Antillocladius arcuatus 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 : 29

Antillocladius arcuatus Saether

Antillocladius arcuatus Saether, 1982: 474 , Fig. 5 .

Material examined: Type material as in Saether (1982). BRAZIL: São Paulo, Cajuru, Fazenda Rio Grande, 21°12'S, 47°09'W, 2 males, 18.xii.1999 – 10.i.2000, Malaise trap, G. Melo & F. Nascimento ( MZUSP). MEXICO: Nuevo Leòn, Santiago, 30 km west of Cola Caballo on road to Laguna de Sánchez, 2 males, 19.ix.1998, light trap, T. Andersen & A. Contreras­Ramos ( ZMBN); Nuevo Leòn, Allende, Rio Ramos at Raices, 2 km west of highway 85, 2 males, 20.ix.1998, sweep net & light trap, T. Andersen & A. Contreras­ Ramos ( ZMBN). VENEZUELA, Falcón, Rio Mitare near San Luis, 11°07.930'N, 69°39,184'W, 8 males, 07.vi. 2001, 589 m a.s.l., R.W. Holzenthal, R. Blahnik, H. Paprocki & C. Cressa (2 MIZA, 6 ZMBN).

Diagnostic characters: The male imago can be separated from other members of the genus by having bare wing membrane; squama with 2–3 setae ; acrostichals starting in front, non­scalpellate anteriorly, scalpellate in the middle of scutum; virga absent; anal point thin, tapering to point; and inferior volsella strongly projecting and lobe­like.

Remarks: This species previously was known only from the type locality in southeast USA. The present paper adds records from Brazil, Mexico and Venezuela. The specimens have been taken close to fast flowing streams and rivers in Mexico and Venezuela, and close to a swampy area in Brazil.

Figures

FIGURE 5. Antillocladius folius new species, male imago. A – cibarial pump, tentorium and stipes; B – thorax; C – wing; D – anal point and tergite IX and dorsal aspect of left gonocoxite; E – hypopygium with anal point and tergite IX removed, left dorsal aspect, right ventral aspect; F – gonostylus.