NOTES ON THE NOMENCLATURE OF CERTAIN AFRICAN TABANIDAE. 141 



Head : ocelli present ; face, jowls and lower half of front light buff pollinose, clothed 

 with pale yellowish hair, occiput smoke-grey pollinose, and likewise clothed with 

 pale yellowish hair ; upper part of front with a pair of narrow, blackish stripes, 

 commencing at ocellar tubercle, descending somewhat lower than middle and 

 diverging below, each stripe clothed with short, curving black hairs, interspersed 

 with some gHstening yellowish hairs ; palpi clothed with yellowish hair, longer on 

 ]^roximal than on terminal joint, latter russet or ochraceous tawny, proximal 

 joint mouse-grey, russet towards distal extremity ; first and second joints of antennae 

 clothed partly with yellowish hair, partly with black hair, first joint mouse-grey or 

 deep neutral grey, second joint russet (third joint missing in case of type). Thorax : 

 smoke-grey longitudinal stripes on dorsum extending from front to hind margin of 

 scutum, confluent posteriorly ; transverse suture smoke-grey, forming a connection 

 between lateral border and outer smoke-grey stripe on each side ; pleurae and pectus 

 light greyish olive pollinose ; thorax clothed with yellowish haii-, black stripes on 

 dorsum clothed posteriorly with fine black hair. Abdomen : black area on first 

 (visible) and second tergites restricted to a transverse band occupying middle third 

 of anterior half, with rounded posterior angles in each case, and, especially on second 

 segment, indented in middle line behind ; lateral margins of fourth and following 

 tergites, and lateral extremities of hind border of third tergite ochraceous tsbwny, 

 though normally concealed by hair and smoke-grey pollen ; seventh tergite entirely 

 grey ; lateral extremities and hind borders of all tergites clothed with gHstening 

 hair, longer and ochreous on lateral extremities of second and two or three following 

 segments, shorter and paler elsewhere ; black area on second tergite clothed with 

 yellowish hair, corresponding areas on two following tergites clothed with short, 

 erect black hair ; venter smoke-grey, clothed with appressed, glistening, cream- 

 coloured hair ; second sternite with a transversely elongate, somewhat reniform, 

 fuscous black blotch in middle line, resting on or close to anterior border and confined 

 to anterior half of segment, third and three following sternites each with a sooty 

 black, transverse band on front border, widely separated in each case from lateral 

 margins, and from twice to four times deeper on third than on either of the other 

 sternites, these bands clothed with short, erect, black hair. Wings with auxiliary 

 and first longitudinal veins, second longitudinal from base to a little beyond origin 

 of third longitudinal, praefurcal portion of fourth longitudinal, and extreme bases 

 of fifth and sixth longitudinal veins ochreous ; veins otherwise more or less dark 

 brown. Squamae cream-buff. Halteres maize-yellow, knobs sometimes darker 

 (mummy-brown) at base. Legs : coxae and femora deep mouse-grey, clothed with 

 yellowish hair ; tibiae and tarsi clove-brown, clothed with minute black hairs, tarsal 

 joints sometimes paler towards base. 



South Africa (Cape Province) ; type and para-type from Bizana, East Pondoland, 

 1912{—Goodall : presented by Mr. T. B. Goodall). 



The species described above shows a decided resemblance to Buplex (Pangonia) 

 suavis, Lw., but, apart from its smaller size, is distinguishable, inter alia, by the 

 presence of the two blackish stripes on the front ; by the outer two of the three 

 longitudinal smoke-grey stripes on the disk of the scutum being narrower ; by the 

 absence of a brown blotch near the tip of the wing, above the fork of the third longi- 

 tudinal vein ; and by the veins in the region of the discal cell being suffused with 

 mummy-brown. 



