27 
ORDER THYSANOPTERA. 
Three distinct species of Tkripiche were taken on cotton. Two spe- 
cies, the wheat Thrips (Thrips tritici Fitch) and the apple Thrips 
(Phlceothrips malt Fitch) were taken in the blossoms, puncturing the 
stamens and corolla, but no serious injury seemed to follow their attack. 
The other species is apparently predaceous and was observed feed- 
ing ou the cotton Aleyrodes (A. gossypii). It is apparently undescribed, 
and may be characterized as follows : 
Thrips trifasciatus u. sp. 
Female. — Length 0.8 mm . Light brown; eyes strongly faceted, purplish-brown in 
certain lights; three basal segments of abdomen above, dark brown; segments 4, 5, 
and 6 white; apical segments light brown, the sutures dusky; legs, except hind 
femora towards tips, white; wings, linear, strongly fringed, without nerves, the 
ground color brown or fuscous, with three transverse white bands, i. e., the front 
wings have a white band at base, another at about two-thirds their length, and with 
the apices white. 
Habitat. — Near Utica, Miss. 
ORDER NEUROPTERA. 
The larva? of the lacewing flies are predaceous, feeding upon aph- 
ides, mites, minute caterpillars, and the eggs and larvae of other insects. 
They are commonly called aphis lions. 
In the family Hemerobiida? only a single species was discovered feed- 
ing on the cotton aphis (Aphis gossypii Glover). A full-grown larva 
was taken July 28, while it was feeding upon aphides. The following 
description was made: 
Body long and slender ; abdomen gradually tapering to a point at the apex, and 
measuring 8 mm in length; head small, with long curved pointed mandibles, medium 
sized eyes and two antenna extending to the middle thoracic segment; first tho- 
racic segment much longer than wide and only about half the width of the second 
and third, the latter segments being the widest of all, and each with a large whitish 
spot at the sides ; abdomen much longer than the head and thorax united, gradually 
produced into a point posteriorly and composed of 9 segments. 
During the night it spun an extremely loosely woven cocoon, of the 
finest silk, 6 mm long by 3 mm in width, in which, it transformed into a 
pupa, the pupa being whitish iu color, scarcely 4 mm long, and plainly 
discernible through the meshes of the cocoon. On August 4 the imago 
appeared, being just six days in the pupa state. 
It is apparently the insect described by Walker from Georgia (Brit. 
Mas. Cat. Xeuropt., p. 286) under the name Hemerobius liumuli Linn.: 
but as Hagen believes it to be distinct, and two species having the 
same specific name can not be retained, the specific name for this spe- 
cies may be changed to gossypii and it may be known in future as the 
cotton lacewing fly (Hemerobius gossypii). 
So less than five distinct species of the beneficial Chrysopuhe were 
taken on the cotton, the larvre of which feed on the cotton aphis, the 
eggs of various insects, and minute caterpillars. The larva of one spe- 
cies was seen eagerly seizing and sucking dry a minute lepidopterous 
