no 
DIPTERA 
segment always retracted, the ovipositor short, with two small lainella\ Legs strong, the hind pair long, 
the fore and middle pairs short; coxae and femora compressed, broad; the tibiae somewhat clavate, with 
strong spurs; fore and middle pairs with one or two small setae on the extensor surface, the middle pair 
usuall}' with two or three on the flexor surface, the hind pair with two ranges of stout setae on the 
extensor surface; plantae of the hind tarsi ciliate with fine setulae. Wings longer than the abdomen, oval, 
with somewhat rounded base; surface with longitudinal rows of microscopic setula?. Costa more or less 
produced beyond the tip of the radial sector, but not reaching the tip of the wing; subcosta incomplete, 
curved toward but not reaching the costa; media forks under or proximad of the base of the radial 
sector; cubitus forks under or proximad of the base of the fork of the media, the angle at the base very 
acute, the branches but slightly diverging; the first anal vein rudimentary or wanting, the second long 
but incomplete (PI, 6, Fig. 20). The flies may be found in woods during the Summer and Fall. 
The presence of the ocelli, and the usually slightly produced costa will distinguish this genus 
from Mycetophila ; the divergent branches of the cubitus will separate it from Mycotliera. The genera, 
however, run very closely together. 
Type species : E. scatopliora, Perris. 
Geographica! distribution of species : 
1. E. aterrima, Zetterstedt, Dipt. Scand. Vol. ii, p. 4225 (42) {Myceto- Europe. 
phila) (i852). 
2. E. nigriiella (Heer), Forster (fossil), Abh. Geol. Spezial k. Elsass, Vol. 3, Europe. 
p. 465 (1S91). 
3. E. pallipes (Heer), Forster (fossil), ibidem, p. 463 (1S91). Europe. 
4. E. pulicaria, Loew, Berl. Ent. Zeitschr. Vol. i5, p. i5i (41) (1869). United States. 
5. E. punctitm, Stannius, Obs. de Spec, nonnullis gen. Mycetoph. p. 16 Central Europe. 
(11), f. 4 [Mycetophila) (i83i). 
punctuvi, Winnertz, Verb. Zool.-bot. Ges. Wien, Vol i3, p. 910 (i) (18631; 
Schiner, Fauna Austr. Dipt. Vol. 2, p. 483 (i) (1S64). 
? obsoleta, Zetterstedt, Dipt. Scand. Vol. 11, p. 4192 (i5) [Mycetophila) (i852). North Europe. 
6. E. scatophora, Perris, Ann. Soc. Ent. Fr. (2), Vol. 7, p. 58, pi. 3, No. i North Europe. 
{Mycetophila) (1849). 
scatophora. W'irmeriz.Yexh.. Zool.-bot. Ges. Wien, Vol. i3, p. 911 (2) (i863); 
Schiner, Fauna Austr. Dipt Vol. 2, p. 488 (1864). 
7. E. trinotata, Staeger, in Krojer, Naturh. Tidsskr. Vol. 3, p. 242 (5) {My- North Europe. 
cetophila) (1840). 
trinotata, Zetterstedt, Dipt. Scand. Vol. 11, p. 4180 (5) (Mycetophila (i852); 
Winnertz, Verb. Zool.-bot. Ges. \\'ien. Vol. i3, p. 912 (3) (iS63). 
Mycetophila vitrea and Dynatosoma thoracica may belong here. 
60. Genus MYCOTHERA, Winnertz 
Mycothera. Winnertz, Verh. Zool.-bot. Ges. Wien, Vol. i3, p. 913 (39) (i863). 
Characters. — Head round, flattened in front, placed low upon the thorax; front broad, its 
anterior margin produced into a triangle, the apex of which reaches to the base of the antennae; eyes 
oval; ocelli small, the laterals contiguous to the eye margin, the middle one smallest, placed in a groove 
at the base of the frontal triangle; palpi incurved, four jointed, the first very small, the fourth longest; 
antennae nearly cylindrical, slender, arcuate, pubescent, 2-I-14 jointed, the basal joints differentiated, 
setose at the apex, the flagellar joints cylindrical, compressed. Thorax small, oval, highly arched; meso- 
notum short haired, without distinct setae; scutellum semicircular, with setae on' the margin; metonotum 
