African Phlehotomic Dlptera. 345 



transverse hatul mummy-brown ; transverse band extending 

 ()blii|ncly backwards from lirst longitudinal to posterior 

 branch of tiftli vein, base of its proximal niarf^in on a level 

 with base of thinl louj^itudinal vein, that of its distal inar'^in 

 on a level with distal extremity of stigma, band narrowing 

 until it reaehes base of fifth posterior eell, in which, as also 

 in diseal cell, it is somewhat emarginate on its outer side; 

 veins raunmiy-brown, in places ochraceous-buff. Halteres : 

 knob dark brown, stalk cinnamon. Legs: middle and hind 

 ft'uiora clothed with maize-yellow hair, long and fine below ; 

 front tibiie stout, but not incrassate, distal two-thirds 

 brownish ; last four joints and distal extremity of first joint 

 of each tarsus dark brown. 



Zululand : Kosi Bay, February-]\rarch, 1900 (F. Topinn : 

 presented Ijy Mr. E. Warren, Government Museum, Pieter- 

 maritzburg, Natal). 



Witii Chrysups fuscipennh, llieardo (Mashonaland and 

 Nyasaland Protectorate), C. ciliaris, Lw. (the type of which 

 was stated by its author to be from " Caffraria "), and the 

 new species from Noithcru Nigeria described below, C. lati- 

 ceps forms a well-defined jL^roup, recognizable at once by the 

 sharply defined and characteristic wing-markings (which are 

 without an ajjical blotch on the distal portion of the costa), 

 as well as by the general fades, including the broad head, 

 broad and thickset body, and fringed hind tibiae. From 

 C. ciliaris, Lw., C. laticeps may be distinguished inter alia 

 by the abdominal markings^ the bands on the third and 

 following segments being eutire instead of widely interrupted 

 in the niiddle line ; from C. fuscipennis, Rieardo, the new 

 species is distinguishable by its shorter antenna;, diHerently 

 shaped ocellar spots, and conspicuous bands of ochre-yellow 

 hair on the dorsum of the abdomen. Owing to its small 

 size and dnsky coloration, especially its dark abdomen and 

 legs, the loUuwing species cannot possibly be confused with 

 C. laticeps. 



Chrysops pusillula, sp. n. 



? . — Length (1 specimen) 5 mm. ; width rf head "2 mm. ; 

 width of front at vertex \')l mm. ; length of wing 5-2 mm. 



A very small dusky species, with sharply dcjiued ainr/- 

 niarkiui/s of the same type as those of C. laticeps {no apical 

 blotch on costa). — Head smoke-grey, poUinose, front mouse- 

 grey ; thorax mouse grey, pollinose, c.rcept median third of 

 dorsum, whhh is light grey ; dorsum of thorax in case of type 

 u-ith a pair of elevated and uidcly separated shining black 



