298 



ERNEST E. AUSTEN — NEW AFRICAN 



frontal spots very large and conspicuous, in contact with eyes and also extending 

 downwards till they meet frontal callus ; lateral frontal spots and clove-brown 

 area of front clothed with short, erect, clove-brown hair, a few whitish hairs on 

 each side on grey spot between frontal callus and lateral frontal spot ; frontal 

 callus a shining black transverse band of moderate depth, extending from eye to 

 eye and protuberant on each side of middle line ; a fairly large, dull black, 

 median spot, narrowly divided in middle line, in contact with lower margin of 

 callus and between it and bases of antennae ; face, jowls, and basioccipital region 

 light grey pollinose, clothed with whitish hair, upper part of face on each side 

 with a dark-brown-haired, transversely elongate, clove-brown spot between eye 



Fig. 5. — Ilaematopota nigripennis, Austen, 9 • X b. 



and antennae, and a little lower down a similar but smaller spot resting on inner 

 margin of eye ; palpi (see fig. 5a) grey, proximal joint and proximal half or 

 two-thirds of lower border of terminal joint clothed with whitish hair, 

 remainder of outer surface of terminal joint clothed with minute black hairs, 

 sometimes intermixed with minute whitish hairs ; first joint of antennae (see fig. 5 

 and fig. 5a) shining black, thinly greyish pollinose, elongate and strongly swollen, 

 roughly elliptical in outline when viewed from above, but when viewed from the 

 side its upper margin, as seen in fig. 5a, exhibits two depressions, one in centre, 

 the other close to distal extremity ; second and third joints of antennae clove- 

 brown (terminal annuli of third joint black), shaped as shown in fig. 5 and fig. 5a ; 

 first and second joints of antennae clothed with short black hair, proximal 

 two-thirds of lower inner margin of first joint clothed with long whitish hair. 

 Thorax: narrow, median, longitudinal stripe on dorsum drab-grey, usually 

 becoming obsolete (in pinned specimens at any rate) about level of large light 



