African Phhbotomic Dijtera. 93 



markings and at distal extremity a conspicuous light cross- 

 band, which, starting from costa just beyond end of second 

 longitudinal vein, rejoins margin a little below middle of second 

 submarginal cell, and thus cuts off extreme tip of wing ; front 

 and hind legs clove-brown, middle legs seal-brown, front and 

 hind tibia each with a broad cream-coloured band at base, 

 clothed with silvei-y hair, middle tibia with two cream-buff 

 bands. 



Head : front yellowish grey, its sides nearly parallel, face 

 and jowls smoke-grey ; frontal callus moderately deep, ex- 

 tending from eye to eye, its upper margin convex, lower 

 margin straight, close to base of antennae ; seal-brown 

 median spot below callus very small and inconspicuous, 

 divided ; lateral frontal spots rather small but conspicuous, 

 seal-brown, in contact with or nai*rowly separated from eyes, 

 median frontal spot inconspicuous or absent ; palpi eream- 

 buff, terminal joint rather small, tapering, clothed on outer 

 side with short black hairs, at base and below with yellowish 

 hair ; first and second joints of antenna ochraceous-buff, 

 third joint wanting, first joint 6 mm. in length, but 

 very slightly incrassate, upper angle of second joint dark 

 brown, strongly produced, first and second joints clothed 

 with black hair. Thorax : dorsum, including scutellum, 

 clothed with short yellowish hairs ; front and hind margins 

 and stripes smoke-grey, a narrow median stripe reaching 

 hind margin and a pair of broader admedian stripes, latter 

 terminating in a point just beyond transverse suture ; hind 

 margin with usual crescentic grey mark on each side of 

 median stripe, with which crescentic marks* are in contact ; 

 pectus, pleura?, and sides of dorsum smoke-grey, clothed 

 with whitish hair ; scutellum with a faint darker transverse 

 baud close to base. Abdomen : dorsum with a faintly 

 indicated median grey longitudinal stripe, fourth and 

 following segments each with a pair of more or less distinct 

 small admedian grey spots, sides of segments greyish, clothed 

 like hind margins with yellowish hair ; venter greyish 

 pollinose, clothed with short appressed yellowish hair. 

 Wings : usual three rosettes of light markings present, 

 although often more or less broken up into isolated spots ; 

 usual sinuous light mark near tip of wing represented by 

 cross-band described above, which broadens out below, and 

 is sometimes nearly straight, sometimes slightly sinuous; 

 stigma distinct, dark seaUbrown, with a more or less quad- 

 rate brown blotch below it, extending to third longitudinal 

 vein ; a more or less quadrate light spot next costa at each 

 end of stigma, distal one sometimes with a dark dot iu 



7* 



