19581 Adams — Protoperlaria and Endopterygota 123 
It is interesting- to note, while reference is being made 
to the figure of the thoracic sterna of T aeniopteryx , the 
occurrence of openings of coxal glands (CxGl) on mem- 
branous areas of each coxa. Similar membranous areas 
occur on the hind coxae of Stalls, Neohermes, Corydalus, 
and Chauliodes, but in none of these insects has it been possi- 
Figures 12-15. 
Figure 12. Pteronarcys calif ornica (Plecoptera) . Base of right anterior 
wing. Figure 13. P. calif ornica . Base of posterior wing. Figure 14. 
Neohermes calif ornicus (Walk.) (Megaloptera). Base of anterior wing. 
Figure 15. N. calif ornicus . Base of posterior wing. 
