SUBFAMILY II. OKKIL'ODINMO. 297 



beaches of broad tidal estuaries, usually associated with Psiniil'm 

 in areas characterized by the presence of the sand-bur, GencJirus 

 fribitloidi.'s L. Inland it appeared to be of frequent though some- 

 what local occurrence, inhabiting open sandy fields and foot-paths 

 and appearing to avoid locations where there was any consider- 

 able cover of vegetation." 



128. TRJMEROTROPIS SAXATILIS McNeill, 1901, 440. Rock-loving Locust. 



Size medium, form relatively slender, strongly compressed, the males 

 distinctly the smaller. Color extremely variable, usually gray, bluish-green 

 or brown, strongly marked with fuscous. Occiput fuscous with gray mark- 

 ings; face gray, speckled with brown or fuscous dots; antennae fuscous, the 

 basal joint yellow. Pronotum with metazona and hind portion of lateral 

 lobes usually dull yellow; prozona and front part of lobes largely fuscous 

 with pale spots. Tegmina gray, usually with three very distinct fuscous 

 cross-bars; apical third hyaline, mottled with fuscous dots. Wings with 

 basal third pale yellow, the curved fuscous band rather broad, its greater 

 width one-fourth to one-fifth the length of wing, apex hyaline with a few 

 small dark spots. Front and middle femora annulate with dull yellow and 

 fuscous. Outer face of hind femora trifasciate with fuscous; inner face 

 largely black with two yellow cross-bars. Disk of vertex distinctly longer 

 than broad, median carina evident but faint, sides low, moderately converg- 

 ing; foveola? distinct, triangular, large for the genus. Frontal costa deeply 

 sulcate nearly throughout, less so at junction with vertex. Prozona about 

 two-fifths the length of metazona, median carina very low; hind margin ot 

 metazona rectangular or nearly so. Wings less than twice as long as broad. 

 Length of body, ,5, 18.522, $, 2328; tegmina, $, 2223, 9, 2527; of 

 hind femora, $ and 9 , 11 13 mm. 



Union County, Til., July I'l. (M<-\ciU}. As its specific name 

 indicates this is a saxicolous or rock-frequenting species, ranging 

 from southern Illinois west to Arkansas and Oklahoma, and south- 

 east and south to the mountains of North Carolina and Georgia. 

 Of its occurrence in Illinois Hart (190<;, 7!)) says: "Restricted to 

 the larger sandstone ledges of the Ozark hills in southern Illinois, 

 the insects closely imitating the lichen-covered rock surfaces on 

 which they rest." 



Morse, who has traced its range more closely than anyone else, 

 says (19(17, 40) : 



"T. saxatiliN has been taken only on rock surfaces, sometimes lichen- 

 crusted, sometimes bare and sun-scorched, either wholly unprotected from 

 sun and storm or amid a considerable growth of forest which has sprung up 

 since the station was colonized by the locust. In color and markings it so 

 closely resembles the background of its habitat as to be indistinguishable 

 therefrom when at rest. It is a sluggish, unsuspicious species, flying but a 

 short distance when disturbed, often with a distinct but relatively faint 

 crepitation, and is easily captured. On July S adults of both sexes were 

 numerous, on Sand Mountain, Ga., the males actively searching for and at- 



