THE MYCETOPHILIDA. 119 
M. ruficollis, Macq. 
M. lurida, Mg. 
M. monostigma. 
| M. centralis. 
M. lineola, Mg. = + 
This is more common and smaller than the above species. The 
general appearance is dark brown, but the head is tawny. The palpi 
yellowish-red, and the antennz tawny at the base. There is a tawny 
stripe on each side of the thorax, as in démaculata. ‘The wings are 
gray, and there is a brown spot on the tip of the pra-brachial areolet 
and of the fork of the fourth longitudinal vein. ‘The veinlets of the 
pree-brachial areolets form nearly a right angle. The abdomen is 
brown, with tawny bands on the hind borders of the segments, and 
having a white tomentum underneath. The ¢@ genitalia yellowish- 
brown; ovipositor (2) yellowish. Legs testaceous; tarsi darker 
than tibize ; the latter armed with many stout spines. Length, 1? to 
24 lin. 
M. lutescens, Zett. = M. Senata, Steph. 
Somewhat like cingu/um, but as large, or larger, than punctata. 
Occurs from Glanvilles-Wootton to N. Scotland. 
GENuS.—Lymosia, Wtz. 
Three ocelli, one near each eye and the third in front ; very small. 
The costal does not extend beyond tip of the cubital. The base of 
fourth hind areolet a little nearer base of wing than is base of the 
second hind areolet, wth the petiole of the latter very short. Legs 
long and slender. Metamorphosis unknown. 
A _ {M. rufa, Macq. 
Oe a M. domestica, Mg. 
Winnertz says the larve live in Agaricus melleus. The perfect 
insect is black to reddish-brown. Vertex with white tomentum. 
Head dull yellow to brown; proboscis and palpi yellow ; antennze 
brown; base yellow. Antenne twice the length of thorax in 
the ¢; about the same length as thorax in the 9. Pectus and 
sides of the thorax yellowish-red. Wings having the prz-brachial 
areolet closed by two veinlets, which form an acute angle, the 
hind one longer than the fourth longitudinal vein before its fork. 
Anal vein very short. Abdomen club-shaped ;_ blackish-brown ; 
testaceous beneath ; with testaceous bands for half the length from 
the base ; the base testaceous in the 92; browninthe ¢. The ovi- 
positor is composed of three angular valves; the lamellz thin and 
oval. The colour varies in the male. The legs testaceous ; spurs 
