' 
them as I find them with the hope that some one into, whose hands 
this report falls may be able to settle this point satisfactorily by 
finding the species. 
Genus CHAITOPHORUS. Koch. 
This genus is distinguished by the following characteristics: 
Pront wings with three discoidal veins, the third twice forked; the 
posterior wings with two branch veins. Antennae seven-jointed, not 
on tubercles, of medium length, usually a little shorter than the body, 
pilose or hairy; the seventh joint setaceous and longer than the sixth. 
Honey-tubes tuberculiform or obsolete. Beak of moderate length. 
Bodv usually hairy, and sometimes roughened by small tubercles. 
Chaitophorus negundinis. Thos. 
Winged Individual (in glycerine).—Wings very thin and delicate, 
and veins very slender; the costal vein bends outward from the base 
to the insertion of the second discoidal vein; the stigmatic vein starts 
from the stigma far back near the middle, curves slightly and grad¬ 
ually for a short distance and is then almost straight to the apex of 
the wing; stigma very long and slender; veins and stigma pale yel¬ 
lowish. Antennae nearly as long as the body, sparsely covered with 
long stiff hairs. Honey-tubes short. Apparently greenish. 
Found at Peoria, Illinois, in June, by Miss Smith, on Negundo 
aceroules (box elder). 
Chaitophorus populicola, Thos. • 
Winged specimens. Antennae not very long, somewhat hairy. 
Wings’ transparent, but along each discoidal vein there is a broad 
smoky border; stigma dark; when examined by a strong power the 
wings appear to be covered with scales; when examined by an ordi¬ 
nary pocket lense they present a very pretty appearance, as though 
