28 SYRPHIDJE. 



female, but with only two black bands, the third and the fourth 

 wholly wanting ; genitalia reddish ; all the tarsi black. 



Type S , Johannesburg, Transvaal, 1906 (A. J. Cholmley) ; a 

 female from British East Africa, M'bagon's Village, edge of Kenia 

 Forest, 5,000 ft., 12. ii. 1911 (T. J. Anderson). 



The singular distribution of this species, ranging from South 

 Africa to Italy, is paralleled by that of some other Diptera, as, for 

 example, Eristalis tceniops and quinquelineata, Stomatorrhina 

 lunafa, etc. 



19. Asarcina eremophila, Loew (1857). 



A large species, distinguished by the broad black facial stripe, 

 which, however, does not reach the base of the antennae, and by 

 the second and third abdominal bands being more or less constricted 

 in the middle. 



The face of this species does not project much, the margins of 

 the buccal cavity being perpendicular; the antennae are widely 

 separated. 



A female specimen from British East Africa, near Crater Lake, 

 N. of Mount Kenia, 5,700 ft., 15. ii. 1911 (T. J. Anderson). 



20. Asarcina rostrata, Wiedemann (1824). 



This species may be recognised by the very projecting face, the 

 margins of the buccal cavity being produced forwards, and by the 

 facial stripe reaching the base of the antennae. The facial tubercle 

 is very broad. 



A specimen from Durban (F. Muir)\ this species seems to be 

 confined to the south of the liegion. 



21. Asarcina hirsuticeps, sp. n. 



3 . Length of body 14 mm. ; of wing 12 mm. 



Very distinct from any other known species on account of its 

 hairy eyes and its exceedingly produced face, which has a very 

 broad black stripe and is clothed on the sides with very long black 

 hairs. 



The line of contact of the eyes as long as the vertical triangle 

 (1 mm.), wholly covered with long and dense white hairs ; frons 

 unspotted, not tuberculate, clothed with long black hairs ; lunula 

 broad, yellow ; antennae widely distant from each other at the 

 base, more so than in the allied species, the first joint moderately 

 long, the third black, except on the lower basal corner which is 

 yellowish ; arista black, bare ; face very broad and very produced, 

 yellowish-dusted on the sides, where it is clothed with abundant 

 and long black hair; facial tubercle very broad, rounded, hori- 

 zontal, the black stripe broader than its sides, but not extending 

 above the base of antennae ; peristoma broad, wholly whitish yellow. 

 Thorax yellowish on the sides; scutellum yellow, with metallic 



