JAMES CHESTER BRADLEY 329 



1912. Dasymittilln coloradella virginica Rohwer, Proc. U. S. Nat. Mus., 41: 



459, 9. 



1912. Dasymutilla segregata segregata Rohwer, Proc. U. S. Nat. Mus., 41 : 459, 



9. 



1912. Dasymutilla segregata finni Rohwer, Proc. U. S. Nat. Mus., 41:459, 



9. 



1912. Dasymutilla champlaini Rohwer, Proc. U. S. Nat. Mus., 41: 461, 9 . 



1912. Dasymutilla Carolina Rohwer, Proc. U. S. Nat. Mus., 41 : 462, 9 . 



The eastern specimens of vesta differ from the western ones by 

 being much less pubescent and lacking the upright sparse white 

 hairs. As this difference is apparently a constant geographical 

 one, it may be recognized as an eastern race, under the name 

 zella bestowed upon it by Mr. Rohwer. 



The species is very variable in the form of its petiolar carina. 

 Typically this is bidentate, but the posterior tooth may be re- 

 duced or wanting, thus approaching the condition found in 

 ferrugata. There is, however, in vesta almost always a remnant 

 of the carina on the posterior part of the petiole, wanting in 

 ferrugata, and the anterior tooth while of a somewhat variable 

 shape, is not a definitely shaped, acute, recurved tooth as in 

 ferrugata. 



I have examined the types of the seven species and varieties 

 listed above, and find them all variations of vesta. Carolina is 

 based on a single specimen with abbreviated striation of the 

 pygidium, but I can only look upon it as abnormal in this respect. 



The species is rather common in the Carolinan and Austro- 

 riparian zones from Massachusetts and eastern New York to 

 Georgia. In South Georgia and Florida it is largely, if not 

 entirely, replaced by the very closely allied sappho, which may 

 indeed be only a race. 



As suggested by Fox, vesta is probably the female of macra. 

 Both, especially the male, were represented in greater numbers 

 than I would have expected in the collections made by Mr. Banks 

 in eastern Virginia. 



Mutilla (Dasymutilla) macra (Cresson), cf . 



New York: Amagansett, Long Island, August 10, 1912, 1 cf , [Brooklyn 

 Museum]; Sea Qiff, July, 1 c?', (N. Banks), [N. Banks]. New Jersey. 

 M.\ryland: Great Falls, July 13, 1 cf, (N. Banks), [N. Banks]. Virginia: 

 Glencarlyn and Falls Church, July 12, to September 14, 22 o^, (N. Banks and 

 G. M. Greene), [collections of same.]. North Carolina: Southern Pines, 



TRANS. AM. ENT. SOC, XLII. 



