Euops (Riedeliops) keiseri subsp. nilgiriensis Riedel, 2009, ssp. n.
Creators: name: Riedel, Alexander
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Attelabidae
Euops
Euops keiseri
Euops (riedeliops) keiseri nilgiriensis

description: Euops (Riedeliops) keiseri nilgiriensis ssp. n.
Description. Holotype, male. Body length: 2.10 mm. Coloration black with marked bluish-bronze lustre, most distinct on pronotum; elytra dark blue.
Head (Fig. 112) short. Gena 0.75 x as long as width of head behind eyes. Vertex microreticulate, punctate, weakly rugose. Eyes dorsally contiguous in middle for 0.7 x their length. Ventral surface markedly transversely rugose, anteriorly with interspersed punctures.
Rostrum 1.44 x longer than mouthparts; sides subparallel to antennal insertion, diverging anteriad, subapically rounded; at widest point 1.24 x wider than at base; dorsum above antennal insertions with weakly rounded prominence, anteriorly sinuate to apex. Clypeus medially with simple notch. Basal lateral groove distinct, ventrally curved, its convex side anteriorly; terminating on level of ventral margin of eye. Venter basally without submental median carina. Submentum shining, posteriorly densely punctate, anteriorly with two long, stiff, suberect setae. Prementum at base 1.8 x wider than long, ca. 3.5 x wider than at apex; sides straight, converging apicad.
Antenna (Fig. 120)with funicular articles relatively broad.
Proventriculus with eight uniform primary folds bearing spiniform processes.
Thorax. Prothorax 0.87 x as long as wide; subbasal constriction laterally absent, dorsally shallow; sides converging in straight line, weakly rounded in apical third; without preapical constriction; anterior margin laterally in front of procoxa with collar-like extension abruptly truncated ventrally, angular in profile; disc markedly punctate-rugose, in basal half with transverse wrinkles concave, in apical half rather V-shaped; sides punctate; prepectus in lateral aspect as long as postpectus; mesosternum with apically rounded, cone-shaped protrusion directed anteriad. Height of pterothorax 0.91 x length of elytron.
Elytron 2.00 x longer than wide; intervals weakly shining, somewhat dull, with distinct coriarious sculpture of irregularly transverse wrinkles.
Legs. Procoxa 0.88 x as long as wide; approaching anterior margin of prothorax; in anterior aspect coxae with inner contour diverging in convex line; anterior surface microreticulate, sparsely shallowly punctate. Protibia with dorsal contour evenly convex; uncus subventral. Mesotibia (Fig. 127) with subapical dorsal extension stout, spiniform.
Abdomen. Venter laterally weakly concave; surface medially sparsely punctate, glabrous except ventrite 4 with median pit containing dense brush of erect setae, their tips pointing forward (Fig. 98). Pygidium 0.80 x wider than long.
Terminalia. Sternite VIII (Fig. 166) medially subdivided by membrane connecting lateral sclerotised areas; apex broadly bilobate, densely setose with long setae; base medially with marked constriction. Tegminal plate as in Fig. 152. Aedeagus with sclerotised sides of pedon widening mesoapicad, connected to subtriangular plate fused with its short side to apical scoop, the latter (Fig. 151) ca. 1.15 x longer than wide, sides sinuate and converging, apex pointed; tectum with sides converging, apically pointed; TA (Figs. 149–150) flagelliform, insertion of ductus ejaculatorius ventral; basal sclerite long, narrow, folded dorsoapicad, dorsally fitting to basal half of long, S-shaped flagellum formed by fusion of extended transfer processes. Endophallus with cuticle densely minutely denticulate.
Female. As holotype except: Length 2.28 mm. Head as in Fig. 113. Gena 0.69 x as long as width of head behind eyes. Rostrum 1.67 x longer than mouthparts. Prothorax 0.76 x as long as wide. Elytron 2.11 x longer than wide. Height of pterothorax 0.87 x length of elytron. Procoxa as long as wide (1.03 x). Protibia (Fig. 134) with dorsal contour evenly convex; ventral contour evenly sinuate; uncus median. Abdomen with venter flat. Pygidium 1.10 x wider than long. Sternite VIII as in Fig. 173. Spermatheca (Fig. 182) with body moderately tapering apicad.
Material examined. Holotype, male: INDIA, Tamil Nadu, 15 km SE Kotagiri, Kunchappanai, 11°22´N, 76° 56´E, 900m, leg. D. Hauck (SMNK). Paratypes: INDIA, Tamil Nadu: 1 female, same data as holotype (ARC in SMNK); 1 female, Tamil Nadu, 15 km SE Kotagiri, Kunchappanai, 11°22´N, 76° 56´E, leg. L. Dembický & P. Pacholátko, 17.–22.V.1997 (NHMB).
description: Published as part of Riedel, Alexander, 2009, A taxonomic study of the Indian species of Euops Schoenherr (Coleoptera: Curculionoidea: Attelabidae), pp. 1-56 in Zootaxa 2125 on pages 27-28, DOI: 10.5281/zenodo.188214