SS SS 
THE MYCETOPHILIDA. 131 
A Jasciola, Mg. 
, ; | L. flavicornis, Mg. 
er JAneapennss, Big. = | L. consobrina, Curtis. 
L. crucigera, Zett. 
This gnat is yellowish, with testaceous ventral surface. Palpi 
yellow ; antennze brown, yellowish at the base. Legs yellowish- 
brown, with brown tarsi, Wings with a yellowish tinge, testaceous at 
the base, and having a gray sub-apical band. The first longitudinal 
vein short, united to second longitudinal vein by a transverse veinlet ; 
fork of the fifth longitudinal vein much nearer than the fork of the 
fourth to the base of wing. This is an abundant species, and is 
especially common on oak and lime trees. 
There are about a dozen of this genus found in England—the one 
described is the commonest. The larve live in fungi and rotten 
vegetable matter. 
The larva of G. fasciola, Mg. (fascipennis) is described by Van 
Roser* as follows: ‘‘ The transparent, smooth and slimy larva lives 
in delicate webs on the surface of tree fungi.” They strongly 
resemble Sciophiva larvee in habits and structure. 
G. Winthemii, Lehm. = Leta Winthemii Wik. (Ins. Brit.). 
This species is testaceous. The thorax has three brown stripes, 
the middle one being divided. Wings with three gray bands, which 
seem to vary, sometimes being almost absent. Abdomen has a dark 
band on each segment at the ventral edge. An autumnal species. 
Recorded by Dale at Glanville Wootton. 
G. subfasciata, Mg. = Leia Markiini, Zett., is the only other cer- 
tain British species ; there are many others recorded as British, but 
their records want verification. 
G. pulchella, Curt., is a bright ochreous species, with a dark spot 
on the thorax ; the first and second abdominal segments have a black 
spot ; third, fourth and fifth have a black ring; sixth and seventh 
black. Recorded by Curtis and Haliday, and taken on umbelliferz. 
Mycetophila, Mg. 
Genus Anaclinia, Wtz. = < Leta, Macq. 
Boletina, Zett. 
This genus resembles Zeffomorphus, but the ocelli are nearly of the 
same size, and are arranged in a straight line. Abdomen flattened 
laterally. Wings microscopically hairy; third vein, simple; fourth 
and fifth forked ; sixth vein not extending to the edge of wing. Zhe 
costa extends over the apex of third vein. 
* Verz. Wiirttemb. Dipt., 1834. 
