| OCR Text |
Show 69 the and oriental, the montane entering Neotropica1 to Guatemala. Cent1!aL:,American records . Ul!llr (1919) described described in the Genus specimens expected from_,!'1exico. by Kim!D!I_? (1934) from exico!",,_ There Guatemala and Mexico No mexicana that University Rhithrogena this genus of it w±ll occur, were as,there of nymphs was from Utah Collection. Eaton 1881 collected are are sa1vini in nymphs Honduras, but in it is the University of Utah collection from Guatmali;. the fact The enlarged caudal as the that the nymphs and can be distinguished from other vein in the area this genus Adults of cross have the gills meeting beneatq filaments are present, of the stigmatic the first and b9dy to form a th median caudal are seventh genra by anastomosed. segments sucking disc; three filament being as Neotropica1 to cerci. ,Distribution Palearctic and Nearctic, entering the montane Guatemala. Central American records Undeseribed Guatemala and are nymphs of this genus have been collected from in'the University of Utah Collection long |