REPORT OF THE STATE ENTOMOLOGIST 1904 417 



beetle (Doryphora lo-lineata Say) have appeared. 

 Tobacco thrips are causing considerable injury and cabbage but- 

 terfly larvae are fairly abundant. Caterpillars of the 8 -spotted 

 forester are rather rare, and the same is true of the swellings pro- 

 duced by the grape gall fly. — June ii. Colorado potato beetles 

 were first observed June 12, and they do not appear to be at all 

 numerous. — June 18. San Jose scale (Asp-idiotus per- 

 n i c i o s u s Comst.) is rather abundant in this section and has 

 caused a great deal of injury. Colorado potato beetles are not 

 numerous and cabbage butterfly larvae are scarce. The tobacco 

 thrips seems to have disappeared from cabbage and lettuce. — 

 June 25 



Rockland county [S. B. Huested, Blauvelt] — Pear psylla 

 (Psylla pyricola Forst.) does not appear to be very abund- 

 ant this year. Bartlett trees appear to have nearly all died, and 

 though this may be due to neglect, the severe psylla injury of last 

 year in connection with the unusually cold weather during the 

 winter, is ample cause for most deaths. Plant lice have not 

 appeared but tent caterpillars (Malacosoma americana 

 Fabr.) have been abundant. Plant lice are much less numerous 

 than last year. — June j 



Warren county [C. L. Williams, Glens Falls] — Pear psylla 

 (Psylla pyricola Forst.) and plant lice were first observed 

 in relatively small numbers in early June. June beetles (L a c h - 

 nosterna sp.) have been much less abundant than last year. 

 Cold weather seems to have delayed the appearance of rose beetles 

 (Macrodactylus subspinosus Fabr.) , as only an ad- 

 vanced scout or two has appeared up to date. — Jtme 6. The 

 rose beetles appeared 10 days later than last year and are not 

 quite so destructive. The potato stalk borer (Papaipema 

 n i t e 1 a Guen.) is causing some damage in corn fields. Plant 

 lice are increasing somewhat in numbers. Honeydew is very 

 abundant on white elm, probably indicating many elm aphids 

 (Callipterus ulmifolii Mon.) . The elm leaf beetle 

 (Galerucella luteola Miill.) has become well established in one 

 or more quarters of the village. Rose beetles are not as abundant 

 as last year. — July 5. Larvae of the elm leaf beetle are full grown 

 and traveling on the tree trunks. — July ip 



Westchester county [Frank R. Calkins, Ossining] — Black flea 

 beetles (Crepidodera cucumeris Harr.) were first ob- 

 served on tomato plants June 8, and on the loth had eaten out 

 large portions of the foliage. Larvae of the white marked tussock 



