na AN ACCOUNT OF BRITISH FLIES. 
M. punctipes, Staeg. 
A. crassicornis, Stan, = {97 Lunes 
pees 5c) 33 M. Spinicoxa, Zett. 
This isa dark species. The head is yellowish-red; the palpi — 
are yellowish. Antennz testaceous at the base. Antenne are 
stout, and in the ¢ longer than the thorax; in the 9? they are 
shorter and lanceolate. Head and thorax covered with a gray 
tomentum. The thorax has a reddish-yellow stripe on each side; 
these two stripes are broadest in front. The abdomen is yellowish- 
red (yellow according to Schiner) on the ventral surface, and 
also on the hinder parts of each segment. The ovipositor and male 
genitalia are testaceous, and sometimes brown. The wings have a 
yellowish tinge ; the hind veinlet of the pre-brachial areolet about — 
twice the length of the fore one. The anal does not extend to fork 
of.sub-anal. The legs are yellowish-brown, and fairly long ; tibize 
and tarsi brown; fore tibia much shorter than the fore metatarsi. 
The spurs and spines on the posterior tibiz long. Length 2 to 24 
lin. Fairly common at times. 
M. grata, Mg. 
A, ornaticollis, Mg. = \ M. lugens, Mg. 
M. analis. 
This is also a common species. It is testaceous, some almost 
dark brown. The head is dark brown, and the vertex has a white 
tomentum. The thorax is also blackish-brown, the sides having a 
white tomentum. ‘The proboscis and palpi reddish-yellow ; antennz 
dark brown, yellowish at the base. The abdomen seems to be liable 
to a large amount of variation, and there seem to be three distinct 
types of variation : 
(«) Blackish-brown, with small yellowish patches (=ornati- 
collts) ; 
(8) Entirely blackish-brown, with bright incisions (helleren 
Einschnitten) = Zugens ; 
(y) Or blackish-brown, with triangular yellowish patches from 
the second to the fourth segment, and with testaceous 
anal segment { = gra/a). 
Walker, again, describes his ovnatico/lis as having a large triangular 
blackish-brown spot on each dorsal segment. The legs are moderately 
long and testaceous ; tarsi brown; posterior tibie having longish 
spines; the anterior tibiz are much shorter than the anterior meta- 
tarsi. The wings are transparent and grayish, the costa and its 
neighbourhood being tinged with yellowish-red. Length 14 to 2$ lin. 
