Dipt era 
289 
tt. Femora, at least in part, with 
strong black spines. Widely 
distributed. Palpomyia Megerle 
00. R2+3 coalescent with R4+5 hence cell Ra 
is obliterated. 
p. In the female the lower branch of the 
media with an elbow near its base pro¬ 
jecting proximad, the petiole of the 
media coalescent with the basal section 
of the radius, wing long and narrow, 
radial sector ending near the tip of the 
wing; venation of the male as in Bezzia\ 
front concave. United States. 
. Stenoxenus Coq. 
pp. Venation otherwise, front not concave, 
q. Subcosta and Ri more or less coalescent 
with the costa; wing pointed at the 
apex, much longer than the body; 
antennas fourteen segmented, not plu¬ 
mose. India. Haasiella Kieff. 
qq. Subcosta and radius distinct from the 
costa. 
r. Abdomen petiolate... Dibezzia Kieff. 
rr. Abdomen not petiolate. 
s. Head semi-globose; hind tarsi un¬ 
usually elongate in the female; 
antennas of the male not plumose. 
Europe. Macropeza Meigen. 
ss. Head not globose, more or less 
flattened in front; antennae of 
the male plumose. Widely dis¬ 
tributed . Bezzia Kieff. 
t. Fore femora, at least, armed with 
stout spines below r . 
.Subgenus Bezzia Kieff. 
tt. Femora unarmed. 
.... Subgenus Probezzia Kieff. 
ii. Media of the wing simple, and otherwise not as in “i”. To 
this group belong numerous Chironomid genera, none of 
which are known to be noxious to man. 
ff. The costal vein apparently is continued around the hind margin of 
the wing; radius with at least four branches, 
g. Wing ovate pointed, with numerous veins; crossveins, if evi¬ 
dent, before the basal third of the wing; veins very hairy; 
very small moth-like flies. PsychodiDjE 
h. With elongate biting proboscis; the petiole of the anterior 
forked cell of the wing (R 2 ) arises at or beyond the middle of 
the wing (fig. 163d).Phlebotomus Rdi. 
