760 REPORT OF THE ENTOMOLOGIST OF THE 
History. The eggs are deposited within the tissue of the plants 
on which the adult thrips feed. | 
Both males’and females are wingless in the larval stages. The 
males always remain wingless. The females have four membran- 
ous wings when full grown. 
Food Plants: It is known to feed on Kale, Cauliflower and 
Sweet Clover (Melilotus alba) as well as on Cabbage and Onions. 
Remedies: The only remedy for them tried on cabbage was 
kerosene emulsion one part stock solution to ten parts water. 
This did not give as satisfactory results as desired because of the 
difficulty of getting the emulsion on all parts of the cabbage leaves. 
A better plan would be to thoroughly spray the onions with 
kerosene emulsion, and not attempt to spray the cabbage, as the 
damage to them is small. This pest can not be killed with poisons 
to an advantage. Dr. Lintner recommends the use of Pyrethrum 
on cabbage. 
Enemies. No parasites have been obtained from the onion 
thrips, and it has but few enemies that feed upon it. Indications 
of a fungous disease were found near Queens, N. Y., but the 
material was not preserved in condition that would permit its 
character to be positively determined. 
THE HARLEQUIN CABBAGE BUG. 
Murgantia Histrionica, Haun. 
(Ord. Hemiprera; Subord. Heteroptera; Fam. Pentatomide.) 
This insect, although a Southern cabbage pest, is mentioned — 
because Dr. Lintner predicted as early as 1882 that it would 
migrate to the north and become a cabbage pest in New York 
State, at least m the southern tier of counties. On September 
25 several adult and larval forms were found feeding on rad- 
ishes near Jamaica, N. Y. Mr. Lowe reported seeing it previous 
to this date near New Lots Road, Long Island. It injures cab- 
bage by puncturing the leaves similar to the way in which the 
*““Squash-Bug” injures the squash vine. 
The adult bug is about three-eighths of an inch long and nearly 
one-fourth of an inch wide. The head is black, with two small 
yellowish-white lines between the eyes. The thorax is orange 
