| OCR Text |
Show 204 occurring rounded costal projection the bases segment ture (Fig. 132). one of a from those on on broadened (Fig. 124). as a s.s. and Edmunds of subgenus as latter the two segments Gills lamella, Of nine subgenus, in struc differing (Figs. 123-124); and apical extensions (1964) placed the genus thus of Euthraulus establishing Choroterpes Only Choroterpes. this in North Amerlca. North American one abdominal on Subgenus Choroterpes Eaton this genital the subgenus occurs the small a with seven Choroterpes nominal subgenus to (2) and succeeding segments (2) gills Peters (1) linear wings having appendages arising from slender Nymphs. single Hind (Fig. 122); without male the forceps of (1) Adults. in Idaho: species, s.s. to species presently assigned C. albiannulata McDunnough occurs in Idaho. Choroterpes (Choroterpes) albiannulata McDunnough (Figures 121-124, 132) Choroterpes albiannulata McDunnough, McDunnough (1924b) imago collected As Edmunds in the (1952b), described 1924b:22l. this specie from a male in Alberta. case the of the adults specimens reported from Utah by from Idaho do not fit in |