80 PROCEEDINGS OF THE AMERICAN ACADEMY. 



one. Middle femora with 2-3 spines, the preapical long on the front 

 carina, the hind carina with a very long genicular spine and sometimes 

 an additional shorter one. Hind femora considerably more than twice 

 as long as the fore femora, about as long as the body, the upper margin 

 more arcuate than the lower moderately slender, about three and a 

 quarter times longer than broad, less than the apical fourth subequal, 

 the surface with no raised points, the outer carina with two or three 

 very feeble distant serrulations in the apical third ( ) or unarmed 

 (9), the inner carina with distant raised points, the intervening sulcus 

 narrow. Hind tibiae straight in both sexes, very slender, slightly 

 longer than the femora, armed beneath with 1-2 median spines besides 

 the apical pair ; spurs subopposite, the basal at the end of the proximal 

 fourth of the tibia or a little beyond it, usually fully twice as long as 

 the tibial depth, set at an angle of about 60 with the tibia and 

 divaricating about 130 (rather less in the 9), their tips incurved; 

 inner middle calcaria considerably longer than the outer, more than 

 twice as long as the others, about twice as long as the spurs and a 

 little longer than the first joint of the tarsi. Hind tarsi more than 

 two fifths as long as the tibiae, the first joint as long as the others 

 combined, the second more than twice as long as the third and with it 

 as long as the fourth. Cerci tapering throughout, but especially in the 

 basal half, nearly as long as the femoral breadth. Ovipositor fully 

 two thirds as long as the hind femora, straight, tapering strongly in 

 basal half, beyond equal and slender, the tip strongly upcurved and 

 very acute, the teeth aculeate, arcuate. 



Length of body, $ 11 mm., 9 14 mm.; pronotum, 3.3 mm., 

 9 4.25 mm. ; fore femora, $ 4.5 mm., 9 5 mm. ; hind femora, $ 10.5 

 mm., 9 11 mm.; hind tibiae, $ 11 mm., 9 H-4 mm.; ovipositor, 

 7.5 mm. 



4 <J, 5 9- Lincoln, West Point, and Chadron, Dawes Co., Nebr. 

 (L. Bruner, Corn. Univ.) ; Sedgwick Co., Kans., S. S. Tucker (Univ. 

 Kans., through L. Bruner) ; Gulf Coast of Texas, S. F. Aaron. Os- 

 born also reports it from Iowa. 



Mr. Bruner has also sent me from Carrizo Springs, Texas, two 

 males of a much larger size, in which the body is almost com- 

 pletely infuscated, so that the markings of the thorax cannot or can 

 scarcely be seen. The following measurements are taken from one of 

 them: length of body, 16.5 mm.; pronotum, 5.5 mm.; fore femora, 

 6.9 mm. ; hind femora, 15.5 mm. ; hind tibiae, 16.5 mm. 



