■ i8o- 



A New Species of Haematobia. 



li\ S. W. WiLLISTON, M. D. 



H/EMATOBIA CORNICOLA, Wiu,. 



a) Egg: b) Imago; c) Head from side; dj Mouth parts. 



Haematobia cornicola n. sp. 



? //. si'rrata Roliitieau Desvoidy, Myod., 389. ^France. 

 (^. Length, 3^—4 mm. Sides of the front gently- concave, in its narrowest 

 width about equal to one-fourth the length of the front from the foremost ocellus to 

 the base of the antennae ; in the middle a narrow, dark brown stripe ; a single row 

 of slender bristles on each side. AntenniB brownish red ; second joint slightly tumid; 

 third joint a little longer than broad, with it.« inferior angle rectangular ; arista swollen 

 at the base (which is black ) ; the pectinations long. The narrow sides of the front, 

 and the still narrower facial and genial orbits, silvery gray, with a slight yellowish 

 cast ; facial foveae and cheeks blackish, the latter clothed with yellowish hair. Palpi 

 black, the inner surface and immediate base more yellowish ; gently spatulate in 

 shape, nearly as long as the proboscis, and extending two-third of their length beyond 

 the oral marijin. Mesonotiini sul) shining black in ground color, but mostly con- 

 cealed beneath a brownish dtist, and with only taint mdications of stripes. Dust on 

 the pleura; more giayish. Ahdumcn with similar dust ; in the middle with a more 

 brownish, sub-interrupted stripe, and narrow dark posterior margins to the segments. 

 I'emora lilack or very deep brown ; first two pairs of tibife and tarsi brownish yellow 

 or luteous, the hind tibia3 and tarsi blackish brown ; hind tibi« on the posterior sur- 

 face \vitii noticeable, erect, siibapical bristles, hind tarsi about as long as their tibiae, 

 the first three joints widened from base to tip of each, so as to form a distinct serra- 

 tion on their inner acute angles, each of which terminates in a long hair. Wings 

 with a light blackish tinge (due to microscopic pubescence), the immediate base yel- 

 lowish ; first posterior cell rather symmetrically narrowed to terminate broadly at 

 the extreme tip of the wing. 



9. Front straight on the sides, its width about equal to one-half the distance 

 from the foremost ocellus to the base of the antenna; ; the median deep brown stripes 

 about as wide as the lateral pruinose portion. Palpi yellow, with the margins and 

 tij) blackibh. Legs more yellowish ; hind tarsi regular ; pulvilli and claws small. 



