BACCHA. 43 
stripe, extending from the humeri to the scutellum. The line of 
contact of the eyes as long as the very narrow vertical triangle 
antennal tubercle less elittering violet. Abdomen black, ith 
vellowish ill-defined spots on the sides of the third and fourth 
segments. Ocellar tubercle not prominent. 
One male and three females from Obuasi, Ashanti, vi.—viil. 1907 
(Dr. W. MW. Graham). 
Var. superpicta, var. n. 
2. Length of body 10 to 11 mm., of wing 8 to 9 mm. 
Very like females of the typical form, which have a reddish- 
black striped abdomen, but the second segment showing always a 
black ring at the apex. The frons has “the same coloration’ and 
similarly prominent antennal and ocellar tubercles, the antennal 
one being violet-coloured, but narrowly yellow in front; the eyes 
seem to have only a middle brown band, as in the ty pical form. 
‘The halteres have also a blackish club. Wings of the same shape 

Fig. 7.—Baccha picta, var. superpicta, var. n. 
Wins of On <7. 
and coloration, but with the following two well-marked differences : 
(1) there is another yellow stripe, which occupies all the base of 
the anal cell and extends along the seventh vein to the middle of 
the same cell, ending in a point; (2) the hyaline preapical band is 
very narrow and cee ending before the hind lower corner of the 
first posterior cell. The brown apical spot is therefore fused with 
the brown middle band, not broadly separated as in the preceding 
form. 
Type § and three additional specimens from the same locality 
and collector as the typical form, viiix, 1907. 
37. Baccha grahami, sp. n. 
@. Length of body 9 to 10 mm., of wing 8 to 9 mm. 
A very elegant species near picta, but at once distinguished by 
the very different wing-pattern, which is yellow basally, with a 
broad median brown band, and hyaline apically, with a brown band 
at the tip. 
Head as in picta, both in shape and coloration; antenne orange- 
yellow; eyes apparently with a single brown band; occiput bearing 
