24 Mr. R. E. Turner on 
6. Femine similis; capite pallide aureo-pubescente; flagello- 
articulis 2—7 infra fortiter arcuato-dilatatis. 
Long., ¢d 2, 14 mm. 
2. Clypeus subtruncate at the apex. Hyes separated on 
the vertex by a distance not quite equal to the length of the 
two basal joints of the flagellum. Pubescence of the thorax 
very sparse and pale, longer on the sides of the median 
seement. Abdomen rather slender, the basal segment not 
quite as broad as the second; second sternite opaque, 
minutely and closely punctured, with sparse larger punc- 
tures ; pygidial area elongate-triangular, narrowly rounded 
at the apex, clothed densely with reddish gold pubescence. 
Basal joint of fore tarsus with five spines. 
3. Eyes separated on the vertex by a distance equal to 
the length of the third joint of the flagellum; seventh 
tergite truncate at the apex, the sides convergent from the 
base ; eighth sternite broadly subtruncate at the apex, the 
apical angles not produced. 
Hab. British East Africa, Kuja Valley, 8. Kavirondo, 
4000 ft..(S. A. Neave), April 30-—May 1, ¢; Uganda Pro- 
tectorate, between Kumi and N.E. shore of Lake Kioga, 
3400-3600 ft. (S. A. Neave), August. 
This is near 7. aurichalcea, Kohl, but is a more slender 
species, with differently coloured wings, and also differs in 
the clypeus, the slightly narrower space between the eyes, 
and in the male antenne and apical segments. This belongs 
to the section of the genus in which the galea is short and 
broadly rounded, not rostrate. 
- 
26. Tachytes volubilis, sp. n. 
¢. Niger; segmentis abdominalibus margine apicali brunneis; 
calcaribus unguiculisque ferrugineis; fronte clypeoque sub- 
argenteo-pubescentibus ; thorace segmentoque mediano sparse et 
pallide aureo-griseo-pubescentibus ; segmentis dorsalibus aureo- 
pubescentibus, fasciis apicalibus distinctissimis ; alis flavo- 
hyalinis, venis ferrugineis. 
Long. 12 mm, 
&. Clypeus very broadly rounded at the apex; galea 
much shorter than the scape; vertex rather indistinctly 
punctured; eyes separated on the vertex by a distance 
slightly exceeding the length of the second joimt of the 
flagellum. Thorax very closely and minutely punctured ; 
median segment finely rugulose, twice as long as the 
scutellum. Abdomen rather slender ; second sternite 
