OCR Text |
Show APPENDIX C- INSECTS. 871 two, the intermediate ones being evanescent. In the former, the first and second ( from the fold) unite at the margin, but in the latter, the evanescent line representing the second reaches the margin parallel to the first nervure. ORTHOPTERA. EPHIPPIGKRA Tf rvAVENSis, Hald. Pi* X. PIG. 8. Robust, dull brown, beneath yellowish; head rough, antennae deep set, filiform, shorter than the pronotum, inserted opposite the lower canthus of the eyes, upon each side of a double vertical frontal carina; labrum transverse, and with the palpi flavous. Pronotum ample, coarsely scabrous, blackish, changing to yellowish posteriorly; elytra and wings rudimentary, the former gray, mottled with black. Inside of the posterior femora and tibiae black, the former interrupted near the apex. The posterior tibiae have a row of spines upon each above. Length fifteen, antennae six, pronotum seven, width four and a- half, elytra four, posterior femora seven, and tibiae seven lines. Chihuahua. ( EDIPODA CORALLIPKS, Hald. PL. X. Fio. 2. Yellowish- gray, conspicuously varied with brown, mostly in blotches, and upon the elytra and exterior side of the posterior femora. Vertex and pronotum scabrous and dark brown, the latter margined with flavous, its surface nearly flat, and the medial line but little raised. Angle of the elytra marked with a yellow line; a narrow line upon the internal margin. Wings bright yellow, margined with black. Inside of the posterior femora, tibiae and tarsi, bright vermilion, a paler tint extending to the outside of the tarsi and lower half of the tibiae. Length twenty- four lines, ( two and a- half inches,) pronotum five, posterior femora ten, and tibiae nine lines. This fine large grasshopper is probably the species which has been destructive to vegetation in the Valley of the Great Salt Lake. It is nearly as large as the destructive ( Edipoda migrar toria, ( with which it is congeneric.) The last- named species is known under the English name of migratory locust. |