New species of Lopescladius (Cordiella) Coffman et Roback (Chironomidae: Orthocladiinae) from Brazil Author Hagenlund, Linn K. Author Andersen, Trond Author Mendes, Humberto F. text Zootaxa 2010 2728 39 49 journal article 46909 10.5281/zenodo.200103 ebd0dce8-ee56-452e-a166-12130433ac7d 1175-5326 200103 Key to the males of Lopescladius (Cordiella) 1. Gonostylus with posterior elongation; inferior volsella spiniform or absent. Lopescladius s. str ...............(not keyed) - Gonostylus without posterior elongation; inferior volsella single or double, broadly digitiform, with or without api- cal hook. Lopescladius (Cordiella) Coffman et Roback ............................................................................................... 2 2. Anterior branch of inferior volsella lacking ( Coffman & Roback 1984, fig. 7 ). Pennsylvania, U.S.A. ........................ ......................................................................................................................... L. (C.) hyporheicus Coffman et Roback - Anterior branch of inferior volsella present.................................................................................................................. 3 3. Posterior branch of superior volsella with apical hook, projecting orally ( Figs 20–21 ). São Paulo State, Brazil .......... ...................................................................................................................................................... L. (C.) uncatus sp. n. - Posterior branch of superior volsella gently curved, projecting anteromedially .......................................................... 4 4. Small pale brown species, wing length 0.75–0.83 mm . Pará State, Brazil .................................. L. (C.) morosus sp. n. - Larger dark brown species, wing length 1.20–1.22 mm . Santa Catarina State, Brazil ............ L. (C.) vibrissatus sp. n.