SUBFAMILY VII. RHAPHIDOPHORIXJS. 613 



reddish-brown. Dorsal segments of abdomen with numerous small scat- 

 tered prickles or nodules. Subgenital plate of male deeply impressed but 

 not cleft; the lobes much swollen at middle, apex feebly notched. Ovi- 

 positor short, very stout at base, 

 strongly tapering to middle, sub- 

 equal beyond, the apex of outer 

 valves obliquely excised, ending 

 above in s, sharp spine; lower 

 valves armed beneath with four 

 slender, unequally spaced teeth, 

 < ' and a slender decurved terminal 



Fig. 206. Female. X i-3- (After Lugger.) hook Length of body, $ and 



$, 1826; of pronotum, 69; of hind femora, 1423; of hind tibiae, 16 

 20; of ovipositor, 6.58 mm. (Fig. 206.) 



Tliis, our most robust camel cricket, varies greatly in color 

 and size and has therefore been described under nine different 

 names. It ranges from eastern Illinois north and west to Sas- 

 katchewan, Idaho and Utah and south and west to Kansas, Texas, 

 New Mexico and Pasadena, Cal. The more eastern individuals 

 are mostly of the black variety, U. niyni Scudd. (1862a, 284 I. 

 Specimens of this form are in the Urbana collection from numer- 

 ous points in Illinois (Hart & Malloch Ms.) while the brown form, 

 typical robust a, was also taken at Havana, 111., by Hart from be- 

 neath logs. Bruuer (1886) says of its habits: "This 'cricket' is 

 generally to be seen running rather sluggishly over plowed fields 

 and along old roads on cloudy days or during early morning or in 

 the evening just before sunset. It is nocturnal in habit and lives 

 singly in burrows which it digs in the loose soil. 



Caudell (1916) first placed the different forms of UdcopsyTla 

 under one species and in addition to U. nigra placed the following 

 as synonyms of U. robust a ; Marsa u remit u F. Walker (1861), 254), 

 Udeopsyllu coinpacta Brunei" (1891, 38), Geutlioplillns nitfcr 

 Scudd. (1862, 437), C. derins Scudd. (1894, 99), C. politus and (7. 

 ater Scudd. and Cock. (1902, 56, 57) and Dnllilnia f/if/anfra Brunei' 

 (1885, 127). The forms U. niyra and U. derins represent color 

 varieties and may be thus labelled if the student so desire. 



IV. CEUTHOPHILUS Scudder, 1862, 433. (Or., "to hide" + 



"to love.") 



THE CAMEL OR STONE CRICKETS. 



Wingless Tettigoniidte of medium or large size with a thick 

 body and arched back ; head large, oval, bent downward and back- 

 ward between the front legs; antenna? long, slender, cylindrical, 

 tapering to a fine point; eyes subpyriform, the narrow end down- 



