59 
correspondents think that their date of appearance is usually about 
the middle of June. 
The melon caterpillar, Margaronia hyalinata, seems not to have been 
very abundant this year. At the station I have not observed it thus 
far, and, of the twenty or more adults bred out from larve-infesting 
cucurbits, all proved to be nitidalis. | 
The first lepidopterous cabbage pest to attract attention was the 
| Plutella cruciferarum. Uarve of this insect were quite abundant by 
| May 20 on cabbage and cauliflower. Pieris rape followed next, and by 
| the middle of June had gotten to be quite destructive. Larve of 
Pieris protodice have not been observed this year at the station, and 
only one adult has been noticed. 
Likewise Plusia brassice has been quite rare, but one larva having 
been observed. Pionea rimosalis has been somewhat destructive to 
cauliflower all during the spring and early summer. The cabbage 
aphis, Aphis brassice, has been but moderately abundant. 
June 1, | noticed that the variety plats of onions on the station 
grounds were being eaten by many small woolly larve. Specimens of 
these were placed in breeding cages, and were finally bred out to the 
adult condition, and proved to be the Spilosoma virginica. Larvee of this 
species were observed at various times feeding on cabbage, beets, toma- 
toes, and various garden vegetables. 
Phlegethontius (Protoparce) celeus has been quite common on tomatoes; 
but one larva of P. carolina has thus been taken at the station, and the 
northern species of these tomato worms seems greatly to predominate. 
Seedling onion and cabbage plants were badly damaged during the 
latter part of July and first of August by Thrips tabaci at the station. 
Onion tops were so chafed that they soon dried up. Their effect on 
young cabbage plants was to cause a curling and roughening of the 
leaves, and the plants were so greatly checked in their growth as to 
make it advisable to destroy them and replant the beds. 
The melon aphis, Aphis gossypii, has not been very destructive until 
recently. Beginning with August, complaints against this insect on 
late cucurbits have become somewhat general. 
The harlequin bug, Murgantia histrionica, has been quite abundant 
and destructive throughout the greater part of theseason. They were 
first discovered March 27 on Capsella bursa-pastoris, when mating had 
already begun. 
Adults of the squash-vine borer, Melittia satyriniformis, were observed 
May 23 among squash vines on the station grounds. Egg laying com- 
menced in a few days. Moths from this brood began to appear by July 
-18, and late squash are now infested with the second brood. 
The squash bug, Anasa tristis, has been a serious drawback to squash 
growing this year in many parts of the State. Adults were first noticed 
May 5. An unusual number seem to have passed the winter, and young 
from this brood were very abundant. 
Dg ee ec sk a ee A 
