THE MYCETOPHILID. 123 
Genus.—Mycothera. 
Moderately small, dark brown and yellowish-brown genus ; wings 
with brown markings. Head round. Fourth joint of palpi long. 
Antennz 16-jointed. Eyes roundish; ocelli small, the middle one 
standing in a little cavity. Abdomen 6 or 7-jointed; hypopygium 
small. The wings large, and the petiole of the second hind areolet 
is short, not long as in Exechia. 
M. semtfusca, Mg. 
This is a dark brown species, and, according to Walker, it has a 
gray tomentum. The head is brown. The thorax is also dark brown, 
‘with a testaceous spot on each side, has bright yellowish hairs on it. 
Abdomen dark brown ; the ¢ genitalia small; the ovipositor tawny ; 
lamelle brown. Palpi testaceous. Antennz brown, about length of 
the thorax, testaceous at the base. Wings marked with pale brown ~ 
across the middle and at the tips. Legs testaceous, tibiz and tarsi 
brown ; posterior femora also brown at their distal extremity ; spines 
on posterior tibize very small. The anterior tibize longer than antericr 
metatarsi. Length 1} to 14 lin. This does not appear to be a 
common species, nor does the other one that is found in England, 
viz., MZ. dimidiata, Staeg. = ocellus, W\k. 
Grenus.—Brachycampta, Wz. 
The costal vein ending a little before the tip of the wing ; base of 
fourth hind areolet much nearer base of wing than is base of second 
hind areolet. Metamorphosis unknown. 
B. bicolor, Macq. 
This gnat varies from rusty yellow to brown, with a grayish tinge. 
Head brown ; thorax brown and testaceous pectus ; abdomen testa- 
ceous, with brown markings. Anal segment small ; palpi testaceous ; 
antennz brown or black, testaceous at base, stout, shorter than 
thorax. Wings yellowish, with a brownish tinge. Legs yellowish ; 
tarsi brown ; the posterior tibize have only a few spines, and very 
long spurs ; anterior tibize nearly same length as the anterior meta- 
tarsi. This is an uncommon species, and the only one of the 
genus found in England. Length 1} to 2 lin. 
GENuUS.—Docosia, Wz. 
The base of the fourth hind areolet is in a line with that of the 
second hind areolet. Head oval, proboscis short; palpi bent, 4-jointed 
—first joint small, the fourth flatand very long. Antenne 16-jointed ; 
