African Phlebotomic Diptera. 283 



coloured band at base, middle and hind tibiae each with two 

 creum-bvff bands. 



Head : front mouse-grey, narrowly lighter grey at sides 

 and round lateral frontal spots, of only moderate width, its 

 sides parallel or nearly so, a dark brown subtriangular patch 

 sometimes visible on vertex, not extending to eyes and. in- 

 completely divided by a narrow light grey median stripe ; 

 face and jowls smoke-grey, a more or less well-marked dark 

 brown area between base of each antenna and eye on same 

 side, and a dark brown streak extending inwards from lower 

 i liner margin of each eye, below level of antennae ; lateral 

 frontal spots black, large, and conspicuous, in contact with 

 eyes and almost descending to frontal callus, median frontal 

 spot inconspicuous or obsolete; frontal callus clove-brown, 

 deep or moderately deep, extending from eye to eye, upper 

 margin straight or slightly curved, lower margin excavated 

 above base of antennae, a conspicuous quadrate median black 

 spot in contact with lower margin of callus, and descending 

 to level of upper margin of base of antennae ; palpi isabel la- 

 coloured, terminal joint elongate, clothed on outer side with 

 black mixed with pale yellowish hairs ; antenna* clove-brown, 

 first joint lighter on inner side and below, elongate and 

 incrassate, truncate elliptical when viewed from above, upper 

 angle of second joint produced, third joint somewhat paler 

 ('specially on inner side, elongate and but little expanded at 

 distal extremity of basal third, last three annuli deep clove- 

 brown or black, conspicuously flattened from side to side. 

 Thorax : dorsum (including scutellum) clothed with shining 

 pale yellow deciduous hair, usual grey crescentic marks 

 visible on hind border ; pectus and pleurae smoke-grey ; 

 scutellum smoke-grey pollinose, with dark brown blotch on 

 each side of middle line at base. Abdomen : dorsum with 

 hind borders and lateral margins of segments clothed with 

 pale yellowish hairs, elsewhere clothed with minute black 

 hairs; venter clothed with minute, appressed, pale yellowish 

 hairs, ochraceous buff, fourth (or fifth) and following seg- 

 ment) brownish to dark brown, hind borders of segments 

 cream-buff or cream-coloured. Wings: usual three rosettes 

 present, but partially altered in appearance owing to'distal 

 and median rosette, and distal half of proximal one, being 

 largely broken up into dots ; apical sinuous mark transformed 

 into a transverse light marking, conspicuous and fairly broad, 

 especially below, running from beneath end of second longi- 

 tudinal vein to margin of wing in middle and lower half of 

 second submarginal cell ; hind margin with series of more 

 or less conspicuous, larger or smaller light blotches in distal 



