Hydatothrips ekasi Kudo, 1991

Wang, Chin-Ling, 2007, Hydatothrips and Neohydatothrips (Thysanoptera, Thripidae) of East and South Asia with three new species from Taiwan, Zootaxa 1575 (1), pp. 47-68 : 51-53

Hydatothrips ekasi Kudo

( Fig. 2 )

Hydatothrips (Hydatothrips) ekasi Kudo, 1991: 520

Female macropterous: Body generally brown, abdominal segments IV and V paler than other segments; antennal segments I–III yellow, IV dark brown with basal 1/4 yellow, V–VIII dark brown; forewing brown with a sub-basal pale band. Occipital apodeme touching posterior margin of eyes; ocellar setae III situated in front of posterior ocelli, inside ocellar triangle. Pronotum with dark lines of polygonal reticles outside blotch, most individuals without dots but a few with sparse dots; blotch with dense transverse striae, slightly concave anteromedially and extending to posterior margin of pronotum. Forewing second vein without distal setae. Abdominal tergites II–VI posterior marginal comb absent medially, tergite VII with comb short medially, tergite VIII posterior comb long and complete. Sternites without discal setae.

Male: Similar to female in color and shape but smaller. Abdomen with transverse glandular areas on sternites V–VII.

Specimens examined: JAPAN, Shizuoka, 3 female, 1 male paratypes from Kummerovia striata , 12-viii- 1979 (I. Kudo) . TAIWAN: Taichung, TARI, 3 females, 1 male on Sesbania roxburghii , 1990–1992; Wanfeng , 3 females on grasses, x-xii-1990; Kending, on grasses, xi-2001; Nantou, Shan-Lin Si , 2 females, 1 male on Macaranga tanarius , 8-x-1991; 1 female, 1 male on grasses, iii-1991, 3 females, 1 male, vi-1993.

Remarks: This species is similar to H. ramaswamiahi (Priesner) but can be identified by the shape of the blotch and sternite VII as described in the key. The following specimens of H. ramaswamiahi were examined, loaned by R. zur Strassen from the Senckenberg Museum, Frankfurt, Germany: India, Coimbatore, 6 females, 1 male from Indigo leaves, 6-ix-1923 (A.G.R.).

Figures

FIGURE 2. Hydatothrips ekasi: A. forewing; B. head; C. pronotum; D. meso- and metanotum; E. abdominal sternite VII; F. abdominal tergites III & IV; G. abdominal tergites VI–VIII; H. Hydatothrips ramaswamiahi: pronotum.