Oenopia zonatus Yu

Yu, Guoyue, Montgomery, Michael E. & Yao, Defu, 2000, Lady Beetles (Coleoptera: Coccinellidae) From Chinese Hemlocks Infested With The Hemlock Woolly Adelgid, Adelges Tsugae Annand (Homoptera: Adelgidae), The Coleopterists Bulletin 54 (2), pp. 154-199 : 192-193

Oenopia zonatus Yu , new species

( Fig. 23)

Description. Male. Length 2.90 mm, width 2.20 mm. Form oval. Head yellowish brown, with two black markings on vertex. Pronotum yellowish brown with pair of black markings, confluent at base; not reaching anterior margin, lateral margin lighter about 1/4 pronotal width. Scutellum black. Elytron brown with two black stripes, one on suture about 2 times wider than scutellum narrowing last 1/7 to apex; other stripe at middle, slightly wider extending to 3/4 elytral length and curving slightly inward apically. Underside brown, with prosternite and meso­ and metasternite black (mesepimeron yellowish white), abdominal sternites dark brown. Legs brown. Interocular distance slightly larger than 1/2 head width. Frons flat, with very spare, fine punctures. Pronotum punctation similar to head. Elytral punctures coarse, deep. Anterior margin of mesosternite slightly U­shaped, concave. Carinae of prosternite extending to 1/2 length of prosternal process. Postcoxal line of first abdominal sternite inclomplete, extending to hind margin with a short disconnected branch. Hind margins of fifth and sixth abdominal sternites weakly, broadly incurvate. Genitalia: Sipho ( Fig. 23a) stout, basal 1/3 arcuate; siphonal capsule with stout inner process, slightly longer outer process; siphonal preapex distinctly slender, apex ( Fig. 23b) two­branched, one short, slightly stout, other long with thread­ like apical half. Tegmen ( Fig. 23d, e) stout; median piece of tegmen slightly divergent to apex, apical margin deeply emarginate. Lateral lobes of tegmen slightly longer than median piece, apex of inner side triangular in lateral aspect.

Variation. Body length 2.55–2.90 mm, width 2.20– 2.20 mm.

Distribution. China (Sichuan).

Type Series. Holotype: (Ƌ), Sichuan: Baoxing: Qiaoqi (30.3 N, 102.8 E), 1996­V, Guo H. et al. leg. ( BAAF) . Paratypes: (2 total, same as holotype except) (1 Ƌ), 9­V­1995; (1 Ƌ), 12­X­1996 ( CAF) .

Etymology. The name refers to the black longitudinal markings on the elytra.

Remarks. The black marking of one paratype reaches the anterior margin of pronotum. This species is easily separable from other Palearctic species by its striped elytra. It resembles three African species, O. alesioides, O. exclamationis, and O. nigrolineata, in having elytra with black stripes ( Fürsch 1988), but is quite different in male genitalia.