56 Psyche [April 
lands, Mass., June 15, ’14, and May 20 to June 2, 15, placed in 
collection of author and the Gypsy Moth Parasite Laboratory. 
(Paratype) one female taken at Amherst, Mass., by unknown 
student at Massachusetts Agricultural College, during May or 
June, 1914, placed in collection of that institution. With the 
exception of the Amherst specimen, the others were taken by 
Mr. R. T. Webber, after whom this fine species is named. 
Sciasma frontalis sp. nov. 
Shining bluish black, destitute of pollen. Length, 4 mm. 
Front one and one-third times as wide as either eye, frontal 
bristles descending to middle of second antennal joint, outside of 
these an anterior pair of proclinate and a pair of reclinate bristles. 
Ocellar bristles very weak, directed divergingly forward, frontal 
vitta about four-fifths as wide as sides of front. Parafrontals to 
base of second antennal joint opaque black, parafacials fulfous, 
eyes bare. Sides of face on lower half bare, about two-fifths as 
wide as the frontal vitta, facial plate deeply concave, hardly one- 
half as wide at base of antenne as at the vibrisse. Antenne 
orange yellow, the second joint nearly as long as the third, arista 
black, thickened on the basal fourth to one-third, the penultimate 
joint broader than long. Vibrissz cruciate, placed on a level with 
the front edge of the oral margin, diameter of head at vibrissz about 
as long as at base of antennee, cheeks one-tenth as wide as the eye 
height. Thorax shining bluish black, not vittate, one postutural 
and two sternopleural macrochetze. Scutellum bearing a single 
pair of long marginal and a shorter apical pair of macrochete. 
Legs black, except the front coxee and femora which are yellowish, 
hind tibiz pectinate with two or three widely separated short 
bristles. Abdomen flattened, somewhat conical in shape, clothed 
with short appressed bristly hairs, several weak macrochzete on 
margin of the fourth segment, the genitalia large and bulbous, 
curving forward beneath the fourth segment. Wings to tip of 
the second longitudinal vein wholly smoky brown, the remainder 
hyaline, veins destitute of setule, apical cell closed, the apex of 
third longitudinal vein obsolete. Anterior pair of calypteres sub- 
hyaline, the posterior pair smoky brown. 
Described from a single female (Holotype) taken by the writer 
at West Springfield, Mass., August 13, 1915. Placed in the col- 
