22 Mr. R. E. Turner on 
the apical margin arcuately depressed, with a few long 
fuscous hairs at the base of the depression. Second sternite 
rather sparsely and not very finely punctured, shining. 
Pygidial area clothed with fuscous sete, which change to 
reddish gold in some lights, especially at the apex; tri- 
angular, narrowly rounded at the apex. Basal joint of the 
fore tarsus with six spines. Third cubital cell extending 
distinctly beyond the apex of the radial cell ; third abscissa 
of the radius a little longer than the second, but shorter 
than the first. 
Hab. Nyasaland, Mlanje (S. A. Neave), December. 
Superficially rather like 7. marshalli, Turn., but the second 
sternite is much more closely and finely punctured, the 
silver pubescence on the abdomen is not nearly so extensive, 
and the third cubital cell is much longer on the cubitus. 
But marshalli belongs to the group with elongate palpi. 
22. Tachytes distanti, sp. un. 
9. Nigra, argenteo-pilosa ; tarsis ferrugineis, articulo basali supra 
nigro; capite, thorace, segmentoque mediano albido-pilosis, 
mesonoto scutelloque pallide fulvo-griseo-pilosis; segmentis 
dorsalibus dense argenteo-pubescentibus, fasciis apicalibus 
distinctis ; area pygidiali argenteo-pilosa; segmentis ventralibus 
apice anguste brunneis ; alis subhyalinis, pallidissime flavidulis ; 
venis ferrugineis. 
Long. 14 mm. 
9. Clypeus broadly rounded at the apex, the anterior 
margin narrowly depressed and very shallowly emarginate 
in the middle. Eyes separated on the vertex by a distance 
slightly less than the combined length of the two basal 
joints of the flagellam. Front and clypeus with shining 
silver pubescence, with long whitish hairs intermingled ; 
pleuree and median segment clothed with long whitish hairs, 
the dorsal surface of the thorax clothed with short erect 
greyish-fulvous hairs. Dorsal segments densely covered 
with silver pubescence; pygidial area triangular, almost 
pointed at the apex, clothed with silver pubescence slightly 
tinged with gold. Second sternite subopaque finely and 
closely punctured. Basal joint of the fore tarsus with five 
long pale spmes. Radial cell pointed at the apex, the appen- 
dicular cell very narrow ; third cubital cell extending on the 
cubitus beyond the apex of the radial cell, nearly three- 
quarters of the length of the second cell on the cubitus. 
First abscissa of the radius a little longer than the third, 
second less than two-thirds of the length of the third, the 
