Ko. 1869. NEW SPECIES OF WASPS -ROHWER. 455 



FamUy MUTILLID^. 



Genus PYCNOMUTILLA Ashmead. 



This includes Fox's groups waco and asopus. It is closest to 

 Dasymutilla Ashmead, being separated by the tridentate mandibles 

 and normally diiTerent conformation of the pygidium. The male have 

 the tarsi with fewer spines. 



PYCNOMUTILLA HARMONL^ (Fox). 



A pair, supposed to be taken in copula, brings to the light the male 

 of this species known, heretofore, only from the female. The specimens 

 were taken by Mr. A. H. Manee, Southern Pines, South Carolina, 

 September 1, 1907. 



The male belongs to group asopus of Fox, and in his table runs 

 to hexar (Blake) , but may at once be distinguished from that species 

 by the absence of a carina on the second ventral segment, and the 

 larger and (seen from side) more strongly nodose petiole. The carina 

 of the first ventral segment is nearly straight, being only slightly 

 arcuate. 



Superficially the male is like Dasymutilla castor (Blake), but as Mr. 

 Fox places this in the group of bidentate mandibles it can not be that. 



The female, which is rather rubbed, differs from the typical form 

 in the markings of the second dorsal segment being wanting and the 

 absence of black hair on same segment. 



PYCNOMUTILLA HARMONHFORMIS, new species. 



Male. — Length 12 mm. Differs from liarmonia (Fox) in the carina 

 of the first ventral segment being produced into a sharp tooth beneath; 

 and the first segment (seen from the side) not nodose. The first seg- 

 ment is rufo-feiTuginous. 



Lyme, Connecticut. One male collected Jul}' 31, 1910, by Mr. 

 A. B. Champlain. 



Type.—Coii. No. 14123, U.S.N.M. 



PYCNOMUTILLA BOULDERENSIS (Rohwer). 



Ephuta boulderensis Rohwer, Tran. Amer. Ent. Soc, vol. 35, 1909, p. 133. 

 Type.— C&t. No. 14120, U.S.N.M. 



PYCNOMUTILLA SPARSIFORMIS (Cockerell and Rohwer). 

 Ephuta sparsiforviis Cockerell and Hohwer, Psyche, 1908, p. 4. 



Genus DASYMUTILLA Ashmead. 

 This is Fox's ^ group occidentalis. 



1 Trans. Amer. Ent. Soc, vol. 25, 1899, p. 230-249. 



