1910.] NATURAL SCIENCES OF PHILADELPHIA. 415 



transversely arcuate and with lateral portions less deflected; sulci 

 not evident. Tegmina subquadrate, reaching to the base of abdomen, 

 attingent mesad ; costal margin slightly arcuate, distal margin slightly 

 oblique sinuato-emarginate, apex broadly rounded and costal in 

 position. Wings almost as long as tegmina. Supra-anal plate 

 transverse trigonal, more or less carinate mesad, apex obtuse-angulate 8 ; 

 cerci depressed fusiform, apex acute. 



General color uniform shining pitch black, tegmina occasionally 

 somewhat approaching bistre and very rarely burnt umber. Limbs 

 colored as in male, with same exception occurring in the case of one 

 specimen. 7 



Measurements. — d\ Length of body 14-15 mm; length of prono- 

 tum 3.5-3.8 mm.; greatest width of pronotum 4.8-5 mm.; length of 

 tegmen 16-18 mm.; greatest width of tegmen 4.8-5.6 mm. 



9 . Length of body 12.5-17.5 mm. ; length of pronotum 3.9-4.5 mm. ; 

 greatest width of pronotum 5-6.5 mm.; length of tegmen 3.5-5.8 

 mm.; greatest width of tegmen 3-4 mm. 



Distribution.— This species is now known from localities extending 

 from southern Florida (Miami) north to southern Pennsylvania 

 (Wayne and Enola) and northern Indiana (Marshall County), west to 

 eastern Kansas (Douglas County) and south to Texas. The only exact 

 datum for the latter State is the capture of one specimen at Paris in 

 the northeastern portion of the State. From the known records the 

 species appears to be an inhabitant of the Upper and Lower Austral 

 Zones. 



Remarks. — The males of this species from a number of localities 

 are uniform in size and coloration, although the ulnar vein of the wing 

 is variable in the number of complete and incomplete rami which it 

 bears. The femalas vary considerably in size, but there appears to be 

 no correspondence between this and locality. The largest specimens 

 are from Raleigh, N. C, and Miami, Fla., the smallest from Raleigh 

 and Jacksonville, Fla. 



The mature specimens were taken or bred out on date in May, June, 

 July and August, the only specimens taken the latter month being 

 from Miami, Fla. The immature specimens were secured in March, 

 April, May and September, the last month being represented by one 

 specimen taken at Sulphur Springs, N. C. 



Specimens examined. — Thirty-nine; fourteen males, twenty females 

 and five immature specimens. 



B Rarely by aberration sinuato-emarginate. 

 7 This is also from Indiana. 



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