MISCELLANEOUS NOTES ON TRUCK-CROP INSECTS. 95 
INJURIOUS OCCURRENCE OF THE PEA MOTH IN THE UNITED 
STATES. 
Prominent among the injurious occurrences of the year 1908 was 
the discovery of the pea moth (Enarmonia nigricana Steph.) for the 
first time in the State of Michigan. August 10 we received from Mr. 
J. E. W. Tracy, Bureau of Plant Industry, specimens of the larva of 
this species and its work in growing peas and pods from Charlevoix, 
Mich. 
Mr. Tracy wrote that he obtained the specimens on that day and 
some days earlier and that Mr. E. W. Coulter and others in that 
vicinity knew nothing of the identity of this insect, which was causing 
them considerable concern. The caterpillar first showed itself in 
very small numbers four or five years before, but it had increased 
rapidly until the year of writing, when 15 per cent of the peas were 
ruined. The insect appears to start operations by eating the embryo 
stem and then moves along the pod until it makes its exit and dis- 
appears. Early varieties of peas were the worst sufferers in the 
affected district. At the time of writing our correspondent found a 
less number of living larvse than previously. 
This appears to be the first record of the appearance of this insect 
in the United States, although it has been known as a pest in Canada 
for several years and has undoubtedly been present in our Northern 
States, where peas are grown, without having been recognized as 
anything new or unusual. 
A two-page account of this species has been published by the writer 
in Bulletin No. 33, pages 96-98, which includes a brief illustrated 
description of the moth and larva and a consideration of the distri- 
bution, nomenclature, history, habits, and remedies. 
This insect first came to notice near Toronto, Ontario, in 1893, and 
notices of its ravages in Canada were given in several subsequent 
years by the late Dr. James Fletcher in his report as entomologist 
and botanist of the Dominion of Canada. It is an importation from 
the Old World and is well established in New Brunswick and Nova 
Scotia as well as in Ontario, and is also recorded from Manitoba. 
The name of this species was omitted from the Dyar catalogue of 
Lepidoptera, but is included in Smith's Check List of Lepidoptera 
under No. 5702. In most publications the species is mentioned as 
Semasia nigricana. 
A NEW WESTERN ROOT MAGGOT. 
August 10, 1907, Mr. E. M. Ehrhorn sent from San Francisco, CaL, 
some radishes, the roots of which were affected by a maggot. The 
adults were reared September 3 to 20 and were referred to Mr. D. W. 
Coquillett for identification. They were first mistaken for Pegomya 
cepetorum, because of the very close relation of the two species, but 
