20. Tychius vossi Caldara, 1990

(Figures 59–62, 183–186, 275–276, 324, 380, 414–415, 445, 471)

Tychius vossi Caldara, 1990: 180 .

Material examined. CHINA: Inner Mongolia: Xinganmeng Qianqi, 12-VIII-1983 , leg Yinbao (1); same data, 4- VIII-1983 (1) ; Kenerqin Suolunqi, 28-VI-1957 (2) . Heilongjiang: Nenjiang, 24-VI-1963, leg Hongxing Li (2) . Shanxi: Wutaishan Dongtai, 13-VI-1964, legTiesheng Li (1). Sichuan: Ganzi, 17-VII-1980 (1) ; same data, VII-1980 (2) . Xinjiang: Qinghe (1260m), 6-VII-1960 , leg Shuyong Wang (1); Helianthus annuus, 7-VII-1971 (1).

Redescription. Length 2.50–2.70 mm (Fig. 59–62). Integument reddish brown, with dorsal vestiture formed by recumbent, narrow, pale brown, dark brown and whitish scales, the first more numerous at sides of pronotum and on elytra, the latter forming a indistinct longitudinal vitta on pronotum at midline; sparse broad scales at base and sides of pronotum and on elytral interstria 1. Rostrum (Fig. 183–186) stout (Rl/Rw 2.95–3.32 in male, 3.27–3.36 in female; Rl/Pl 0.72–0.86 in male, 0.82–0.87 in female), poorly sexually dimorphic. Antennal funicle 7-segmented. Eyes globose, prominent. Pronotum slightly transverse (Pw/Pl 1.09–1.20), with parallel sides in basal half, distinctly narrower than elytra at base. Elytra suboval (Ew/Pw 1.20–1.40; El/Ew 1.42–1.67), with prominent humeri. Femora (Fig. 275–276) with small tooth. Profemora and protibiae (Fig. 324) without sexual characters. Claws with robust medial teeth, as long as half of claw. Genitalia: body of penis (Fig. 380) long, narrow, very slightly enlarged at apical third on dorsal view, with blunted large tip (Fig. 414–415), longer than apodeme. Female genitalia: spermatheca (Fig. 445) with short ramus and short collum, indistinct nodulus, long cornu distinctly narrowed in apical part; spiculum ventrale (Fig. 471) with arms convexly spaced in apical 2/3.

Remarks and comparative notes. This species is similar to T. meliloti, from which it differs by globose prominent eyes, the shape of the rostrum and, in males, by the protibiae without a tooth at the middle of the inner margin.

Biology. No data are available. We have examined one specimen labeled as collected on Helianthus annuus L. ( Asteraceae), however, we believe this association to be accidental.

Distribution. Previously known only from Mongolia. New record from China (HEI NMO SHX SCH XIN).