136 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



Somewhat smaller than robustus and rather stouter than 

 ensiger. The cone of the vertex is short, with the sides nearly- 

 parallel and the front obtusely rounded; the apex beneath dis- 

 tinctly tipped with black. Nearly half of the specimens taken 

 are light brown. 



Measurements. 



This species was first taken near New Haven in 1902,* and 

 that was the first record of the occurrence of a native specimen in 

 New England. In 1904 it was fairly common in this vicinity, 

 seven specimens being taken at one time in the tall grass along 

 a ditch which contained water only in very wet seasons. 

 New Haven, 29 August to 3 October, Westville, 19 September 

 (B. H. W.). 



Xiphidium Serville. 



The insects of this genus are our smallest winged locustids. 

 Head with the face rounded, somewhat oblique, and with rather 

 large roundish eyes. Vertex extends forward and slightly up- 

 ward in the form of a rounded tubercle. Prosternal spines very 

 short and weak. Tegmina narrow and straight, the length 

 variable, but usually shorter than the abdomen. Wings usually 

 not reaching the tips of the tegmina. Calling organs of male 

 well developed, light brown in color, the middle transparent. 

 Hind femora swollen at base, of medium length. Ovipositor 

 slender, nearly straight, rarely slightly upcurved. Cerci of male 

 swollen, with a basal tooth on the inner margin. The length 

 of the wings and the color are quite variable in the members of 

 this genus. 



Key to Species. 



1. Ovipositor shorter than the body 2 



Ovipositor as long as the body ensiferum 



2. Body very slender, wings slightly exceeding the teg- 



mina, which are fully developed and longer than the 

 abdomen fasciatum 



* Psyche, Vol. XI, p. 23, 1904. 



