386 
JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 11 
Scientific Notes 
Apple tent caterpillar parasites. Two parasitic cocoons were taken from a nest at 
Corinth, N. Y., June 23, 1915. The cocoons are about a quarter of an inch long, sub- 
cylindrical with rounded extremities, chalky white with black markings as illustrated 
in figures 7 and 16 on pages 20 and 33 respectively of Technical Series No. 5, Division 
of Entomology, United States Department of Agriculture. The cocoon is, with very 
little question, that of Amorphota orgyice How., while the parasite which was reared 
from the cocoon proved to be Otacustes periliti Ashm. Both of these species have 
been earlier recorded as parasites of the white marked tussock moth, Hemerocampa 
leucostigma Sm. and Abb. in the above cited Bulletin. 
E. P. Felt. 
A Chigger Mite of Chrysopa Larvae. In December, 1917, Mr. Rodger C. Smith, 
of Milwaukee, Wisconsin, sent us three specimens of larvae of Chrysopa rufilabris to 
which were attached four larvae of the Erythraeidae belonging to the genus Erythraeus. 
These specimens were taken August 25, 1917, near the Soldiers’ Home, Milwaukee, 
Wisconsin. Mr. Smith states that they were of a bright red color before being put in 
alcohol. 
This is the first record to our knowledge of a specific parasitic mite of Chrysopa 
larvae. The shape of the cephalic shield and the arrangement of the coxal setae are 
quite different from that of the larvae of any American species of this genus. As 
the adult of this form is not known we hesitate to describe it as new. 
Albert Hartzell, Iowa State College, Ames, Iowa. 
p 
Anthracophaga distichliae sp. n. Male and female. Pale yellow, subopaque, 
marked with grayish black on disk of thorax, and brownish black on abdo¬ 
men and legs. Ocelli surrounded by a black spot; triangle with a dark brown streak 
from posterior lateral angle to or a little beyond the middle on each side, and a central 
stripe from anterior extremity to midway to anterior ocellus; third antennal joint 
black; arista fuscous at base, yellowish beyond; palpi fuscous, pale basally. Thoracic 
dorsum with five opaque black vittae in fresh specimens, the lateral pairs abbreviated 
anteriorly; a very distinct pale oval spot on middle of lateral margin above and be¬ 
tween the notopleural bristles; humerus with upper half black; anterior spiracle 
glossy black; sternopleura, mesopleura, pteropleura, hypopleura and metanotum 
largely black; scutellum with a large black spot on each side. Dorsum of abdomen 
black-brown, each segment with a narrow yellow posterior margin, which projects 
in the form of a short wedge anteriorly at middle. Legs variable in color, usually 
with femora and hind tibiae brownish on middle. Wings grayish, veins brown, 
slightly clouded. Halteres white. 
Frons over half the head-width; triangle very large, occupying nearly the whole 
width of vertex, and extending to anterior margin, the sides convex; entire frons in¬ 
cluding triangle, with short, black, setulose hairs; face in profile slightly concave, 
retreating below; antennae small, third joint as broad as long, slightly angulate on 
upper side at apex; arista tapered, with microscopic pubescence; eyes about 1.5 as 
high as long; cheek rugose, coarsely so posteriorly, half as high as eyes, with numerous 
short, black hairs; thoracic dorsum with short, setulose, decumbent hairs; meso¬ 
pleura with a few weak setulose hairs posteriorly; scutellum with six marginal bristles 
and numerous discal hairs. Abdomen with hairs like those of thorax. Legs normal, 
