FAM. MYCETOPHILID/f<: 
33 
Characters. — Resembles Sciophila {Lasiosoma) but differs mainly in having a simple cubitus. 
Head small, flattened above ; eyes oval, slightly emarginate at base of the antennse ; ocelli three, placed 
high upon the front, widely separated, the middle one but little smaller than the laterals; antennae 
projecting forward, arcuated, 2 + 14 jointed, the basal joints differentiated, cupuliform, the flagellar joints 
rounded, short haired; palpi incurved, four jointed, apical joint longest, cylindrical. Thorax highly 
arched, with bristle-like hairs. Abdomen slightly constricted at the base, seven segmented, in the male 
cyhndrical, in the female slightly depressed. Legs moderately long, the tibia; with fine lateral setae and 
long spurs; the fore tarsi twice as long as the tibia;. Halteres large and with elongate knobs. Wings hairy, 
broad, longer than the abdomen; costa produced beyond the tip of R44-5: subcosta ends in the costa far 
distad of the small cell Ri , this cell short, R-M crossvein a little longer than its distance from the fork 
of ths media ; Sca (subcostal crossvein) a little proximad of the small cell ; cubitus simple (PI. 3, Fig. 23). 
The genitalia of the male rather slender and elongate, the lateral lobes prolonged, and curved forceps-like. 
Type species : M. halter ata. Staeger. 
Geographical distribution of species : 
1. M . atra/a, Strobl, Zem. Mus. Bosni. i Hercegov. Vol. 10, p. Sgj (i8gS). South Europe. 
2. M. halterata. Staeger, in Krojer, Naturh. Tidsskr. Vol. 3, p. 276 (i3) Europe. 
{Sciophila) (1840). 
halterata, Zetterstedt, Dipt. Scand., Vol. 11, p. 413,8 (34) {Sciophila) (i852) ; 
Van der Wulp, Dipt. Neerland , Vol. i, p. lyS [Staegeria) [iSt]]. 
3. M. Mikii, Kertesz, Wien. Ent. Zeit. Vol. 17, p. 293 (1898). Central Europe. 
4. M. iinicornuta, Dziedzicki, Pamietnik Fizyjograf. Vol. 4 (sep), p. 21 (17), Eastern Europe. 
pi. 9. f. 32-34 (Staegfria) (1884). 
Undescribed species also occur in North America. 
2. Genus PARVICELLULA, Marshall 
Parvicellula. Marshall, Trans. New Zeal. Instit. Vol. 28, p. iSgS (284) (1896). 
Characters. — Head oval. EN'es large, emarginate, nearly meeting below the antennae; pro- 
boscis short; palpi short; first joint very short, others about equal in length, except the fourth, which 
is rather longer ; front almost triangular ; three ocelli, the middle one much smaller than the others, 
arranged in a slightly curved line; antennte about as long as the thorax, 2 + 14 jointed, first joint of 
scapus very short, much broader than long, second joint about as broad as long, setose on upper sur- 
face, flagellum stout, joints rather longer than broad, densely pubescent. Thorax very highly arched, 
pubescent, setaceous on lateral and anterior margin; scutellum small, nearly circular, bordered poster- 
iorly with setae ; metathorax steep. Abdomen rather flattened, seven segmented, hirsute. Legs rather 
slender; coxae stout, slightly hairy on outer side; femora one-half again as long as coxae, rather slender, 
compressed, hairy; tibiae rather stout, in fore and intermediate legs shorter than the tarsi, in posterior 
legs about the same length as the tarsi, a few scattered spines on the tore tibiae, two ranges of a few 
spines on the intermediate tibiae and two ranges of well developed spines on the posterior legs; spurs 
stout, intermediate and hind tarsi with small prickles on inner side. Wings about as long as abdomen, 
rounded at apex, with fairly pronounced anal angle, surface thickly covered with hairs. Subcostal vein 
rather stout, less than one-third the length of the wing, Sca (subcostal crossvein) situated near its apex ; ' 
Ri ending at about two-thirds the length of the wing; base of the radial sector situated just bej^ond the 
subcostal cross vein; small cell Ri almost triangular; R4+5 running into the costa some distance before 
the apex; costa prolonged beyond its tip, but not reaching the apex; the media rather indistinct, apex 
