Psammoecus obesus Grouvelle, 1919: 11 Psammoecus obesus Hetschko 1930: 83 Taxonomic Studies on Australian Psammoecus Latreille (Coleoptera, Silvanidae, Brontinae) Karner, Michael European Journal of Taxonomy 2020 2020-11-12 723 135 158 Grouvelle, 1919 Grouvelle 1919 [571,1016,581,608] Insecta Silvanidae Psammoecus Animalia Coleoptera 7 142 Arthropoda species obesus   Fig. 3      Psammoecus obesus Grouvelle, 1919: 11.    Psammoecus obesus–  Hetschko 1930: 83.    Diagnosis The following combination of character states distinguishes this species: body elongate-oval ( Fig. 3A), length 3.08–3.29 mm; eyes large ( Fig. 3B), irregularly rounded with stronger curvature posteriorly; temples distinct, short, strongly curved; frontal grooves distinct, diverging anteriorly, parallel near end; reaching anterior ²⁄5of eyes; antennae stout ( Fig. 3D), antennomere 8 slightly darkened, antennomeres 9–10 darkened, antennomere 11 bright yellowish-brown; punctation on vertex moderate, punctures distinctly elongate, as large as eye facet diameter; microsculpture on vertex absent, pubescence moderate; pronotum widest just in front of middle ( Fig. 3C), lateral pronotal margins with five teeth; tooth I slightly and tooth V distinctly bigger than II–IV, distance between I and II wider than distances between other teeth, anterior and posterior denticles present, small; pronotal punctation dense, punctures as large as on vertex, distinctly widened, microsculpture absent, pubescence moderate, setae directed medially; elytra widest at middle ( Fig. 3A), with transverse brown maculae behind middle, interstices distinctly wider than striae, pubescence moderate, microsculpture absent; male genitalia ( Fig. 3E–H) strongly sclerotised, median lobe in dorsal view wide, narrowed abruptly near ostium, apical end well rounded, in lateral view also narrowed abruptly, with sharp apical end; parameres in ventral view very wide, inner margins, apex and apical third of lateral margins with distinct setae; in lateral view with very wide basis, narrowed abruptly towards apex with dorsal margin almost forming angle.    Material examined   Holotype  INDONESIA• ♀; Maluku, Seram; Pascoeleg.; “HOLO - | Type” [round label with red border]; “Ceram” [blue, elliptic label]; “Pascoe | Coll. | 93–60”; “  Psammoecus|  obesus| ty. Grouv” [Grouvelle’s hand]; “HOLOTYPUS |  Psammoecus|  obesusGrouv. 1919| det. R.G. Booth2013”; NHMUK.   Other material  AUSTRALIA• 1 spec.; Queensland, Cairns; 16°55′ S, 145°46′ E; 1942; Perkinsleg.; NHMUK•  1 spec.; Queensland, Cassowary Coast Region,  10 kmNE of Tully;  Nov. 1994; C. Reidleg.; rainforest; ANIC•  1 spec.; Queensland, Cassowary Coast Region, Cardstone;  1–2 Dec. 1966; J.G. Brooksleg.; ANIC•  1 spec.; Queensland, Shire of Cook, McIlwraith Range;  500 ma.s.l.; 13°45′ S, 143°22′ E;  27 Jun.–12 Jul. 1989; T.A. Weirleg.; at light; ANIC•  1 spm; Queensland, Shire of Douglas, Daintree;  29 Oct. 1966; E. Brittonleg.; dead leaves, edge of rainforest; ANIC•  1 spm; same data as for preceding; MKF.   INDONESIA• 2 specs; West Papua, Waigeo, Camp Nok;  2500 fta.s.l.; 0°12′ S, 130°50′ E;  Apr. 1938; Cheesmanleg.; NHMUK.    Distribution The species has been found in Australia( Queensland) and Indonesia.    Remarks   Psammoecus obesusis closely related to  P. hirsutusGrouvelle, 1883,  P. decoratus Grouvelle, 1919, and  P. signatus Grouvelle, 1919. It differs from all three by the shape of the male genitalia. 4988673495 NHMUK Pascoe Indonesia R. G. Booth Maluku 7 142 1 1 Maluku holotype 4988673442 [234,422,1670,1696] NHMUK Perkins Australia -16.916666 Cairns 1280 145.76666 7 142 1 Queensland 4988673396 rainforest 1994-11 ANIC C. Reid Australia Cassowary Coast Region 7 142 1 Queensland 4988673491 [209,1381,1776,1803] 1966-12-01 1966-12-02 1966-12-01 ANIC J. G. Brooks Australia Cardstone Cassowary Coast Region 7 142 1 Queensland 4988673408 1989-06-27 1989-07-12 1989-06-27 ANIC T. A. Weir Australia 500 -13.75 McIlwraith Range 1289 143.36667 Shire of Cook 7 142 1 Queensland 4988673309 dead leaves, edge of rainforest 1966-10-29 ANIC E. Britton Australia Daintree Shire of Douglas 7 142 1 Queensland 4988673439 [838,1317,1882,1908] dead leaves, edge of rainforest 1966-10-29 MKF E. Britton Australia Daintree Shire of Douglas 7 142 1 Queensland 4988673335 1938-04 NHMUK Cheesman Indonesia 762 -0.2 Camp Nok 1308 130.83333 Waigeo 7 142 2 West Papua