dcsimg

Description

provided by Zookeys
♂. 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). (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 1–6entirely 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). (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. 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. 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). (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. (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.
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copyright
Maurizio Biondi, Paola D’Alessandro
bibliographic citation
Biondi M, D’Alessandro P (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: 47–59
author
Maurizio Biondi
author
Paola D’Alessandro
original
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Distribution

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Malawi (Fig. 1). Eastern Afrotropical chorotype (EAF) (Biondi and D’Alessandro 2006).
license
cc-by-3.0
copyright
Maurizio Biondi, Paola D’Alessandro
bibliographic citation
Biondi M, D’Alessandro P (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: 47–59
author
Maurizio Biondi
author
Paola D’Alessandro
original
visit source
partner site
Zookeys