Ld. Brown et Bp. Stark, NYMPHS AND EGGS OF ALLOPERLA-NATCHEZ AND HAPLOPERLA-CHUKCHO (PLECOPTERA, CHLOROPERLIDAE), Journal of the Kansas Entomological Society, 68(1), 1995, pp. 120-125
Eggs and late instar nymphs of two endemic Mississippi stoneflies, All
operla natchez Surdick and Stark and Haploperla chukcho (Surdick and S
tark) are described. Nymphs of both species are pale brown with obscur
e pigment patterns and eggs are elongate oval with short stalked colla
rs.