Nisquallia olympica Genitalia

1. male abdomen showing the shield-shaped supraanal plate with no furculum (forked projection overlying supraanal plate), as mentioned in Hilfer
supraanal plate another view

2. male abdomen, side view,
supraanal plate highlighted, dorsal and side views

3. sperm-transfer tube (aedeagus) dissected, with Rehn's Figure 4 “Aedeagus in caudal aspect”

4. female abdomen and genitalia, showing all four ovipositor valves

5. dorsal (proximal) aspect of both ventral ovipositor valves, showing two teeth on each lower valve and the “excavate” surface of the valves

6. lateral aspect of one ventral ovipositor valve, showing tooth

Helfer: “ovipositor with tooth near base of lower valve”

Rehn: “ventral ovipositor valves with their apical sections relatively slender, but moderately decurving, their ventral surface much excavate, the proximolateral tooth relatively strong and angulate, its complementary one on the internal margin smaller but evident,...”

 

“Two New Melanoploid Genera (Orthoptera: Acrididae: Cyrtacanthacridinae) from the Western United States” James A. G. Rehn, Transactions of the American Entomological Society (1890-), Vol. 78, No. 2 (Jun., 1952), pp. 101-115. (See JSTOR link)

Jacques R. Helfer, How to Know the Grasshoppers, Crickets, Cockroaches and Their Allies, Wm. C. Brown, 1963 (republished in 1987 by Dover)