14 Mr, R. E. Turner on 
median segment less than two-thirds as long as the meso- 
notum ; second sternite shining, with large scattered 
punctur es. 
&. Eyes separated on the vertex by a distance slightly 
exceeding three-quarters of the length of the second joint 
of the flagellum ; clypeus very broadly rounded at the apex. 
Apical tergites and sternites as in basilica. Second ventral 
segment finely and closely punctured. ‘The pubescence of 
the abdomen is paler than in observabilis. 
Hab. Gambia (Smith) ; N. Nigeria, Zungeru (J. W. Scott- 
Macfie), November. ?. 
The median segment is shorter than in basilica and 
observabilis, and the eyes are further apart on the vertex. 
The third and fourth joints of the flagellum are slightly 
arcuate beneath in the male, 
9. Tachytes perornata, sp. n. 
éo. Niger; mandibulis in medio, tegulis apice, calcaribus ungui- 
culisque fusco-ferrugineis; alis subhyalinis, venis fuscis; capite 
albo-piloso, thorace griseo-piloso, segmentis abdominalibus apice 
anguste brunneis, segmentis dorsalibus dense aureo-pubescentibus; 
segmento ventrali octavo apice fortiter emarginato. 
Long. 16 mm. 
3d. Eyes separated on the vertex by a distance slightly 
exceeding three-quarters of the length of the second joint 
of the flagellum ; clypeus broadly rounded at the apex ; 
maxillary palpi six-jointed; labial palpi four-jointed, the 
two basal joints long and slender, the second about equal in 
length to the second joint of the flagellum, the first longer ; 
puncturation of the vertex indistinct. Median segment 
nearly twice as long as the scutellum. Second sternite 
shining and rather strongly punctured in the middle, much 
more finely and closely on the sides. Seventh tergite rather 
broad, subtruncate broadly at the apex ; eighth sternite 
widely and rather deeply emarginate, the apical angles 
produced. 
Hab. Uganda Protectorate, Eastern Mbale District, South 
of Mt. Elgon, 3700 ft. (S.A. Neave), August ; Mbale-Kumi 
Road, South of Lake Salisbury, 3700 ft. (S. A. Neave), 
August. 
This is near velox, but has the seventh tergite broader, 
and the eighth sternite very different. The eyes are much 
further apart on the vertex than in observabilis or neavei. 
From mira it may be distinguished at once by the different 
number of joints in the palpi, and from rhodesiana by the 
