FAM. EMPIDID/E 57 
7. T. nura, Melander, Trans. Amer. Ent. Soc. Vol. 28. p. 349 [1902] (Eu/hy- Eastern North America. 
neura); Coquillett, Proc. Ent. Soc. Wash. Vol. 5, p. 263 [1903] 
(Anthalia). 
8. T. opaca, Loew, Zeitschr. Ent. Breslau, Vol. 17, p. 40 (1864); Verrall, C. and S. Europe. 
Ent. Mag. London, Vol. 48, p. 26 (1912). 
9. T. fullata, nov. sp. (1). Washington, Montana. 
8. GENUS ANTHALIA, ZETTERSTEDT 
Anthalia, Zetterstedt, Fauna Ins. Lappon, p. 538 (1838); Dipt. Scand. Vol. 1, p. 249 (1842); Schiner, 
Fauna Dipt. Austr. Vol. 1, p. 78 (1862); Bigot, Ann. Soc. Ent. France (6), Vol. 9, p. 119 (1889); 
Melander, Williston Man. N. Amer. Dipt. 3 ed. p. 225 (1908). 
Characters. — Small, robust species, with large wings and large discal cell. Eyes bare, 
contiguous in the male the whole length of the front except for a small triangular space just above the 
antenne, the facets of the upper two-thirds large; face very short and broadly excised usually up to the 
antenna, cheeks narrow ; basal joint of the antennes» rudimentary, usually not visible, the middle joint 
very short, the third joint orbicular, compressed, very wide and short, with a terminal short, two-jointed 
arista which varies in length from as long as the third joint to about one-eighth as long; proboscis 
lengthened and often horizontally porrect, rarely surpassing the length of the head, rigid, palpi short 
and slightly swollen; ocellar triangle prominent, located in the male on the vertex, one pair of ocellar 
and one or two of vertical bristles. "Thorax rather or quite prominent, moderately pollinose, more 
thickly so on the pleure, several humeral, posthumeral and notopleural bristles present, only the 
posterior two dorsocentrals distinct, acrostichals numerous but short, scutellum margined with from 
four to ten bristles. Abdomen furnished with loose hairs, longer in the male, pygidium small or 
minute, a short ovipositor formed from the shining last four segments, lateral pits visible. Legs short, 
simple, front tibize usually slightly swollen, hind femora more or less ciliate above and below. Costa 
stopping at the fourth vein, with a strong basal bristle but with short marginal hairs, auxiliary vein weak 
and lying close to the first, the latter ending just beyond the middle of the wing, discal cell longer than 
the basals, emitting three posterior veins, the intercalary sometimes abbreviated and sometimes joined 
to the fourth vein when the discal cell is open outwardly, anal crossvein abruptly. meeting the anal vein 
which usually attains the margin although quite faint. 
Nomenclature and type species : 4. Schoenherri, Zetterstedt. Zetterstedt had three species 
when he proposed the genus Auihalia, — Gyllenhalli, Schoenherri and. $allida. Coquillet (1903) consi- 
dered the first of these as the type of Az£Zalia and thus threw the genus into the synonymy with 
Euthyneura, since Gyllenhalli is a very close relative of myrtilli, the monotypical species of Euthyneura. 
This would necessitate bestowing a new generic name on SchoenAherri and the series of subsequently 
discovered species related to it. Since Coquillett did not adopt the wisest course we have an instance 
(1) Trichina pullata, nov. sp. — Male. Length 2.25 mm. Black over all. Occiput lightly pollinose, its 
hairs fine, abundant, black ; third antennal joint broadly lanceolate, subequal to the style. "Thorax sparsely pollinose, 
hairs and bristles blackish, the lateral ones pale, twelve in dorsocentral row, ten pale scutellars, pleurz pollinose. 
Abdomen subshining, hairs long and pale, genitalia large, open, extending backward, the lateral valves posteriorly 
with a pronounced pecten beyond which they continue as a finger-like process. Legs simple, the hind tibiz slightly 
clavate, knees narrowly brown, hairs abundant, pale. Halteres black. Wings normal, somewhat smoky, stigma faint, 
not filling end of marginal cell. 
Type, Paradise Park, Mt. Rainier, August, 1917. A male from Gold Creek, Montana, July 29, 1918 and a 
female from Gardiner, Montana, August 17, 1918, differ in having the mesonotum shining. 
