84 
Psyche 
[April 
Family Oscinidce 
Oscinis nitidissima Meigen. One specimen, July 17. The 
larvae of Oscinis develop in the stalks and roots of various plants, 
particularly grasses. 
Family Drosophilidce 
Drosophila quinaria Loew. Two specimens, July 20 and 
August 22. The larvae have been found in fruit, but the species 
may also develop in fungi. 
Drospohila affinis Sturtevant. One specimen, July 26. 
Sturtevant has bred this species from fruit and has found the 
adults attracted to exuding sap. 
Drosophila sp. One specimen, July 26. 
Hemiptera 
Family Miridce 
The two species were kindy identified by Professor H. H. 
Knight. 
Plagiognathus politus Uhler. One specimen, July 18. This 
leaf-bug feeds on various plants, including apple foliage. 
Pilophorus uhleri Knight. One specimen, July 28. 
Family Anthocoridoe 
Xylocoris cursitans Fall. One specimen, kindly identified 
by Professor H. M. Parshley. 
Family Reduviidce 
Reduvius personatus Linn. One specimen, July 14. This is 
a predatory species, often found beneath loose bark where it feeds 
upon other insects. 
Hqmoptera 
Family Aphididce 
Melanoxantherium medium Baker. A few specimens of 
aphids were seen and one taken on July 16th proves to belong to 
this species which occurs on poplar. 
