cocoons were found abundant in early-set cabbages near Fort Col¬ 
lins on June 10, this year, and the moths began emerging in our 
breeding cages on June 10. Last fall moths were reared as late as 
August 3. If the insect hibernates as a chrysalis [Fig. 8 d], there 
must have been a brood after the last date, so this insect is at least 
two, and probably three or four brooded, here. This insect seems 
to be increasing in numbers, and it would not be strange if it 
should become a serious pest, especially upon young cabbages, un¬ 
less prompt action is taken to check its increase. 
There is one reason, however, for hoping that it will not soon 
become seriously abundant, and that is, that there are in this locality 
a number of parasites preying upon it in the preparatory stages. In 
the Department of Agriculture report for 1883, p. 130, Dr. Riley 
mentions having bred from this insect a small hymenopterous para¬ 
site, Limneria cinnulipes Cr. From larvae brought into the labora¬ 
tory here last summer, were reared specimens of *Smicra delira Cr., 
*Limneria dubitata Cr., * Phseogencs discus Cr., and a species of 
* Ptcrornalus. 
The remedies are the same as for the preceding species. The 
applications should be made early, so as to destroy the first brood, 
and thus prevent the increasing numbers of the succeeding broods. 
FLEA-BEETLES. 
(The Two-Striped Flea-Beetle, Systena tceniata Say.) 
Bibliography and Synonymy.—As given by Geo. H. Horn, M. D., in Trans. Am. Ent. 
Soc., Voi. XVI., p. 318: 
S. tmniata , Say, Long’s Second Expedition, p. 294 ; edit. Lee., i., p. 195. 
S. blanda , Mels., Proc. Acad., iii., p. 164. 
S', ligata , Lee., Pacific R. R. Rep., 1857. p. 68. 
S. ochracea, Lee., Proc. Acad., 1858, p. 87. 
S. mitis. Lee., Proc. Acad , 1858. p. 87. 
S. b'tceniatci, Lee., Col.. Kan., 1859, p. 36. 
S. pallidula , Boh., Eugen. Resa, p. 192. 
This is one of the worst flea-beetles that gardeners have to con¬ 
tend with in Colorado, and, at the present time (June 24), is doing 
serious injury to the small potato plants in the College garden. 
The mature insect is shown much enlarged in Fig. 9. The actual 
length varies from l-8th to 7-48ths of an inch. Viewed with the 
naked eye, the beetle appears black in color, with a reddish brown 
head and thorax, and a distinct light } 7 ellow line running nearly 
the entire length of each wing cover. 
Prof. Bruner, of the University of Nebraska, speaks of this 
insect as very variable in its color, some specimens being almost 
white. The color of those taken here have been very uniform, 
and as above stated. 
This flea-beetle, though widely distributed through the United 
States, seems to do its chief injuries in the West. The specimens 
in the collection here were taken by myself at Fort Collins, North 
* Determined by W. H.. Ashmead, Dep. of Agr., Washington, D. C. 
