11 
ville, Pa.; Newark, Del.; Belair, Kiver View, Cabin John, Marshall Hall, Green- 
wood, and Baltimore, and Howard, Washington, and Montgomery counties, Md. 
(Johnson) ; Kosslyn and Deep Creek, Va. ; District of Columbia; North Carolina; South 
Carolina; Kentucky; Wayne, Cobden, Anna, Carbondale, and Normal, 111.; Kansas 
City, Kirkwood, and Cadet, Mo.; Fort Scott, Onega, Wilder, Topeka, Fairmount, 
Edwardsville, Manhattan, Lawrence, and Connor, Kans., well distributed over the 
eastern part of the State; Ames, Adel, Davenport and Marcus, and Polk and Boone 
counties, Iowa; Omaha, Albany, and elsewhere in Nebraska; Cincinnati, Aberdeen, 
and Gallipolis, Ohio; Detriot, Mich.; Key West and Jacksonville, Fla. ; St. Anthony 
Park, Minn. (Lugger); and Pelee Island, Canada. 
Note. — In the southwest this species is replaced by a few others of the same genus 
and of very similar appearance and habits, but not injurious to the same extent. One 
of these, T. miicoreahec, is common in Arizona and southern California; and T. lexana 
Lee. is a well-known form in Texas, New Mexico, and Colorado. 
Fig. 
2.—Hydrcecia nitela: a, female moth; b, half-grown larva; c, mature larva in injured stalk; 
d, lateral view of abdominal segment of same; e, pupa— all somewhat enlarged (original). 
T. compacta Casey, according to Cockerell, breeds in Datura meteloides, and is 
common in the Mesilla Valley of New Mexico. It has not been reported to damage 
potato, perhaps because this vegetable is not much grown in that State. Without 
doubt all the species of Trichobaris feed on Solanacese. 
The potato stalk weevil is also known as potato stalk borer, and several other 
species of insects, the larvae of moths resembling those which produce cutworms, 
are sometimes known by the same name. The most common species (in literature) 
is Hydrcecia ( Gorlyna) nitela, known as the stalk borer, heart worm, etc. An equally 
common species in some localities which has practically the same habits is known as 
Hydrcecia nebris Guen. 
Even as late as 1897 Hydroecia nitela was referred to as the potato stalk borer, and 
as doing injury to potatoes in western Maine, damage being due to the larva's boring 
into the pith of potato stalks', causing them to w T ilt. It will thus be seen that although 
the stalk weevil and the stalk borers are entirely different, belonging to different 
groups, they do injury in a similar manner, and are therefore apt to be confused 
by those not thoroughly conversant with them. We present a figure of the species 
