60 DIPTERA 
Hind legs not thickened, the femora ciliate beneath, the tibie not 
shortened; thoracic bristles and hairs of abdomen, coxz and femora 
black, except in inferrupta; abdomen pollinose. . . s OWsxd e ls djs SEU Me RI EIE COLERE 
8. Scutellum with eight or six bristles; mesonotum only Vibe: 
its bristles strong and abundant . . . . . . . Dolor p qur E 9. 
Scutellum with four or six bristles; mesonotal bristles FONT and not 
conspicuous (sfigmali) . . . . . . PES Acc pu queer uU 
9. Pygidium minute; hairs of the abdomen black; WOUND vein 
complete; style of the antennz about two-thirds as long as the 
third joint . . . . : - OA. SCUTELLARIS, nov. sp. (1). 
Pygidium relatively larger, bliquily Mdcendiig hiis of the abdo- 
men whitish; second posterior cell very narrow at the base, the 
intercalary vein abruptly shortened; style nearly as long as the 
third joint ..... ...7. 2... e 5I UUMI S A TPRERUMAC NON a 
10. Discal cell complete, emitting three veins of which the intercalary 
may beevanescent. . . 4508728 29150 2. URP ACE MONEO COTES 
Discal cell open outwardly, the poen veinforked . . . . . . var. PETIOLATA, nov. var. (3). 
(1) Anthalia scutellaris, nov. sp. — Male. Length2 mm. Entirely black, rather opaque dusted, bristles wel - 
developed, wings sybhyaline, stigma distinct. Head rather hemispherical, eyes contiguous along thefront,face veryshort, —— 
excised by the mouth-opening up to the antennze ; proboscis retracted, or if porrect, not extending beyond the head, palpi 
rather long and broad and with three minute setz ; antennz two-jointed, the outer joint broadly orbicular, but slightly 
longer than the style ; ocellar bristles strong. Thorax bristly, the discal setule: prominent and relatively long, typically 
the following bristles present, but there may be some variation : four humeral. four posthumeral, seven notopleural, two 
dorsocentral, one postalar, eight scutellar ; pleurz almost entirely dark pollinose. Abdomen subopaque, its hairs black, 
Pygidium minute and not exposed.  Cilia of the hind femora longer than the diameter of the femur, tarsi entirely black and 
with black hairs. Halteres black. Wings with parallel sides, veins blackish, discal cell one-third longer than the 
narrow second basal, sections of the fourth vein proportioned 0.5 : 0.25 : 1 : r, of the fifth vein. 1.2 : 0.2: 1 : 1, anal 
crossvein parallel with the hind margin, anal vein thin. 
Female. Eyes broadly separated by the pollinose front, face less excised, facets uniform, thoracic bristles less 
pronounced, last four segments of the abdomen forming a short ovipositor, legs piceous, the front coxze and femora only 
fuscous. 
Numerous specimens from the flowers of pink currant (Ribes), Tacoma and Seattle, Washington, May 12-14, 1913; 
also from Ilwaco and Mt. Rainier, Washington. 
(2) Anthalia interrupta, nov. sp. — Male. Length 1.8 mm. Entirely black, subshining, scutellum with 
six bristles, abdomen with white hairs, pygidium relatively large, upper facets enlarged, style subequal to the orbicular 
third joint of the antennze, stigma distinct, discal cell pointed, intercalary vein shortened. Face broadly excised up to 
the antennz, proboscis scarcely projecting from the oral opening, palpi thick ; basal joint of the antennze minute, third 
joint very broadly oval, scarcely longer than deep and subequal in length to the style; ocellar bristles distinct. Thorax 
highly arched, its bristles rather prominent and black, about four humerals, five small subhumerals in a transverse row, four 
notopleurals, two dorsocentrals, six scutellars ; pleurze dusted but with a large shining sternopleural spot encroaching on 
the mesopleura. Pygidium obliquely ascending, as long at the two preceding segments together. Hairs of the coxz 
and cilia of the hind femora pale, the cilia equal in length to the diameter of the femur, hind tibiz straight and 
nearly as long as their femora, Calypteres dusky but fringed with pale hairs. Wings nearly hyaline, veins blackish 
stigma distinct, discal cell one-half longer than the narrow second basal, broad but tapering almost to a point at the 
apex, the second posterior cell much narrower than the third, intercalary vein extending two-thirds the distance to 
the margin, abruptly interrupted, second basal cell longer than the first, sections of the fourth vein proportioned 
0.55 : 0.2 : 1 : 1,3, of the fifth vein, 1.4 : 0.4 : 1 : 1.4, anal angle prominent. 
Female. Ovipositor segments very short. 
Numerous specimens, Kettle Falls, Washington, May 3, 1912, from flowers of wild cherry. 
(3) Anthalia stigmalis, var. petlolata, var. nov. — Anthalia stigmalis is widely distributed along the Pacific 
Coast, I have over four hundred specimens from Alaska, Idaho, Washington, Oregon and California, the species 
extending inland as far as Kendrick, Idaho. 4A series of specimens, ten males and eight females, from the summit of 
Moscow Mountain and from Craigs Mountain, both in Idaho, uniformly differ from the typical form in having the 
discal cell apically open, the intercalary vein joining with the fourth vein midway between the anterior crossvein and 
the tip of the wing. As the variation is constant and is not found in any of the other specimens this form may be 
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