9S SYRPHID®. 
second with a broad black band, which does not reach the hind 
border, is dilated fowards, and is on each side a yellowish spot ; 
third entirely red, with a small black basal spot; fourth red; 
genitalia and venter shining dark red; the hair is long, yellowish 
or reddish. In the female the colouring of the abdomen seems to 
be variable ; in the type it is very like that of the male, the black 
stripe of the second segment being dilated on the hind border ; 
most of the other specimens have the band of the second segment 
extended to the sides towards the hind border, the third and fourth 
similarly marked, and the fifth entirely black. Legs black, with the 
base of the tibia and tarsi more or less yellow, ne nitddile tibie of 
the female often entirely yellow. Hind femora equally thickened 
in both sexes, those of the male simple, without the basal brush ; 
hind tibize simple, without a tubercle; middle tibize of the male 
with a posterior apical tuft composed of 5-7 strong erect hairs. 
Wings more or less darkened, with very eharncbenehe strong 
bluish reflexions; veins black to the base; kink in the third deep 
and narrow ; lower corner of the discal cell with a short but strong 
stump. 
Type & from Entebbe, Uganda, 1—-21.ix.1911 (S. A. Neave), 
and an additional specimen of smaller size from Obuasi, Ashanti, 
20.v.1907 (Dr. W. M. Graham); type 2 and an additional 
specimen, viii. 1906, same locality and collector; four other speci- 
mens of the variety with the apex of the abdomen black, April to 
August, same locality and collector. 
104. H. (Mesembrius) morio, sp. n. 
@. Length of the body 12-18 mm. 
Possibly only a dark variety of the preceding ; distinguised by 
its entirely black scutellum and abdomen. 
Head and antenne as in I. cyanipennis, but the basal joints 
and the lunula are somewhat yellowish. The thorax is very like, 
but the pleure are darker and with darker pubescence. Abdomen 
entirely black, shining, even on the belly; second segment with a 
dull black pattern of the usual shape. Legs as in the preceding 
species; also the wings, which are even more infuscated towards 
the middle and more blue. 
Type 2 and an additional specimen from Nguelo, Usambara, 
German East Africa. 
Genus 18. MALLOTA, Mezgen (1822). 
I here employ this genus in its widest sense, placing in it 
He lophilus extremus, Loew, and my species, AZ. enigma. It 
differs from Mesembrius in having the eyes densely pilose and the 
face concave below the antenne, w vith a distinct tubercle; and from 
Protylocera by the hairy eyes and the open marginal cell. The 
single known male has the eves separated. 
