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JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 17 
worms being parasitized by this fly alone. Other parasites reared are 
Phorocera claripennis Macq. (Dipt.), Amblyteles seminiger Cress. 
(Hym.), and Euplectrus bicolor Swederus (Hym.). The last named was 
identified by Mr. A. B. Gahan of the Bureau of Entomology, and Dr. 
L. O. Howard informs us that it is an important parasite of cutworms 
in Europe. This is probably its first recorded appearance in North 
America. 
Agrotis ypsilon Rott., the Greasy Cutworm, was found occasionally 
along with the Spotted Cutworm, but not in numbers to do appreciable 
harm. When placed in rearing cans with A. c-nigrum, the Greasy Cut¬ 
worm larvae proved very carnivorous, rapidly devouring the Spotted 
Cutworm larvae. 
Agrotis c-nigrum has been known to injure limited cranberry areas 
occasionally in previous years, the outbreak in every case observed 
being on a bog on which the winter water had been held late, but no 
cranberry grower recalls a former instance of any such extensive injury 
as occurred in 1923. Evidently, this was a Spotted Cutworm year. 
It should be stated that, in addition to the marked activities of the pest 
described above, a few of the worms and scattering marks of their work 
on the blossoms and berries could be found on most of the Cape Cod 
bogs. 
This is the fourth species of cutworm now known to infest cranberry 
bogs seriously as a result of holding the winter flood very late, the others 
being the Army Worm ( Cirphis unipuncta), the Fall Army Worm 
(Laphygma frugiperda) and the Greasy Cutworm {Agrotis ypsilon). 
A DEVICE FOR INFLATING LARVAE 
By F. H. Mosher and J. E. R. Holbrook, Gipsy Moth Laboratory , 
Melrose Highlands, Mass. 
Since 1911 it has fallen to the lot of some of the assistants at the 
Melrose Highlands Parasite Laboratory to inflate the larvae, not only of 
the gipsy moth and the brown-tail moth, but of many other lepidopterous 
larvae of native species to be used for cabinet specimens. Many of these 
are hosts of the parasitic and predaceous insects imported to hold the 
gipsy moth and the brown-tail moth in check. 
With the devices first used the air pressure was obtained by a bulb 
pressed by the hand or by a bellows operated by the foot. The former was 
very tiresome and the operator had but one hand to arrange the larva 
and only one specimen could be inflated at a time. With the second 
