Review of the Asian Thaumastodinae (Coleoptera, Byrrhoidea, Limnichidae), with a phylogeny of the genera Author Yoshitomi, Hiroyuki text European Journal of Taxonomy 2019 2019-09-04 583 1 45 journal article 24720 10.5852/ejt.2019.583 104a1ea7-b7d6-45cd-9402-bc84ab16b143 3564532 4F834ADD-57E7-4CE3-B16A-127F1BE4AE14 Pseudeucinetus papuanus sp. nov. urn:lsid:zoobank.org:act: 978D5D6D-8D48-425D-AB1B-0536A2E10753 Figs 9A , 10 Etymology This species is named after its type locality. Material examined Holotype PAPUA NEW GUINEA • ♂ ; “NEW GUINEA NETH. Waris, S. of Hollandia, 450–500m VIII-I-2-1959”; “ T. C. Maa Collector BISHOP”; “At Light”; BPBM . Description Male BODY. Oval, slightly convex dorsally, shiny, closely covered with suberect silver setae. Coloration of body black; antennae and legs blackish brown. HEAD. Moderate in size; clypeus with straight anterior margin. Eyes large; distance between eyes about 3 eye facets. ANTENNAE. Short, reaching about anterior third of pronotum. PRONOTUM. Widest at base; lateral margins straight; posterior margin gently bisinuate; PW/ PL 2.33. Scutellum small, square. ELYTRA. Oblong, widest at basal third; EL/ EW 1.43; EL/ PL 4.00; EW/PW 1.20; TL/ EW 1.79. Fore tarsomere I largely expanded, longer than remaining fore tarsomeres combined. ABDOMEN. Sternite VII ( Fig. 10A ) with three pairs of anterior extra setae (a) and two pairs of lateral extra setae (b). Sternite IX ( Fig. 10B ) moderately sclerotized, with long and pointed apical plates. Fig. 9. Pseudeucinetus spp. A . P . papuanus sp. nov. , holotype (BPBM). B . P . uenoi Spangler, 1995 (EUMJ). C . P . javanicus Yoshitomi & Putra, 2010 , paratype (EUMJ). D . P . solomonicus Yoshitomi & Putra, 2010 , paratype (EUMJ). E . P . zygops Heller, 1921 (EUMJ). Scale bars: 1.0 mm. AEDEAGUS ( Fig. 10 C–D). Long, well sclerotized; basal piece oblong, subparallel-sided; lateral lobes long, about 1.4 times as long as basal piece, straight on lateral margins, with a pair of obtuse subapical inner projections on apical fifth; median lobe long, about 0.9 times as long as lateral lobes, nipple-like at apex; ML/ BL 1.29; ML/ LL 0.89. Female Unknown. Fig. 10. Pseudeucinetus papuanus sp. nov. , male genitalia, holotype, BPBM. A . Sternite VII. B . Sternite IX. C . Aedeagus, ventral view. D . Aedeagus, right lateral view. Measurements Male (n = 1): TL 2.15 mm ; PW 1.00 mm; PL 0.43 mm ; EL 1.72 mm ; EW 1.20 mm . Distribution Papua New Guinea . Remarks This species is related to Pseudeucinetus novabritannica from the Bismarck Archipelago and P . solomonicus from the Solomon Islands , and differs from them in the following characteristics: 1) subapical inner projection of lateral lobe obvious (large and distinct in P . solomonicus ); 2) subbasal inner projection of lateral lobe absent (present in P . novabritannica ); and 3) basal piece long, about 0.7 times as long as lateral lobe (about 0.5 in P . novabritannica , about 0.8 in P . solomonicus ).