130 SYRPHID.T;. 



black, no distinct bands of pale hairs ; third segment twice as long as 

 the second, fourth three times as long as the third, all the sutures 

 distinct ; genitalia red, clothed with short yellowish hair. Legs 

 almost bare, with black COXBS ; femora and tibiae of a very dark 

 reddish colour, but the former blackened at base or at least at end ; 

 tarsi black or dark brown, the first joint of the hind tarsi slightly 

 thickened ; claws black, pulvilli dark brown ; front tarsi very 

 broad and flat, grey pollinose above. Wings long and broad, with 

 a general shining brownish-yellow tinge and strong, black veins ; 

 lower outer corners of subapical and discal cells very much rounded 

 and without stumps ; alula, axillary lobe, anal cell, and middle part 

 of the second basal cell in contact, with the fourth longitudinal 

 vein almost hyaline. 



The female (fig. 22) is very like the male, but of larger size and 

 blacker in colour ; the pubescence on the face is black, yellowish 

 only towards the eyes and margin of the buccal cavity; eyes 

 farther apart ; occipital border less developed ; thorax and scutellum 

 with black pubescence ; abdomen longer, entirely black, the fifth 

 segment one-third as long as the fourth ; legs entirely black ; 

 wings for the most part greyish hyaline, the dark tinge being 

 limited to the fore border and not extending beyond the third 

 longitudinal vein. 



Type tf , from Uganda Protectorate, Tero Forest, S.E. Buddu, 

 3,800ft., 26-30. ix. 1911 (S. A. Neave) ; type $, from N.W. 

 shores of Victoria Nyanza, 3,800-3,900 ft., 12-15. ix. 1911 (same 

 collector). I think there can be no doubt that the female described 

 belongs to the same species as the male. 



136. Microdon erythrocephalus, sp. n. 



$ . Length of body 13 to 14 mm., of the antennae 4 mm. 



A very distinct black species, with red head, antennae, and legs, 

 forming another addition to the extensive list of Ethiopian flies 

 distinguished by their black or blue bodies and wings, which 

 contrast with their red heads, like Bromophila caffra, Macq., 

 Clitodocafenestralis, Macq., Platystoma ruficeps, Enderl., etc. 



Head very broad, entirely dark red, \vith short golden pubescence 

 on the face, a small amount of similar pubescence on the central 

 portion of the frons, silvery hair on the lower hind borders of the 

 eyes, and with some white erect hairs on the lower part of the head ; 

 occipital border very broad at the vertex, Stratiomyia-like ; trans- 

 verse furrow in middle of frons distinct ; ocelli aggregated into a 

 small black dot, on either side of which there is a furrow, which 

 anteriorly converges towards its fellow; a shorter furrow runs 

 obliquely from the upper angle of each eye to the vertex ; above the 

 base of the antennae there is a triangular smooth area of a blackish 

 colour, which is connected by a furrow with the anterior extremity 

 of the ocellar furrows ; eyes shining black, comparatively small, 

 and oval ; opening of buccal cavity small ; proboscis reddish, re- 

 tracted ; antennae long, entirely red, the third joint paler than the 



