Coriaceolamprodes rubidus, Anisyutkin, 2019

Anisyutkin, L. N., 2019, New genus and species of cockroaches, Coriaceolamprodes rubidusgen. et sp. nov. (Dictyoptera: Blaberidae: Epilamprinae), from the island of Borneo (Sarawak), Zoosystematica Rossica (China) 28 (2), pp. 317-322 : 321-322

Coriaceolamprodes rubidus sp. nov.

( Figs 1–14)

Holotype. Male, Malaysia, Borneo I., State of Sarawak, ~ 30 km from Bintulu City, Similajau National

Park, 3°25´26´´N 113°13´59´´E, primary forest not far from sea, almost at sea level, 12–16 Nov. 2016, A. Gorochov, M. Berezin, E. Tkatsheva, I. Kamskov, and N. Grigoreva coll. ( ZIN) .

Paratypes. 4 males, same data as for holotype ( ZIN) .

Description. Male (holotype). General colour reddish brown; eyes black; areas around ocellar spots and anteclypeus pale ( Fig. 1); antennae yellowish brown; distal halves of tegmina yellowish; metathorax from above and abdominal tergites yellow. Surfaces smooth and lustrous; distal parts of antennae (from 9–10th segment) dull; facial part of head and pronotum with weak punctuation; facial part of head with weak wrinkles above clypeus ( Fig. 1). Head wide and rounded ( Fig. 1); ocellar spots small, but distinct; distance between eyes about as long as eye; distance between antennal sockets 2.5 times as long as scape (~ 0.7 mm); approximate lengths of 3rd–5th segments of maxillary palps related to each other as 1.4:1.0:1.5. Pronotum transverse ( Fig. 2); anterior and lateral margins widely rounded; posterior margin distinctly projected caudally. Anterior margin of fore femur armed as in Fig. 3 (type B), with three spines including one apical spine. Structure of legs and hind tarsi as described for this genus (see above). Anal plate (tergite X) with widely round- ed caudal margin and weak median incision ( Fig. 5); caudal part of anal plate separated by distinct transverse furrow ( Fig. 5: t.f.). Cerci short, flatten, with segments distinctly separated in distal part.

Male genitalia ( Figs 8–14) as described for this genus (see above).

Variations. Head with distance between eyes as 0.8–1.0 eye length; distance between antennal sockets as 2.1–2.6 scape length (~ 0.7–0.9 mm); relative lengths of 3rd–5th segments of maxillary palps approximately 1.1–1.4:1.0:1.4–1.6. Mid metatarsi with single short row consisting of three– five spines; hind metatarsi with ten–seventeen spines in exterior row and with five–seven spines in interior row. Hypandrium sometimes with caudal margin more projected than in holotype.

Female unknown.

Measurements (in mm). Head length 3.2–3.5 (3.4); head width 3.4–3.6 (3.5); pronotum length 4.8–5.5 (5.0); pronotum width 6.5–7.2 (6.9); tegmen length 17.5–18.0 (17.8); tegmen width 5.6– 6.0 (6.0). The measurements in parenthesis are those of the holotype.

Etymology. This species name is the Latin adjective rubidus – dark red.

Comparison. As given for the genus.

Remark. Right hind tarsus of the holotype has only four segments. Probably the fourth tarsomere is absent. The reduction of tarsal segments is usual for the subfamily Epilamprinae .