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)

dark erect hairs (Fig. 5); fore leg of female simple; laterotergites 2-5 completely fused in both sexes, or suture between laterotergites 4 and 5 more or less developed. - Male genitalia (Figs 6, 9): Pygophor long, low and slender, with long narrow apical part which is evenly tapering in dorsal view, conspicuously hirsute in distal part. Proctiger with long, curved lateral arms which are broad basally and evenly tapering towards tip, ending narrowly rounded, venlrally set with a few stout bristles in distal part. Dorsomedial part of proctiger set with long hairs basally, then bifid, forking off into a second pair of lateral arms. Second pair of lateral arms much shorter than the first, each arm not obviously tapering, set with stout bristles which are directed ventrad, apically with stout, curved bristles. Parameres very small. - Female terminalia: Connexival margin of sternite 7 evenly down-curved, without prominent hairs; proctiger densely set with long yellow hairs. Macropterous form unknown. Distribution: Thailand: Phetchabun, Chayaphum. Comparative notes: Diagnostic characters in Amemboa (s.str.) species are mainly found in males, whereas females are mostly indistinguishable (POLHEMUS & ANDERSEN 1984). Amemboa aquafrigida sp. n. is closely related to A. prostata POLHEMUS & ANDERSEN, 1984, which is the only described species with a bifid medium part of the proctiger. But in A. prostata the profemur of the male is lacking a distinct proximal hair patch which is very prominent in A. aquafrigida sp. n. (Fig. 5). Further, the lateral arms of the proctiger are widened subapically in A. prostata (see POLHEMUS & ANDERSEN 1984: fig. 53; comp, also Fig. 7). Parameres of A. aquafrigida sp. n. are very rudimentary and seem to be smaller than those of A. prostata (POLHEMUS & ANDERSEN 1984: fig. 53). Amemboa aquafrigida sp. n. is also very similar to A. schwendingeri sp. n.; differences see below. Figs 1-3. Habitus of apterous males showing the colour pattern: 1 = A. schwendingeri sp. n., 2= A. aquafrigida sp. n., 3 = A. veláris, specimen from Nam Nao NP