MALLOTA. 99 
1 (4) Hind femora moderately thickened ; yellow 
band of the 2nd abdominal segment entire. 
2 (3) Third abdominal segment with a broad basal 
yellow band and the fourth with a narrower 
one; hind borders of segments 2 to 4 
with a yellow line ; tarsi yellow; eyes 
with long hair; marginal cell widely 
GPRM E NE nets. oe eto e ed 8 neta. otet wees @ngma, Bezzi. 
3 (2) Third abdominal segment wholly black and 
no yellow line at the hind border of the 
segments; tarsi dark brown; eyes with 
short hair; marginal cell narrowly open.. extrema, Loew. 
4 (1) Hind femora exceedingly thick; yellow band 
of the second segment broadly interrupted 
HPC BECUC ode nis ue scp set nas PUCRPMENG, Sp. 1, 
Of the species extrema I have not seen any specimens, but is 
included here for comparison. 
105. Mallota enigma, Bezzi (1912). 
Recently described by me from the Island of Fernando Po. 
There is a single female from Chirinda Forest, x. 1905 (G. A.W. 
Marshall), which agrees well enough with the type. The black 
spot at the base of all the femora is present, as well as in the two 
other species. 
106. Mallota pachymera, sp. n. 
3 2. Length of the body in the male 10 mm.; in the female 
13°5 mm, 
Kasily recognised by the enormously thickened hind femora and 
by the abdominal pattern; notwithstanding the difference in the 
size, I believe that the two specimens belong to the same species. 
Head shining biack, but covered with long and dense greyish hair ; 
sides of the tace grey pollinose, and therefore there is a broad black 
band in the middle; antennal tubercle prominent; face hollowed 
below the antenne and with a broad rounded tuberele; lunula 
yellow; eyes with no distinct spots, clothed with long and dens2 
grey hair; eyes of the male approximated on the middle of the 
trons, ae not touching ; antennw black, the basal joints reddish, 
the third ovate, twice as long as the two others, with a bare, dark 
yellowish arista. Back of the thorax grey, not striped, clothed 
with rather long greyish hair, longer on the pleure ; scutellum 
yellow, with long hair. Squamulz lurid, with a grey fringe; 
halteres whitish. Abdomen shining black, clothed with rather 
long grey hair, shorter in the female, black at the hind border of 
the segments; the first segment is yellowish-grey with a basal 
black spot below the seutellum ; second with two indistinct and 
narrow yellow spots on the sides, forming an interrupted band; 
other segments only a little yellowish at the sides and on the hang 
border; in the female with a narrow basal pollinose band; genitalia 
1 2 
