Eotrechus luaae Tran & Zettel, 2006

Tran, Anh Duc, Zettel, Herbert & Sites, Robert W., 2023, Revision of the genus Eotrechus Kirkaldy (Hemiptera, Heteroptera, Gerridae), with descriptions of six new species, Deutsche Entomologische Zeitschrift 70 (1), pp. 69-111 : 69

Eotrechus luaae Tran & Zettel, 2006

Fig. 25

Eotrechus luaae Tran & Zettel, 2006: 43-46, figs 9-16 (type locality: Hainan Island, China).

Material examined.

Holotype and paratypes: see Tran and Zettel (2006).

Diagnosis.

Size: apterous males, length 7.50-8.00 (holotype 8.00), width 2.31-2.51 (holotype 2.51); apterous females, length 8.00-8.70, width 2.48-2.81; macropterous female, length 9.80, width 2.74. Mesosternum 2.9-3.1 × length of metasternum. Male: fore femur incrassate, with a large basal tubercle, tubercle with a patch of black, minute setae; abdomen relatively short, slightly depressed from sterna III-VII. Male genitalia: segment VIII large, lateral spiracle situated on minute tubercle; pygophore in ventral view long, slender, and constricted in middle, ventral surface convex, produced into median broad ridge, straight in lateral view, posterior part produced into narrow plate-like structure, tapering towards apex; paramere ovoid, with soft setae at apex; proctiger distinctly trilobed, posteroventral surface with dense patch of long, brush-like setae. Female: fore femur moderately incrassate, base without tubercle; ventral side with row of ca. 12 stiff setae; sternum VII slightly tapering towards apex, length ca. 1.3 × length of two preceding sterna combined; genitalia not concealed into abdomen, in lateral view, apex of proctiger acute.

Remarks.

See Remarks for E. fansipan .

Distribution.

China: Hainan Island ( Tran and Zettel 2006) (Fig. 25 ).

Figures

Figure 25. Distribution records of species of Eotrechus. Squares represent E. kalidasa species group; circles represent E. pingae species group; triangles represent species unassigned to a group.