S. S. Haldeman on new Insects. 109 
Larva oval, plane above and beneath, elevation about one 
third the length, periphery vertical; pale flavous, the larger indi- 
viduals with a conspicuous dark dorsal vitta. 
Found upon the lower surface of the leaves of Sida (Abutilon) 
abutilon, to which the larva is immovably attached. | It is some- 
times so abundant that there are from 50 to 100 in half an inch 
square, causing the leaf to curl and die. The perfect insect is 
very active, walking and flying readily, and leaping from 1 to 14 
inches. It seems nearest allied to A. bifasciatus, Steph. When 
the imago first appears the wings are more translucent and the 
dark fascie: are entirely wanting, so that it might be taken for a 
distinct species. 
Burmeister’s figure of A. proletella, Zin., exhibits 2 nervures, 
probably because the wings were in contact when drawn, which, 
on account of their translucency, would allow the nervures of 
oth to be seen at the same time. Found in Pennsylvania from 
August to the middle of October. 
corni. Size and general appearance of A. abutilonea: body 
pale flavous: eyes black; wings pure white, without bands. 
Pennsylvania in September and October ; the larva and imago on 
the inferior surface. of the leaves of Cornus sericea. 
arva flavous, the dise of the larger individuals dark brown: 
the margin is ciliate with white. A great many are destroyed in 
the larva state by Amitus corni, Ha/d., a minute parasitic hyme- 
nopterous insect. 
Amitus, (a new genus.) Minute, robust, head transverse, eyes 
with distinct facets; palpi 0. Antenne shorter than the body, 
Verse impression. Wings covered with scattered hairs; about as 
long as the entire body, the greatest width of the anterior ones 
equalling one-third their length; widely ciliate from the apex to 
their middle on the posterior side: entirely without nervures ; 
