dark-brown, with dense and rather uniformly distributed setiferous punctures, but medially sparser or absent on prosternum, metasternum, distal part of first abdominal sternite and last abdominal sternite; last abdominal sternite without special preapical impressions.Median lobe of aedeagus (Fig. 6) short and robust (LAED = 0.91 mm; LE/LAED = 2.44), in ventral view laterally sub-parallel, apically widely rounded; ventral sulcus very wide, clearly impressed, with partially wrinkled surface and two paired short longitudinal carinae and numerous small protruding structures; dorsal sulcus poorly-developed; dorsal ligula well-developed, apically acute; median lobe in lateral view clearly arcuate at basal third and slightly sinuous in apical part; surface of median lobe with pores, especially on ventral side of apical part.
Etymology
Etymology. This species is named after its collector J. Bezdek (Czech Republic), valued specialist of Chrysomelidae.
Distribution
Distribution. Malawi (Fig. 1). Eastern Afrotropical chorotype (EAF) (Biondi and D'Alessandro 2006).
Taxon Treatment
- Biondi, Maurizio; D'Alessandro, Paola; 2011: Jacobyana Maulik, an Oriental flea beetle genus new for the Afrotropical Region with description of three new species from Central and Southern Africa (Coleoptera, Chrysomelidae, Alticinae) ZooKeys, 86: 49-51. doi
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