380 
JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 11 
Hundreds of puparia have frequently been found in the soil around a 
single sugar-beet which means that large numbers of root lice have been 
destroyed. The larva is particularly efficient in that it concentrates 
its efforts on destroying only well developed root lice, thus preventing 
the birth of young root lice that would soon increase to enormous num¬ 
bers. It is not uncommon to find a large number of puparia in the 
soil around a sugar-beet plant with only the empty skins and secre¬ 
tions of the root lice to indicate their former abundance. 
It is certain that C. glabra larvae act as a very important check upon 
the increase of sugar-beet root lice and in many instances destroy 
entire colonies. 
^ NEW GALL MIDGES (DIPT.) 
By E. P. Felt, Albany, N. Y. 
The species described below comprise some unusual forms, especially 
the presumably predaceous Mycodiplosis packardi , which closely 
simulates the associated Retinodiplosis albitarsis, the latter with a most 
interesting larva. The types are in the New York State Museum. 
Allomyia n. g. The presence of circumfili, toothed claws, a third 
vein uniting with costa at the apex of the wing, triarticulate palpi and 
thirteen antennal segments, indicates a relationship with Cystiphora 
Kieff., from which the genus can be easily separated by the absence of 
a terminal spine on the short ovipositor. Type A. juniperi n. sp. 
Allomyia juniperi n. sp. The one female issued June 12, 1918, 
from a package of apical, burr-like galls on Juniperus received June 5, 
1918 from Ivan M. Way, Oxford, Colo. 
The gall is a small, apical, burr-like deformity with a diameter of 
5 mm. It differs from the larger rosette galls in that there are no dis¬ 
tinctly reflexed leaves. 
Female. Length 1.5 mm. Antennae extending to the base of the abdomen, 
sparsely haired, mostly yellowish and reddish, thirteen sessile segments, the fifth 
with a length two and one-half times its diameter, a subbasal irregular whorl of long, 
stout setae and at the basal third and apically low, fine, indistinct circumfili. Ter¬ 
minal segment produced, with a length over three times its diameter, the apex sub¬ 
acute. Palpi; first segment rectangular, the second quadrate, the third narrowly 
oval, the second and third with a series of stout, spiny processes apically. Mesonotum 
dark brown, almost black. Scutellum dark reddish brown, margined with dark 
brown. Postscutellum dark yellowish orange. Abdomen dark brown, the short 
ovipositor yellowish orange. Wings hyaline, subcosta uniting with the anterior 
margin near the basal half, the third vein, strongly curved distally, at the apex of the 
wing, the fifth probably forked. Halteres pale yellowish. Legs mostly pale straw, 
the distal portion of tibiae and the tarsi dark reddish. The one claw on the pos¬ 
terior leg of the specimen is unusually stout, strongly curved, unidentate and the pul- 
