424 PROCEEDINGS OF THE ACADEMY OF [June, 



Bronson, Bainbridge, Raleigh, Mexico City, 

 Fla. Ga. N. C. Mex. 



cf 9 d' 9 9 



Length of body 11.1 12. 7.9 7.6 7.7 



Length of pronotum 2. 2.4 1.7 1.8 1.6 



Caudal width of prono- 

 tum 2.9 3.5 2.4 2.4 2.1 



Length of tegmen 6.8 8.4 4.8 4.2 2.6 



Length of wing 14.7 17.6 



Length of caudal femur 7.9 8.9 6.3 6. 5.2 



Greatest width of caudal 



femur 2.6 2.7 2. 2. 2.1 



Length of ovipositor 8.9 5.4 5.2 



The series from Thomasville, Ga., is typical oi fasciatus socius and 

 shows the considerable variabihty in size found in a series of this 

 geographic race from a single locaht}^ The specimens from Dallas, 

 Tex., average larger than any series before us from east of the Appala- 

 chians, but the male specimen from Bronson, Fla., and the female 

 from Bainbridge, Ga., show that the largest individuals from the east 

 considerably exceed in size those from Dallas, Tex. The majority 

 of specimens before us from Raleigh, N. C, are of average size, but 

 the series contains some of the smallest specimens of fasciatus socius 

 before us, and the measurements of these are given above to show that 

 extreme of the race. 



Color Notes. — Specimens from the south Atlantic and Gulf coasts 

 which were taken in damp or marshy situations are without exception 

 very dark brown in coloration. Those from the undergrowth of the 

 pine woods in the south Atlantic States are frequently cinnamon or 

 russet in general coloration, while some of the males taken under such 

 conditions have the markings of typical fasciatus very conspicuous. 

 Individuals taken at various places in the semi-dry interior of Texas 

 are quite as pale as these, but are not so tawny and the males do not 

 have the darker markings so well defined and conspicuous. As in 

 fasciatus, the occipital bars are absent in all very light or very dark 

 specimens while most conspicuous in those which are slightly lighter 

 than the average. 



Distribution. — This geographic race is found over the southeastern 

 United States, the northern limit of distribution being defined by the 

 fall line. West of the Appalachians it is found from the Gulf of 

 Mexico northward to Tennessee, Arkansas, and Oklahoma. These 

 northern limits marking the line of intergradation into typical 

 fasciatus. The most western localities at which fasciatus socius has 



