182 NEW YORK STATE MUSEUM 



f o 1 i i Thos.) appears to be quite common on a number of varie- 

 ties of maple and is causing some injury. — July 1. Black-headed 

 cabbage worms (Evergestis stramenalis Htibn.) are 

 causing some injury to turnips. Some caterpillars, probably fall 

 webworms (Hyphantria textor Harr. ) have appeared in 

 small numbers on an appletree. Plant lice are abundant on many 

 plants, such as apple, elm, box-elder, birch, wild cheiTy, burdock, 

 pigweed and dock. Though potato beetles were never so incon- 

 spicuous, there are plent}' of grubs.— J^/ii/ 22. The maple aphis 

 ( D r e p a n o s i p h u m a c e r i f o 1 i i Thos. ) appears to be the 

 cause of much pi^mature falling of leaves, the pests being gen- 

 erally distributed, occurring even in the tops of trees 60 feet 

 high. Plant lice have appeared in some numbers on red rose 

 bushes. — July 29. There is apparently another brood of black- 

 headed cabbage worms at work, if size is any indication. Plant 

 lice (probably Aphis brassicae Linn.) , are numerous on 

 turnips. The appletree plant louse (Aphis mali Fabr.) is 

 abundant and seriously injuring appletrees. The pests are spe- 

 cially abundant on new, tender shoots. Cherrytrees are very 

 little afl'ected, and plunjtrees more so, but in the latter case black 

 knot is also prevalent. Grasshoppers are generally scarce, though 

 in a few localities they are abundant. Cabbage butterfly 

 (Pier is rapae Linn.) has not been very abundant so far 

 this season. — Aug. j. A psocid (Psocus? venosus Burm.) 

 was found in clusters of 200 or more on the trunks of maple, and 

 a few were also observed on appletrees. In some cases the bark 

 of the tree seemed to be whitened as though it were partially eaten, 

 probably by the insects gnawing away the lichens and outer por- 

 tions of the bark. Larvae of the elm flea beetle (Disonycha 

 triangularis Say) are very plentiful on elmtrees near by 

 and have severely injured the foliage. — Aug. 12. A small, yellow- 

 ish leaf hopper ( ? jassid) is abundant on beans and has apparently 

 caused considerable j^ellowing of the foliage. Yellow-necked ap- 

 pletree worm (Datana ministra Drury) is present in 

 small numbers, and the same is also true of the fall webworm. 

 The brown and black woolly bears (Pyrrharctia Isabella 



