Eropterus glebulus, Kazantsev, Sergey V., 2004

Kazantsev, Sergey V., 2004, Phylogeny of the tribe Erotini (Coleoptera, Lycidae), with descriptions of new taxa, Zootaxa 496, pp. 1-48 : 31-32

Eropterus glebulus sp. n. ( Figs. 51–53 )

Description

Male. Black. Elytral humeri testaceous.

Head convex behind antennal prominence. Eyes small (interocular distance about 3 times as long as the radius). Maxillary palps slender, with ultimate palpomere elongate, parallel­sided and flattened apically, about the length of palpomeres 2 and 3 combined. Ultimate labial palpomere widened apically. Antennae filiform, extending to slightly beyond the middle of elytra; antennomere 3 equal in length and width to antennomere 2 and both combined about 1.2 times shorter than antennomere 4; antennomeres 4–10 subequal in length; antennomeres 1–3 with decumbent, antennomeres 4–11 with erect pubescence.

Pronotum transverse, 1.3 times wider than long, with inconspicuous anterior median rib, with short oblique lateral carinae; lateral margins parallel­sided, slightly incised before small acute posterior angles. Scutellum elongate, slightly narrowing posteriorly, with posterior margin straight.

Elytra relatively long, 2.75 times longer than wide at humeri, slightly widening posteriorly, with 4 primary costae; costa 1 indistinguishable in posterior two thirds, interstice 1 with four rows of irregular cells; costa 3 noticeably stouter than others in posterior half; interstices with double rows of mostly roundish irregular cells. Relatively long semi­erect pubescence distributed along costae.

Legs slender and narrow; metatrochanters with rounded posterior angles, tarsomere 1 without plantar pad, tarsomere 2 with apical plantar pad.

Aedeagus relatively wide, with laterally flattened median lobe ( Figs. 51–53 ).

Length: 5.9 mm. Width (humerally): 1.8 mm. Female. Unknown.

Type material

Holotype male: C Laos, Bolikhamsai, Ban Nape, Kaew Nua Pass, 18º22.3'N 105º09.1'E, 500–700 m, 18–30.V.1998, Strba & Hergovits leg. ( ICM).

Diagnosis

E. glebulus sp. n. differs from all its congenerics by the short antennomere 3, which is equal in length and width to antennomere 2. At the same time it may be placed near E. nothus (Kiesenwetter) due to the similar structure of the aedeagus, differing from it, in addition to the antennal structure, in coloration and the details of the aedeagus ( Figs. 51– 53 ). E. glebulus is the southernmost occurring representative of the genus Eropterus , which is for the first time recorded from the Oriental region.

Etymology

Derived from the Latin for "a little clod or lump of earth or anything".

Figures

FIGURES 48 – 55. Aedeagi. 48 — Greenarus belokobylskii sp. n., ventrally; 49 — laterally; 50 — dorsally; 51 — Eropterus glebulus sp. n., ventrally; 52 — laterally; 53 — dorsally; 54 — Propyropterus (s. str.) plateroides sp. n., ventrally; 55 — laterally. Scale: 0.5 mm.