7. Tychius hauseri Faust, 1889

(Figures 15–16, 139–140, 251–252, 311, 368, 401).

Tychius hauseri Faust, 1889: 133 . Franz, 1942: 261. Caldara, 1990: 130.

Material examined. CHINA: Shanxi: Wutaixian Beigaohongkou, 1000 m, 3-VI-1964, leg Tiesheng Li (1) .

Redescription. Length 2.7–3.5 mm (Fig. 15–16). Integument dark brown except for reddish rostrum, antennae and legs; on dorsum with moderately dense and compact, elongate scales white to gray and pale to dark brown; suboval white scales covering lateral and middle of pronotum, elytral interstriae 1 and 7. Rostrum (Fig. 139– 140) markedly curved especially at antennal insertion (Rl/Rw 4.00–4.10, Rl/Pl 0.78–0.86 in male; Rl/Rw 4.12– 4.20, Rl/Pl 0.90–0.97 in female), striated on dorsum. Antennal funicle 7-segmented. Eyes slightly prominent. Pronotum subrectangular (Pw/Pl 1.15–1.20), with subrectilinear sides in basal half, weakly convex on dorsum. Elytra subrectangular (El/Ew 1.30–1.52), wider at base than pronotum (Ew/Pw 1.28–1.35). Femora (Fig. 251–252) unarmed. Profemora and protibiae (Fig. 311) without sexual characters. Claws with robust medial teeth, as long as half of claw. Male genitalia: body of penis (Fig. 368) short and wide, nearly parallel-sided, slightly narrowed until near apex, with blunted tip (Fig. 401), apodemes slightly longer than body of penis. Female genitalia (Caldara 1990): spermatheca with parallel-sided short ramus, short robust collum, robust nodulus and robust cornu narrowed in apical portion; spiculum ventrale with arms joined at basal half, then slightly divergent.

Remarks and comparative notes. This species can be distinguished from the other species of this group known from China by the broad white scales arranged on the elytra only on interstriae 1 and 7 and not interspersed on the other interstriae.

Biology. No data are available.

Distribution. Previously known only from the southern part of Russia. New record from China (North China: SHX).