384 INSEOTA SAUNDERSIANA. 
mouth pitchy : feelers black; third joint slightly tapering from the base to 
the tip, more than twice the length of the second, nearly reaching the 
epistoma: abdomen flat, tapering towards the tip, narrower than the chest 
and nearly twice its length: knees ferruginous: wings blackish brown, 
slightly convex along the fore border, with a broad colourless stripe from near 
the base to the middle and with two white oblique curved bands across the 
middle; a lurid spot on the middle cross-vein ; longitudinal veins undulat- 
ing; middle cross-vein slightly oblique ; lower cross-vein very undulating : 
halteres pale yellow. Length of the body 4 lines ; of the wings 7 lines. 
United States. 
TRYPETA SOUTELLATA. 
Fusca ; caput testaceum ; scutellum album ; pectus albo trivittatum ; ab- 
domen basi ferrugineum ; pedes fulvi; ale fusce, maculis duabus 
anticis fasciaque postica maculam includente albis. 
Urophora? Dark brown: head testaceous, whitish in front and be- 
neath ; epistoma slightly prominent: mouth and palpi tawny: third joint 
of the feelers long-conical, more than twice the length of the second ; sixth 
black, feathered to the tip with short hairs, tawny at the base: scutcheon 
white : breast pale brown with a white stripe on eavh side: abdomen a little 
longer than broad, ferruginous towards the base, not longer than the chest : 
legs tawny: wings dark brown, with two angular white spots on the fore 
border before the middle of the wing, and with an angular.white band which 
rests on the hind border and incloses an angular spot ; veins black, slightly 
undulating ; lower cross-vein long, oblique, very slightly undulating: alule 
white: halteres pale yellow. Length of the body 2} lines; of the wings 6 
lines. 
Senegal ? 
TrYPETA ALBIDA, Foam. 
Nigra, cinereo-tomentosa ; caput et scutellum flava; abdomen apicem 
versus luteum ; pedes testacei ; ale alba, fusco fasciate. 
Acinia, Desv. Black, with a cinereous covering : head whitish yellow ; 
crown testaceous : mouth tawny; feelers yellow, short; sixth joint black, 
slender, bare: scutcheon yellow: abdomen obconical, hardly longer than 
