170 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



form,in all probability, does not belong to the genus Cephenomyia. 

 At any rate Clark's description and the notes by Brauer show that 

 it is entirely distinct from the form described in this paper. 



Brauer 1 described a larval Cephenomyia obtained from Cervus 

 m,acrotis in North America (not named in body of work but referred 

 to as C. macrotis in index) and also recorded 2 the larva of Cephen- 

 omyia ulrichii Brauer from an American elk. Both of these 

 forms are quite distinct from our species. Brauer also listed 

 Cephenomyia sp. from "Durango." 3 The remaining American 

 records of Cephenomyia are two notes in Insect Life, concerning 

 the finding of larvae in hogs in Virginia 4 and in man and deer 

 in California. 5 The California specimens from the deer have 

 been examined by the writer. They appear to be the same as 

 the form described in this paper. The specimens from man are 

 immature and cannot be determined. 



Cephenomyia pratti n. sp. 



Male. Ground color everywhere shining black. Pile of body light 

 yellowish white except a few hairs between the antennae and the eye mar- 

 gins, a broad band extending across the dorsum of the thorax, and the 

 first three abdominal segments which have black pile. The pile of the legs 

 is black except a white tuft at the base of the inner side of all the femora. 

 Length 13 mm. 



Female. Ground color shining black as in male, no pulverulence. Pile 

 of head light yellowish white except between the base of the antenna 1 

 and the eyes. Pile of thorax and scutellum whitish except for a broad 

 black transverse band between the bases of the wings. This band is in- 

 terrupted in the middle by yellowish hairs. Pile of first three abdominal 

 segments bright ferrugineous, of remainder whitish. Pile of legs black, 

 except white tufts at bases of inside of all femora. 



Eye margins converging toward vertex. Antennse black, arista dark 

 brown. Wings black at extreme base, otherwise hyaline, veins brown. 

 Venation typical for genus. Teguke whitish, very narrow margin brown. 

 Legs black, posterior femora and tibiae slightly brownish. Claws black. 

 Pulvilli whitish. Length 13 mm. 



Described from two specimens, Sabinal, Texas, November 

 and December. 



Host: Cervus virginianus texanus. 



Type: Cat, No. 19966, U. S. National Museum. 



The name is in honor of the late F. C. Pratt. 



1 Monographs der Oestriden, pp. 211-212. 

 2 L. c., p. 202. 



3 Die zweifliigler des kais. Mus. Wien. Ill, p. 82, 1883. 



4 III, p. 151. 



5 II, p. 116. 



