1916.] NATURAL SCIENCES OF PHILADELPHIA. 261 



caudal femur, heavy proximad and tapering gently, and with a very 

 weak dorsad curvature, to the sharp, unarmed apex. Subgenital 

 plate large, lateral margins produced in long, slender spines which 

 are subparallel and lie along the shaft of the ovipositor. General 



color brown with black markings as in the type. 



Ten parat ypic males bearing the same data as the type are before us. 



Measurements {in millimeters). 



type. Paratypic Allotype. 



d 1 o" o* 9 



Length of body 34.3 32.9-40.3 36 



Length of vertex 3.8 3.7-4.5 4.1 



Vertex from tooth to apex 2.6 2.6-3.6 3.4 



Length of pronotum 8.3 7.9-8.9 8.1 



Length of tegmen 6 5.6-7.1 2.3 



Length of caudal femur 16.4 16.7-18.8 Is I 



Length of ovipositor 19.2 



As in the other species of the genus of which we have a number 

 of specimens, a considerable amount of size variation is present in 

 this insect. There is also a decided amount of variation in the shape 

 of the supra-anal plate in the above examples, though material of 

 sit ighti and sabalis is constant in this respect, and, although in none 

 of the paratypes is the median emargination as deep as in sleiejhti, 

 the form. of this emargination, and of the lateral productions thus 

 formed, is in one of the paratypes similar to the type found in that 

 species, and in several others is intermediate in character. 



Four male paratypes and the female allotype are of the brown color 

 phase, the other six specimens, male type and paratypes, are green. 



The males were taken at night by Dr. Bradley, when they 

 were found in numbers stridulating in the undergrowth of the pine 

 woods. 



Iii addition to this material we have before us a dried alcoholic 

 pair taken by R. A. Mills at Chuluota, Florida, and now in the United 

 States National Museum. 



Pyrgocorypha uncinata (Harris). 



Arkansas. Georgia. 



Bol Springs, IV, 1906, (C. S. Hebard), Thompson's Mills, IX, 1909, (H. A 

 1 <?, [Hebard Cln.]. Allan! >, 1 9 , [U. S. X. M.]. 



Bainbridge, (J. C. Bradley), 19. 



The specimen from Hot Springs was taken in a hotel where it had 

 been attracted by the lights at night, with it several examples of 

 \ i oconocephalus triops (mexicanas of most authors) were taken. 

 18 



