357 
I have figured. the hypopygium of the male last mentioned, which 
appears to present in the shape of the dorsal plate, with the truncate 
notch at its apex, quite a different form from other species of the 
group (PI. XLVII, Fig. 3, 5). 
NEOLEvcoPIs, subgen. n. 
Differs from Leucopis in having a moderately strong pair of prae- 
scutellar acrostichals, and a pair of reclinate ocellar bristles. 
Genotype, Neoleucopis pinicola, sp. n. 
NEOLEUCOPIS PINICOLA, Sp. Nn. 
Male and Female—Black, densely gray pruinescent, thorax subo- 
paque, dorsum of abdomen shining on fuscous portions. Head black, 
frons densely pale gray pruinescent; antennae and palpi black; second 
segment of former whitish pruinescent. Thorax not vittate. Abdomen 
with dorsum of basal and second tergites fuscous. Legs black, knees 
(narrowly) and bases of mid and hind tarsi in male and of all tarsi in 
female yellowish. Wings hyaline, veins fuscous. Calyptrae and halteres 
whitish. 
Frons a little over one third of the head-width, with very short pale 
hairs ; each orbit about one third the width of interfrontalia ; ocelli form- 
ing an equilateral triangle; ocellar bristles moderately long; lunule 
rounded above; third antennal segment not as long as high; genal bristle 
not surrounded with hairs. Thorax with two or three pairs of weak 
dorsocentrals, the anterior pairs weakest; about four series of setulae 
between the dorsocentrals; basal scutellar bristles much shorter than 
apical pair. Third and fourth wing-veins very slightly convergent apical- 
ly; penultimate section of fourth vein from one sixth to one fourth as 
long as ultimate and much shorter than last section of fifth. 
Length, 1.25—1.75 mm. 
Type and one male paratype, Stratford, Ill., June 22, 1917 (J. R. 
Malloch). Allotype, Urbana, Ill., May 23, 1885. Paratype, one male, 
Urbana, Ill., July 31, 1916 (J. R. Malloch). 
The author’s specimens were all taken on pine trees and the allotype, 
taken by some collector whose name is not on record, was beaten from 
pine also. Habits of larva unknown; probably predaceous on aphids 
on pine. 
