424 Mr. E. E. Austen on neic 



clove-browu (penultimate and antepenultimate aunulus often 

 paler), flattened from side to side, last annulus as long as or 

 slightly longer than two preceding annnli taken together, 

 basal portion of third joint about one third longer than first 

 joint, which is onlj' moderately swollen, upper angle of 

 second joint not much produced, first and. second joints 

 clothed with black hair. Thorax : scutellum with an olive- 

 brown spot on each side (in specimens not in perfect con- 

 dition usually uniform olive-grey or smoke-grey). Abdomen 

 clothed with minute pale yellow or ochraceous hairs; venter 

 uniform smoke-giey or drab-grey : dorsum of first segment 

 with an olive-brown, although not a quadrate blotch on each 

 side of middle line. Wings: curved light mark in marginal 

 cell at distal end of stigma semioval (rarely semicircular), 

 occasionally with a prolongation along costa to end of second 

 longitudinal vein ; generally four light spots (centre of 

 rosette) round fork of third vein, and groups of similar but 

 larger and coalescent spots round distal extremities of discal 

 and both basal cells ; two sharply defined sinuous light 

 streaks running across submarginal cells, usually separate 

 but occasionally approximate or in contact on low^er branch 

 of third vein ; sometimes a third less sharply defined light 

 streak across second submarginal cell close to tip of wing ; 

 a series of detached oblique light marks running across poste- 

 rior cells, sometimes in contact Avith marks representing 

 portions of rosettes round distal extremities of discal and 

 second basal cells; a series of (sometimes indistinct) light 

 marks along hind margin of wing, in distal angles of poste- 

 rior and axillary cells ; discal cell normally with a large light 

 spot or crescentic mark at each extremity, and a transverse 

 mark, often large and occasionally divided or partially 

 divided across middle ; markings in basal, anal, and axillary 

 cells of normal type, broad, often partly coalescent, and anal 

 cell almost entirely light, when markings distinct a large 

 light spot usually visible on sixth longitudinal vein near its 

 distal extremity ; first and second costal cells buff, no light 

 mark running up to costa before stigma, distal portion alone 

 of which is dark brown, rather less than proximal half being 

 light ochraceous. Halteres cream-bufi", knob seal-brown at 

 base above and below. 



Nyasaland Protectorate, Rhodesia, and Northern Nigeria : 

 type and 40 other specimens from Nvasaland Protectorate, 

 1905, 1907 {Dr. J. E. S. Old), including a series taken 

 24 miles from Blautyre, between 6 and 7 a.m. on 22. i. 1905, 

 concerning which the donor writes : — " In tall green reeds ; 

 bit myself and native servant ; usually silent and very 



I 



