On new African Species of the Genus Chrysops. 507 



LXXIV. — New African Species of the Genus Chrysops, 

 Meigen, in the British Museum {Natural History). By 

 Ernest E. Austen. 



The latest list of African representatives of this genus * 

 inclndes the names of eighteen species. As stated in the 

 " Notes " at the end of the present paper, however, two of these 

 are synonyms. Six new species are described in the 

 following pages, bringing the number of known African 

 forms of these handsome and bloodthirsty flies up to twenty- 

 two. The JNIuseura collection contains examples of at least 

 two additional species, of which descriptions will be published 

 in a subsequent paper. The types (or co- types) of all the 

 new species described below are in the British Museum 

 {Natural History). 



Genus Chrysops, Meigen. 



Chrysops funebr is, sp. n. 



? . — Length f (5 specimens) 9 to 10^ mm. ; width of 

 head 2h to 2f mm. ; width of front at vertex | mm. ; length 

 of wing 9^ to 10 mm. 



Uniformly black, though the usual tufts of golden jnle are 

 present below humeral calli and on mesopleura ; dorsum of 

 thorax (denuded) thinly covered with greyish dust ; abdomen 

 (except a dull black area on the middle of the first segment, 

 below the scutellum) shining, clothed above with minute, 

 sparse, ivhitish hairs ; iving -markings uniformly dark brotvn 

 or black, distal margin of transverse band straight rr nearly 

 so ; Jirst and second joints of middle and hind tarsi yellowish 

 white, tips of these j oints usually brownish. 



Head. — Frontal callus large, nearly semicircular in out- 

 line, almost touching the eye on each side, and separated 

 from the black ocellar region by a narrow band of greyish 

 pollen ; a small patch of golden pollen between bases of 

 antennse (perhaps produced downwards in specimens in per- 

 fect condition) ; face considerably produced downwards and 

 forwards, very protuberant, separated from the shining black 

 jowls by a strip of golden pollen running down from the 

 front margin of the eye ; under surface of head thinly clothed 



* Cf. Bezzi, Bull. Soc. Ent. Ital, Anno xxxvii. 1905, p. 234. 

 t The length in all cases is measured from the front of the face to the 

 tip of the abdomen, and is exclusive of the antennae. 



33* 



