Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 89. (Budapest 1997)

Zettel, H. ; Chen, P.: Three new taxa of Amemboa Esaki, 1925, from Thailand and Viet Nam (Heteroptera: Gerridae)

Comparative notes: Amemboa schwendingeri sp. n. is similar to A. aquafrigida sp. n., but has a very prominent tooth on the protibia of male (Fig. 4) and a very slender, parallel-sided tip of the pygophor (Fig. 8), which is broader and more regularly tapered in A. aquafrigida sp. n. (Fig. 9). The lateral arms of the proctiger are slightly widened subapically (Fig. 7). Amemboa schwendingeri sp. n. differs from A. prostata mainly by three hair patches on the profemur of male, more slender tip of pygophor, and lacking parameres. Females of A. schwendigeri sp. n. can be separated from A. aquafrigida sp. n. by a relatively longer antenna! segment 2 and by lighter colouration. Amemboa (Amemboides) veláris POLHEMUS & ANDERSEN, 1984 Diagnosis: Lateral parts of metanotum adjacent to mesonotum glabrous; male with long genital segments (longer than sternites 2-7 together), apically rounded pygophor, and a simple elongate paramere; female with metanotum not modified and connexival margin of sternite 7 simple and down-curved. For a detailed description see POLHEMUS & ANDERSEN (1984). Amemboa (Amemboides) veláris veláris POLHEMUS & ANDERSEN, 1984 (Figs 10, 13) Material examined (specimens apterous if not otherwise mentioned): 1 d (holotype) "THAILAND: NW/ Hot area/ Doi Inthanon/ 28. Oct. 1979/ N.M.Andersen leg." (ZMUC); 8 dd , 4 ? ? "Thailand:Chiang Mai Prov./ Doi Suthep NP, Doi 5 Suthep/ nr. Wat Doi/ Suthep, 900 m, 1.11.1995/ leg. H. Zettel (3)" (NMW); 7 d d , 3 Ç ? "Thailand:Chiang Mai Prov./ Doi Suthep NP,Doi Suthep/ nr.Ruesse Cave,900- 1000m/ 5.11.1995,Ieg.H.Zettel(7)" (NMW); 1 ? "Thailand: Chiang Mai/ Doi Suthep NP, Huai/ Sa Lad, 24.111.1994/ leg.W. D.Shepard (1043)" (NMW); 8 d d , 3 C Ç , 7 macropterous d d . 2 macropterous Ç Ç 'Thailand: Chiang Mai Prov./ Doi Chiang Dao/ nr. cave, 500m, 7.11./ 1995, leg. H. Zettel (9a)" (NMW); 2 d d , 4 ? Ç "THAILAND: Chiang Mai Prov./ Fang Dist., Royal Angkhang/ Station, 1400 m, stream/ 14.1.1995, P. Chen & Suriya" (CPC). Diagnosis of subspecies: Body length (in mm): apterous form 3.9-4.4 ( dd ), 4.2-4.7 ( ? ? ), macropterous form 4.3-4.6 (dd), 4.8-4.9 ( Ç <j? ); colour yellowish with a diffuse brownish dorsal colour pattern (especially on thorax) giving the species a marmorate appearance; brownish parts of mesonotum extended, yellowish part usually reduced to two small elongate stripes in anterior third and two elongate spots in posterior half which are more or less confluent in posterior third; male paramere simple, straight barshaped, 0.26-0.31 mm long, with broadly rounded apex; apterous female frequently with long stout black hairs along median part of hind margins of tergites 5 and 6, the connexival margin of sternite 7 evenly rounded and externally and internally at most with thin, short, whitish hairs; winged female with two tufts of long black hairs laterally on tergite 8. Distribution: Thailand: Chiang Mai. Comparative notes: see under A. v. orientális ssp. n.