152 ORTHOPTEROUS GROUP INSARAE 



mina with only the immediate proximal section of the general 

 color, the remainder of the tone described above; distal portion of 

 the stridulating field of the male more primuline yellow to old gold, 

 the proximal section of the field almost always contrastingly 

 colored with green, ranging from light yellow green to cedar green, 

 rarely uniform with the adjacent pronotal disk; the vicinity of the 

 anal vein in the male decidedly infuscate with madder brown to 

 hessian brown, vicinity of the anal vein in the female similarly but 

 less decidedly infuscate. Abdomen with the dark element of the 

 pattern occasionally blackish brown; dorsum of the abdomen be- 

 tween the lines of the pattern occasionally punotulate as in phalan- 

 gium. Limbs as in phalangium. 



Distribution. — The present species has a rather limited range, all 

 within the state of Texas and almost entirely in the east central 

 part of the state. It ranges from as far north as Dallas, south at 

 least to Victoria, east to Rosenberg, and west as far as Shovel 

 Mount, Burnet County. Vertically it ranges from near sea-level 

 at Victoria and Rosenberg to the vicinity of a thousand feet ele- 

 vation on the edge of the Edwards plateau at Shovel Mount. 



Biological Notes. — According to Scudder the present species is 

 frequently attracted to lights, while Caudell took it flying in open 

 prairie, where it usually made short flights, as a rule never more 

 than fifty to one hundred yards. Our experience with the species 

 has been much the same as that of the latter author, as we found it 

 at Victoria and Rosenberg more or less common in fields which were 

 thickly overgrown with grasses, low plants and even knee-high 

 weeds, occasionally with patches of taller plants such as coffee 

 bean {Seshan ?nacrocarpa) and huisache (Vachellia farnesiana) 

 bushes as high as twelve to fifteen feet. Here the insects were very 

 easy to secure, as they would climb up for about two feet in the 

 higher weeds and, when approached, would flutter up and with teg- 

 mina and wings set and legs extended permit the wind to carry 

 them. They rarely drifted more than a few feet, were easily picked 

 up and appeared incapable of quick motion. 



Adults, according to Scudder, were taken by B elf rage as early as 

 May (exact date unknown), while the earliest date on the material 

 before us is June 21. The latest date known is August (ex Scud- 

 der), the latest on our material is July 26 (Victoria). On the latter 

 date the species was unquestionably at its prime, as it was ex- 



