Antillocladius zhengi Wang and Saether

Humberto F. Mendes, Trond Andersen & Ole A. Saether, 2004, A review of Antillocladius Saether, 1981; Compterosmittia Saether, 1981 and Litocladius new genus (Chironomidae, Orthocladiinae), Zootaxa 594, pp. 1-82 : 59

Antillocladius zhengi Wang and Saether

Antillocladius zhengi Wang and Saether, 1993: 229 , Fig. 2 A–B.

Material examined: Holotype as in Wang and Saether (1993). THAILAND: Chiang Mai Province, Nankoi waterfall near Samoeng, 1 male, 10.iv.1991, sweep net, T. Andersen ( ZMBN).

Diagnostic characters: The male imago can be separated from other members of the genus by having a few apical setae on the wing membrane; bare veins; setose squama; costa strongly extended; acrostichals starting in front, anterior one hair­like to lanceolate, posterior ones scalpellate; moderately long virga ; anal point moderately long, triangular with pointed apex and strong lateral setae ; and inferior volsella well developed, rectangular, with anterior somewhat pointed projection of about the same length as the posterior rounded part.

Remarks: The species was described in detail by Wang and Saether (1993) based on a single male from southeast China. The present paper adds a new record from northern Thailand. The specimen from Thailand varies a little in the shape of gonostylus and the number of lateral setae on the anal point is higher. Most measurements however, are close to the measurements given by Wang and Saether (1993).

Figures

FIGURE 2. Antillocladius antecalvus Saether, 1981, pupa. A – tergites I – IX; B – sternites I – IX; C – frontal apotome; D – thorax, anterior part, lateral view; E – detail of anal lobe.