Families Bethylidoe and E-hopalosomidse. 105 



and very sparsely punctured, without a frontal sulcus. Eyes 

 separated from the hind margin of the head by a distance 

 slightly exceeding half of their own length ; the posterior 

 ocelli situated on the hind margin of the head. First joint of 

 the flagellum a little longer than the third, a little more than 

 half as long again as the second. Tliorax shining ; pronotum 

 distinctly longer than the greatest breadth, broadly rounded 

 anteriorly ; mesonotum with well-defined parapsidal furrows ; 

 scutellum with a fovea on each side at the base. Median 

 segment (fig. 2) as broad as long, the dorsal surface distinctly 

 margined apically and laterally, smooth at the sides and 

 apical angles, with a low median carina extending to the 

 apex, an elongate triangular area bounded at the base by 

 low convergent carinse which do not reach the apex finely 

 and irregularly reticulate ; the sides of the segment and the 

 surface of the apical truncation almost smootii. Abdomen 

 smooth and shining. Submedian cell no longer than the 

 median, nervulus nearly twice as long as the basal nervure ; 

 radius about half as long again as the nervulus and basal 

 nervure combined. Tarsal ungues with a small tooth at 

 right angles to the ungues just beyond the middle, the ungues 

 (fig. 1, h) behind the tooth slightly swollen. 



Hah. German East Africa, north of Handeni [Dr. W. A. 

 Lamhorn) . 



On outskirts of Glossina pallidipes area. 



Rhahdepyris cethiops, sp. n. 



5 . Nigra ; mandibulis, scapo, flagello articulis duobus basalibus, 

 tegulis pedibusque ferrugineis ; segmentis abdominalibus tribus 

 apicalibus rufo-ferrugineis ; alls hyalinis, leviter infuscatis ; venis 

 testaceis, costa, stigmata radioque nigris. 



Long. 6 mm, 



? . Clypeus subtriangular, blunt at the apex ; head longer 

 than broad, opaque, very closely and rather finely punctured ; 

 with a distinct longitudinal frontal sulcus, which does not 

 reach to the anterior ocellus. Eyes slightly hairy, separated 

 from the hind margin of the head by a distance about equal 

 to half of their own length ; posterior ocelli a little further 

 from the hind margin of the head than from each other. 

 Scape curved, as long as the three basal joints of the fla- 

 gellum combined ; second joint of the flagellum a little longer 

 than the third or fourth, the first and second joints subequal. 

 Mandibles oblique at the apex, with five teeth, the outer one 

 large and pointed, the second blunt and fairly large, the 



