96 SYRPHID.E. 



99. H. (Mesembrius) strigilatus, Jlrzzi (1912). 



Recently described by me from French Congo and Portuguese 

 Guinea. 



There are in the collection two female specimens from Busoga, 

 Uganda, iii. 1906 (Dr. A. D. P. Hodycs), and a female from 

 Obuasi, Ashanti (Dr. W. M. Graham}, which I refer with some 

 doubt to this species. 



100. H. (Mesembrius) minor, sp. n. 



c? 2 length of the body 11 '5-1 2 mm. 



A small species, nearly allied to the preceding one, but distin- 

 guished by the simple last abdominal segment of the male, bv the 

 abdominal pattern of the female, and in both sexes by the narrow 

 median pale line on the thorax. 



Head black, covered with dense yellowish pollen, the ocellar 

 triangle alone being shining black ; all the hairs are yellowish ; 

 antennal tubercle and middle line of the face also shining black ; 

 antenna entirely black, the third joint rounded, with a dark 

 reddish-brown arista ; eyes brown, unicolorous, bare, touching 

 along a short line in the male, separated as usual in the female ; 

 proboscis black. Thorax yellowish grey on the back, with three 

 black stripes, the middle one abbreviated behind and divided by a 

 very narrow median pale line ; pleura? grey, more densely pollinose 

 towards the middle ; scutellum yellowish, darkened at the base. 

 All the hairs on the thorax are pale. Halteres whitish ; squamulse 

 yellowish, with a yellowish fringe. Abdomen reddish yellow, the 

 lateral spots on the second segment in the male more yellow than 

 in the female ; first segment black ; second with the usual 

 A-shaped median black mark and with a reddish hind border ; 

 third segment with a similar median mark, which, however, is not 

 dilated forwards and is more grey behind ; fourth grey, yellowish 

 on the sides and behind, with a dull black spot towards the middle 

 of fore portion ; genitalia black ; belly pale yellow ; all the hairs 

 long and pale. In the female the first segment is grey, yellowish 

 towards the sides ; the yellow band on the second is not interrupted 

 in the middle ; the third and fourth are grey, yellowish on the 

 sides, with an arched transverse black band ; the fifth is triangular, 

 grey at the base, shining black at the apex. Legs black, grey 

 pollinose, and with pale hairs ; tips of the femora, tibiae, and basal 

 joints of tarsi yellow, in the male more broadly, the front tarsi 

 being even entirely yellow ; hind femora of the male thickened 

 with an external yellow fringe, provided below near the base with 

 a brush-like tuft of dense black and brown hairs ; before the end 

 there is a not very prominent black-haired tubercle and on the out- 

 side in the apical third there is an elongate, deep, shining furrow ; 

 hind tibiaB curved, black on the apical half ; hind tarsi entirely 

 black. Wings greyish hyaline, with a faint yellowish tinge near the 

 base ; the veins are black externally ; discal cell not appendiculate ; 

 kink in the third vein not very deep, but broad and rounded. 



