| OCR Text |
Show FAMILY HEPTAGENIIDAE Only basis of the gengs of one this-'famHy'-was unpublished distribution some of University Utah The The or the in their I t er's longer than nymphs the to second the have represented only by two a but the on in specimens on that expected , and Heptagenia a 1881 single species of the this genus from other copra._9.bso1ete; se'gme1;lt o£ costal fore subgenus , the bullae attached only basal simple; area is based collection from Hondu r as basad of veins attachment stigmatic The represented by wr frr-Hondur-as records Eaton Eporus f0lowing i11 distinguish cosia1 css costa, the is v in Honduras. Genus This genus it collection, .be found Rhithrogen,a wll Iron Ea t on fourrd Heptageniidae. to cross tarsi of the sub in veins male long as segment. tails short only, the median caudal filament being remnant. Distribution Pa1earctic &nd Nearctie and entering the ontane Neotropica1, south to Guatemala and Honduras. Central American records' _?pcies ,from of this gens has ever south of Arizona and New Mxco. describing in the a species new University All of the of from Mexico been repotted in the literature Dr. (in J. Traver press), and is at there present are specimens Utah collection from Guatemala. nymphs found by the writer were of one type that can be |
