Anisoderomorpha tuberculata Arrow, 1925

Toki, Wataru, 2020, Two new species of the genus Anisoderomorpha Arrow, 1925 (Coleoptera: Erotylidae: Languriinae), Zootaxa 4779 (4), pp. 563-572 : 564-566

Anisoderomorpha tuberculata Arrow, 1925

( Figs. 1–12 )

Anisoderomorpha tuberculata Arrow 1925: 183 , fig. 35; Villiers 1945: 186.

Material examined. Holotype: male ( BMNH), “ Anisoderomopha tuberculata , type, Arrow / Holotype / Doherty / Birmah Ruby Mts / Fry Coll. 1905. 100. / NHMUK010369260.”

Diagnosis. This species can be easily separated from all other Anisoderomorpha species by the following characteristics: head black; elytra brownish red.

Redescription. Male. Body length = 16.90 mm. Elytral length = 11.88 mm.

Coloration almost black; elytra and abdomen (except base) brownish red.

Head ( Fig. 3 ) almost symmetrical. Clypeus rounded, asymmetrical. Maxilla rather feebly chitinous, the inner lobe armed with three minute blunt teeth at the tip. Ligula entirely membranous, labial palpi broadly truncate at the end. Antenna ( Fig. 4 ) with 5-segmented club; antennomere III> II = IV = V; VI as long as wide; VII dilated terminally, distinctly wider than VI, much narrower than VII; VIII strongly transverse, dilated terminally, as wide as X; IX strongly transverse, wider than the rest; X strongly transverse; XI rotundate-ovate, a little narrower than X.

Pronotum ( Fig. 5 ) subquadrate, convex in front, feebly narrowed from the front to the hind margin; basal margin only slightly arched posteriorly at median part; posterior angles not projected, slightly pointed. Prosternal process ( Fig. 6 ) forming a rounded deflexed lobe behind the coxae. Mesoventrite hollowed, bilobed behind. Metaventrite acutely notched between the hind coxae.

Scutellar shield ( Fig. 7 ) as long as wide; apex acute. Elytra ( Figs. 7–9 ) very straight; the intervals rugulose and minutely and rather closely punctured; apical margins evenly and conjointly rounded. Tibiae smooth. Tarsi moderately dilated and fairly long. Abdominal ventrites 1–4 with a deep pit on each side.

Male terminalia. Sternite VIII ( Fig. 10 ) parallel-sided; posterior part closely pubescent and punctate; apical margin arched anteriorly at median part. Tegmen ( Fig. 11 ) ventrally with a pair of sclerotized ridges in middle, enclosing penis; parameres distinctly asymmetrical in length, flattened, stout, with long setae at apical part. Penis ( Fig. 11 ) long, flat, curved laterally; narrowed apically, rounded at the apex; penile struts as long as the length of median lobe excluding penile struts.

Female. Unknown.

Distribution. Myanmar (Ruby Mines).

Figures

FIGURES 1–12. Holotype of Anisoderomorpha tuberculata Arrow, 1925, male. 1) Dorsal habitus; 2) ventral habitus; 3) head, dorsal view; 4) right antenna; 5) pronotum; 6) prosternal process; 7) anterior part of elytra with scutellar shield; 8) elytral apices; 9) prominent tubercle on elytral shoulder, left lateral view; 10) abdominal ventrite 5 and segment VIII, ventral view; 11) tegmen and penis, dorso-lateral view; 12) labels. Scale bars = 5.0 mm (1, 2), 1.0 mm (3–11).