Larvae Of The Winter Stonefly Genus Allocapnia (Plecoptera: Capniidae) In Mississippi, Usa Author Stark, Bill P. Author Lacey, Joe W. text Illiesia 2005 1 3 10 20 journal article http://doi.org/10.5281/zenodo.4754442 866eda6e-74f1-4508-85eb-974ffc7bdae8 1854-0392 4754442 Provisional Key for Larval Mississippi Capniidae ( A. polemistis unknown) 1. Apical cercal segments with vertical fringe of bristles along dorsal and ventral margins of each segment…………………….……. Nemocapnia carolina Apical cercal segment with terminal bristle whorls on each segment, vertical fringe absent ( Figs. 11-12 )……………………..……….……… Allocapnia , 2 2. Erect bristles, seen in lateral aspect, restricted to posterior margins of most abdominal terga ( Fig. 6 ) ……………………………………………….…..……..3 Lateral aspect of most abdominal terga with an additional erect or semi-erect bristle, or bristles, near midlength ( Fig. 32 ) …………………………………..4 3. Posterolateral aspect of developing male 10 th tergal margin truncate, dorsal margin straight ( Fig. 15 ) ……..……………………………….…… A. mystica Posterolateral aspect of developing male 10 th tergal margin slanted, dorsal margin with pre-apical elevation ( Fig. 5 ) …………………………….. A. aurora 4. Posterolateral aspect of developing male 10 th tergum bent upward in apical third; lobe portion of tergum 10 distal to cercal bases about twice as long as tergum proximal to cercal bases; longest erect tergal bristles about half as long as tergum ..….… A. rickeri Lateral aspect of developing male 10 th tergum straight on dorsum; lobe portion of tergum 10 distal to cercal bases no more than 1.5 times as long as tergum proximal to cercal bases; longest erect tergal bristles about 1/3 as long as tergum ….…………….5 5. Lateral aspect of developing male 10 th tergum slanted along posterior margin ( Fig. 31 ); longest tergal bristles almost half as long as tergum ( Fig. 32 ) …..………………………..………………. A. virginiana Lateral aspect of developing male 10 th tergum almost truncate apically ( Fig. 21 ); longest tergal bristles about 1/3 as long as tergum ( Fig. 22 ).…….6 6. Erect and semi-erect tergal bristles irregularly distributed along tergal length ………... A. granulata Erect and semi-erect tergal bristles restricted to apical and midlength positions ( Fig. 22 ). A. starki