Soliperla Larvae

Stark, Bill P., Sandberg, John B. & Lee, Jonathan J., 2017, California Soliperla Ricker, 1952 (Plecoptera: Peltoperlidae), Distribution And Taxonomic Characters, Illiesia 13 (7), pp. 82-93 : 91

Preliminary Key to California Late Instar Soliperla Larvae

1 Abdominal terga 4-6 typically with elongate, pale median spot ( Fig. 15 ); known from Plumas and Sierra counties ……………………… S. sierra

1’ Abdominal terga 5-6 typically with variably shaped, pale median spot ( Fig. 16 ); widely distributed in Coast Range and at scattered sites in the Sierra Nevada; uncommon in Plumas and Sierra counties ...………………..……………….. 2

2 Median pale spot on abdominal tergum 6 almost as large as median pale spot on abdominal tergum 5 ( Fig. 16 ); median spots on terga 5-6 usually elongate ……………… S. thyra

2’ Median pale spot on abdominal tergum 6 less than half as large as median spot on abdominal tergum 5 ( Fig. 14 ); median spots on terga 5-6 often bell or triangular in shape ….………………………………… S. quadrispinula

Figures

Figs. 14-16. California Soliperla larval abdominal color patterns, segments 2-10. 14. S. quadrispinula, California, Humboldt Co., Grassy Creek. 15. S. sierra, California, Sierra Co., Big Springs. 16. S. thyra, California, Glenn Co., Salt Creek.