ONH Insects - Nisquallia olympica Identification

Nisquallia olympica Identification

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1 - Left: Rehn Fig. 1 caption "Male (allotype) Lateral outline of fastigio-facial angle (greatly enlarged)”
Right: Photo taken at a comparable angle and enlargement.
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2 - Left: Rehn Fig. 2 caption “Male (allotype) Dorsal view of fastigium (greatly enlarged)”
Right: Photo taken at a comparable angle and enlargement.
fig4male
3 - Left: Rehn Fig 4 caption “Male (allotype) Aedeagus in caudal aspect (greatly enlarged)”
Right: Photo taken at a comparable angle and enlargement.
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4 - Left: Rehn Fig. 7 caption: “Male (allotype). Mount Ellinor, Mason County, Washington. Cephalic view of head (greatly enlarged)”
Right: Photo taken at a comparable angle and enlargement.
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5 - Male abdomen, dorsal view, showing the shield-shaped supraanal plate with no furculum (a forked projection overlying supraanal plate in some grasshopper species), as described in Hilfer, p. 195.
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6 - Male abdomen, dorsal view closeup, showing the shield-shaped supraanal plate with no furculum (a forked projection overlying supraanal plate in some grasshopper species), as described in Hilfer, p. 195.
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7 - Male abdomen, lateral view, showing the shield-shaped supraanal plate.
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8 -Left: Rehn Fig. 10 caption “Female (type). Mount Ellinor, Mason County, Washington. Cephalic aspect of head. (greatly enlarged.)”
Right: Photo taken at a comparable angle and enlargement.
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9 - Female ovipositor, dorsal view of the ventral ovipositor valves, showing two teeth on each lower valve and the “excavate” surface of the valves. 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,...”
ovipositor
10 - Lateral view of one ventral ovipositor valve, showing the tooth. Helfer: “ovipositor with tooth near base of lower valve”

The identification characteristics we present here come from “Two New Melanoploid Genera (Orthoptera: Acrididae: Cyrtacanthacridinae) from the Western United States,” James A. G. Rehn containing the original description of the new genus and species Nisquallia olympica and the description in How to Know the Grasshoppers, Crickets, Cockroaches and Their Allies, p. 195, by Jacques R. Helfer. Identification was confirmed in 2012 by Tim McNary, USDA-APHIS, who compared specimens we collected in Olympic National Park (with a permit) to the description in Rehn.
(Thanks to helpful folks on bugguide.net for the initial tip on indentification.)

“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 Available to read onlline with a free account.)

Jacques R. Helfer, How to Know the Grasshoppers, Crickets, Cockroaches and Their Allies, p. 195 Wm. C. Brown, 1963 (republished in 1987 by Dover)

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