199 
together in this brief paper. While the work of the various insects La 
generally understood, many of their habits are not known, are indeed 
entirely new to me, and. so far as my researches in enconomic literature 
have gone, are as yet unknown to others. 
DIPLOTAXIS HARPERI AS A STRAWBERRY PEST. 
Specimens of this Scarabaeid came to me May 24 from Campbells- 
burg, Ind.. through the Practical Farmer and Fruit Grower of Grand 
Rapids, Mich. The accompanying letter from Mr. Brown stated that 
they were injuring his strawberries and had already done some injury 
to his wheat; that they attacked the smaller and weaker plants over 
his 2^-acre field of berry plants and very quickly destroyed them. A 
subsequent letter explained that the beetles remained about three 
weeks. They fed at night and in the daytime buried themselves an 
inch or two below the surface of the ground. As high as two dozen 
specimens were found at a time on a single plant. The beetles appeared 
on the wheat first, but as it became too tough they migrated to the 
newly set strawberry field near by. An old strawberry patch adjoin 
ing this one was not harmed. The soil is a light clay loam and the 
beetles were not noticed to appear in any one place, but appeared to 
be equally distributed over the whole piece. Paris green was tried, 
but with no evident effect. 
The species is closely allied to Lachnosterna fusca, and its nocturnal 
habits appear to be the same. The form is that of Lachnosterna, but 
the beetles are not much larger than the rose-chafer. Our college 
collection contains specimens from Michigan, Illinois, and the District 
of Columbia. 
A DIPTERON RASPBERRY GTRDLER. 
Early in May a letter from a Lansing fruit-grower reached me, from 
which the following is taken : 
A few days ago I noticed that some of the young shoots of my raspberry canes 
were withering. On examination I found the cause to be a small worm or grub 
about an eighth of an inch long and as large as a small needle. It seems to enter 
the shoot at the tip and works its way downward for several inches and then makes 
a complete circle near the outside of the shoot so close to the bark that it can be 
distinguished by close inspection without breaking the shoot. Here the worm is 
found, and of course the shoot dies. 
The next day the berry patch was visited, and I found that about half of 
the young shoots had already been destroyed by the maggot. The keeper 
had guarded the field closely, and as soon as a shoot wilted had broken 
the stems off and burned them. In fact, he had been so vigilant in the 
work that I was unable to secure but few specimens for myself. At 
this time the maggots were about 5 ram long, white, with black jaws, 
truncated posteriorly, and sloping gradually to the pointed head. In 
general appearance they resemble very closely the larva* of Anthomyi 
idee. They work only on the young shoots of the black varieties of 
