FAM. EMPIDID/E 61 
11, Pygidium large, obliquely ascending; intercalary vein interrupted ; 
thoraxshining; legs blackish . . . . . . . . . . . . A. SCHOENHERRI, Zetterstedt. 
Pygidium minute; intercalary vein complete; thorax coated with 
pollen, at most subshining ; legs fuscous. : WS sca rider Nu M 12i 
12. Style one-sixth as long as the third antennal joint; veins delicate . . A. BurBosa, Melander gf. 
Style one-half as long as the third joint; veins coarse and yellowish. A. 1NORNATA, nOv. Sp. (1). 
Geographical distribution. 
I. A. bulbosa, Melander, Trans. Amer. Ent. Soc. Vol. 28, p. 349 [1902] Eastern North America. 
(Euthyneura); Coquillett, Proc. Ent. Soc. Wash. Vol. 5, p. 263 
[1903] (Euthyneura); Slosson, Ent. News, Philad. Vol. 14, p. 267 
[1903] (Euthyneura). 
2. A. femoraía, nov. sp. Washington, Idaho. 
3. A. flava, Coquillett, Proc. Ent. Soc. Wash. Vol. 5, p. 268 (1903); Slosson, Eastern North America. 
Ent. News Philad. Vol. 14, p. 266 (1903). 
4- 4. gilvihirta, Coquillett, Proc. Ent. Soc. Wash. Vol. 5, p. 268 [1903] Eastern North America. 
(Microphorus). 
5. A. inornata, nov. Sp. Washington. 
6. A. interrupta, nov. sp. Washington. 
7. 4. lacteipennis, nov. sp. Western North America. 
8. A. mandalota, nov. sp. Western North America, 
9. A. Schenherri, Zetterstedt, Fauna Ins. Lappon, p. 539 (1838); Dipt. Sc. Europe; North America. 
Vol. r, p. 252 (1842); Frey. Acta Soc. Sc. Fenn. Helsingfors, 
Vol. 31 (9), p. 5 [1998] (Euthyneura) ; Strobl. Mitteil. Naturw. Ver. 
Steiermark, Graz, Vol. 46, p. 74 [1909] (Euthyneura); Wahlgren, 
Ent. Tidskr. Vol. 3r. p. 8o [1910] (EuAyneura); Frey, Acta Soc. 
Fenn. Vol. 37 (3), p. 61 [1913] (Euthyneura). 
10. A. scuteilaris, nov. sp. Washington. 
II. A. sligmalis, Coquillett, Proc. Ent. Soc. Wash. Vol. 5, p. 268 (1903). Western North America. 
var. petiolata, nov. var. Idaho. 
4. GENUS ALLANTHALIA, NOV. GEN. 
Characters. — Small yellow species with the habitus of An/halia. Head spherical, eyes bare, 
widely separated on both front and face in both sexes, facets small; antenne inserted below middle of 
head. basal joint vestigial, third joint large, elongate oval, twice as long as wide, without style; face 
given the varietal name fetiolata. Stigmalis and this variety differ from scutellaris in having four scutellar bristles, the meso-, 
ptero- and sternopleurz mostly shining, the mesonotum less dusted, the hairs and bristles of the thorax reduced, there 
being but four notopleural, three humeral and one posthumeral bristles, and the wings pure hyaline. 
(1) Anthalia inornata, nov. sp. — Female. Length 2.25 mm. Piceous black in color, quite opaque, legs 
and halteres fuscous. Head brownish pollinose, subshining ; antennz black, the third joint large, orbicular, as deep 
as long, its style one-third as long as the joint ; mouthparts retracted, black ; hairs and bristles black. "Thorax dusted 
excepting a small spot on the sternopleura, hairs and bristles black, five notopleurals, three posthumerals, eight 
scutellars, discal hairs short but bristly, four rows of acrostichals ; abdomen subopaque except the last three segments 
which are not lengthened, hairs black. Front tibie swollen, hairs of the legs rather outstanding, mainly black, those 
of the tibie and tarsi in part paler, extensor cilia of the hind femora shorter than the diameter of the femur, flexor 
cilia long, bristle-ike and about thirteen in number. Wings large, lightly cinereous, veins brownish yellow and 
rather strong, no stigma, discal cell one-half longer than the narrow second basal, sections of the fourth vein propor- 
tioned 0.6 : 02 : 1 : 1, of the fifth vein, 1: 0.2: 1 : o.8, anal vein faint, posterior veins attaining the margin, 
second posterior cell broad at the base, basal cells equal, the discal crossvein oblique. 
One specimen : Almota, Washington, May 25, 1913. 
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