TWO NEW SPECIES OF AFRICAN FRUIT-FLIES. 73 



sex tliey are larger ; these blotches recede from sides o£ head helow^ so as to 

 leave more of yellow ground-colour visible in that region ; posterior orbits 

 not conspicuous or sharply defined ; a seal-brown transverse band on upper 

 half of f ront_, extending from eye to eye immediately below ocellar triangle, 

 and a second similar but slightly deeper band across lower margin of front 

 and upper part of face, thus including point of origin of antennae ; an in- 

 conspicuous seal-brown mark below eye on each side, extending to margin 

 oF buccal cavity ; pal_pi broad, cinnaiiion-coloured ; antennce dark brown, 

 first and second joints tinged with chestnut, arista pubescent, clove-brown, 

 buff at base; cephalic bristles, like macrochsetfc on body, black. Tliorax i 

 dorsum with two transverse bands of minute., whitish or yellowish, appressed 

 hnirs, which contrast with the general black hue of the ground-colour; 

 anterior band of whitish hairs just in front of transverse suture, extending 

 from side to side, its central region with a somewhat greyish ground, while 

 towards its extremities, which rest on the transverse suture or even extend 

 just across it, ground-colour may show traces of cinnamon-rufous ; posterior 

 band, which, at least in the case of the three specimens available for exami- 

 nation, consists of distinctly yellow^ish hairs, situate between bases of wings, 

 but not reaching lateral margins and scarcely extending beyond dorsocentral 

 bristle on each side ; humeral calli and yellow stripe on mesopleurse thinly 

 clothed with pale yellow hair. Ahdomen : on upper surface (except lateral 

 margins) posterior third of first segment and posterior two-thirds of third 

 segment cream-bufF in S ? whitish grey in ? , clothed with short, glistening, 

 yellowish-white hair ; hair elsewhere inconspicuous and mainly black, on 

 sides of fourth segment in $ , and on first segment of ovipositor brownish ; 

 long bristles on sides and hind margin of fourth segment conspicuous in 9 ; 

 proximal segment of ovipositor tapering towards distal extremity, from which 

 in the case of one specimen the tip of the following segment and the needle- 

 like point of the terminal segment can be seen protruding. Wings : main 

 clove-brown markings consist of a band which, commencing in second 

 costal cell (outer costal cell of Loew) just on proximal side of bent-up 

 terminal portion of auxiliary vein, on one hand extends along costa to tip of 

 wing, filling space between costa and third longitudinal vein, and dipping 

 below latter at its distal extremity so as to fill upper distal angle of first 

 posterior cell, — and on other hand sends off a transverse branch, which starts 

 from third longitudinal vein close to its base and terminates on sixth longi- 

 tudinal vein near hind margin of wing ; this transverse branch, which at its 

 base covers anterior transverse vein, leaves a narrow hyaline edging o£ 

 irregular shape in extreme base of discal cell, and is narrower below fifth 

 longitudinal vein ; in addition to main transverse branch just described, 

 clove-brown costal border sends off from about its middle a narrow oblique 

 branch of uniform width, which crosses fourth longitudinal vein and 



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