Acontosceles zetteli Pütz, 2008

Yoshitomi, Hiroyuki, 2019, Review of the Asian Thaumastodinae (Coleoptera, Byrrhoidea, Limnichidae), with a phylogeny of the genera, European Journal of Taxonomy 583, pp. 1-45 : 12-14

Acontosceles zetteli Pütz, 2008

Figs 5F , 8

Acontosceles zetteli Pütz, 2008: 317 .

Material examined

LAOS • 1 ♂; “ LAOS: Vientiane Prov. Ban Van Eue 15. XII. 1966 ”; “Native Collector BISHOP”; BPBM .

Redescription

Male

For a detailed description of the external features, see the original description ( Pütz 2008). PW/ PL 2.83; EL/ EW 1.48; EL/ PL 4.93; EW/ PW 1.18; TL/ EW 1.78.

Sternite VII ( Fig. 8A ) arcuate on caudal margin, bearing about 20 long setae in median part. Sternite VIII ( Fig. 8B ) membranous. Sternite IX ( Fig. 8C ) slightly sclerotized, with long apical plates bifid in apical parts. Aedeagus ( Fig. 8 D–F) short, well sclerotized, slightly curved ventrally; basal piece oblong, subparallel-sided; lateral lobes short and broad, straight on lateral margins, closely punctuate, minutely projecting ventro-laterally at apices; median lobe slender, about 0.8 times as long as lateral lobe, slightly curved ventrally; ML/ BL 0.34; ML/ LL 0.82.

Female

Unknown.

Measurements

Male (n = 1): TL 1.78 mm; PW 0.85 mm; PL 0.30 mm; EL 1.48 mm; EW 1.00 mm.

Distribution

Thailand, Laos (new record).

Figures

Fig. 5. Acontosceles spp. A. A. borneensis sp. nov., holotype (BPBM). B. A. yorioi Satô, 1966 (EUMJ). C. A. hydroporoides Champion, 1924 (NME). D. A. chujoi Yoshitomi & Satô, 2005 (EUMJ). E. A. siwalikensis Pütz, 2008 (NME). F. A. zetteli Pütz, 2008 (BPBM). Scale bars: 1.0 mm.

Fig. 8. Acontosceles zetteli Pütz, 2008, male genitalia (BPBM). A. Sternite VII. B. Sternite VIII. C. Sternite IX. D. Aedeagus, dorsal view. E. Aedeagus, ventral view. F. Aedeagus, left lateral view.