342 Mr. E. E. Austen on new 



transverse band on ventral plate of following segment obso- 

 lete in one specimen except on each side ; ventral plate of 

 seventh segment clove-brown except hind border and lateral 

 margins. Wings somewhat paler towards hind margin, 

 stigma ochraceous, veins tawny. Squamae buff. Halteres 

 cream-buff, stalks brownish or ochraceous-buff. Legs: coxae 

 dusky, grey pollinose, clothed with straw-yellow hair ; femora 

 clothed with black hairs, mixed, at least in case of middle 

 and hind femora, with some yellow hairs ; tibia? and tarsi 

 clothed with buff-yellow hair. 



Northern Nigeria; type and one other specimen from 

 South Bornu, September, 1907 {Dr. H. A. Foy) . The donor's 

 field-note is as follows: — "Attacking horse; sucked blood 

 on the wing without settling, and darted away after feeding." 



Pangonia concitans may be distinguished from P. ruppellii, 

 Jaenn., which also occurs in Northern Nigeria, inter alia 

 by the face being shorter, by the proboscis (including the 

 labella) being shorter and thicker, by the pale bands on the 

 hind borders of the distal abdominal segments being buff- 

 yellow and clothed with chrome-yellow hair, instead of 

 whitish and clothed with similarly coloured or yellowish- 

 white hair, and by the absence of a posterior median notch 

 in the dark band on the fourth abdominal segment. 



Genus Cadicera, Macq. 



Cadicera nigricolor, sp. n. 



$ . — Length (1 specimen) 15 mm. ; width of head 5 mm. ; 

 width of front at vertex 075 mm. ; length of proboscis 

 3' 75 mm. ; greatest width of abdomen (third segment) 

 8 mm. ; length of wing 14*8 mm. ; greatest width of wing 

 5*5 mm. 



Body entirely black, clothed with black hair, and totally 

 devoid of lighter markings ; wings dark brown, with a purplish 

 tinge; legs varying in colour from clove-brown or almost black 

 to dark chestnut-brown, and clothed with black hair except on 

 inside of front tibia, where a longitudinal streak extending 

 from base almost to distal extremity is composed of minute, 

 oppressed, buff-yellow hairs. 



Head : front clove-brown, face dark Vandyke-brown, thinly 

 clothed on each side with dark brown hairs, traces of grey 

 pollen on antennal protuberance and on sides of face next 

 eyes; basi-occipital region clothed with black hair; palpi 

 dark Vandyke-brown, proximal joint clothed below with 

 long, fine, blackish hair, terminal joint elongate, 225 mm. 



