Greenarus belokobylskii sp. n. (Figs. 48–50)

Description

Male. Black. Metatrochanters brown; elytra reddish­brown.

Head with two minute round impressions behind antennal prominence. Eyes relatively large (interocular distance about 2 times as long as the radius). Maxillary palpi slender, with ultimate palpomere parallel­sided, flattened at apex. Antennae filiform, extending to slightly beyond two thirds the length of elytra, with antennomere 3 about twice as long and wide as antennomere 2 and twice as short as antennomere 4; antennomeres 4–10 subequal in length, antennomere 11 the longest, 1.7 times longer than antennomere 10; antennomeres 1–3 with decumbent pubescence, antennomeres 4–11 with short erect pubescence.

Pronotum transverse, 1.3 times wider than long, with conspicuous rhomboidal median areola, connected with side margins by prominent straight carinae; lateral margins narrowing anteriorly, with hind angles prominent and acute. Scutellum elongate, slightly narrowing apically, emarginate at apex.

Elytra long, 3.15 times longer than wide at humeri, slightly widening posteriorly, with 4 primary costae; costae 3 and 4 prominent, costa 2 reduced, becoming inseparable from secondary ones from base, costa 1 reduced, becoming inseparable from secondary ones in basal sixth. Elytra with only 3 apparent interstices; interstice 1 with three rows of relatively regular mostly square cells, except at base; interstice 2 with one row of cells, except in middle third where two rows of irregular cells are present; interstice 3 with one row of cells. Pubescence uniform, short and relatively sparse.

Metatrochanters with blunt posterior angles.

Aedeagus with parameres ventrally incised at apex (Figs. 48–50).

Length: 7.3–7.4 mm. Width (humerally): 1.95–2.0 mm.

Female. Unknown.

Type material

Holotype male: Vietnam, Hoa Binh Pr., Mai Chan Distr., Pa Co, 1100–1200 m, 20º45íN 104º54íE, 27–28.IV.2002, S.Belokobylsky leg. (ZIN); Paratype male: Vietnam, Hoa Binh Pr., Mai Chan Distr., Hang Kia, 1300 m, 20º44íN 104º54íE, 25–26.IV.2002, S.Belokobylsky leg. (SVK).

Diagnosis

G. belokobylskii sp. n. is placed in the genus Greenarus due to the structure of the aedeagus and minute apical plantar pad on metatarsomere 1. G. belokobylskii is also similar to Benibotarus (Sibetarus) taygetanos in terms of its elytral reticulation, but is easily separable from all Sibetarus species by its coloration, the extremely weakened first elytral costa and the different type of aedeagus (Figs. 48–50).

Etymology

Named after its collector, Dr. S.Belokobylsky (St. Petersburg).