REPORT OF THE STATE ENTOMOLOGIST 1905 



141 



attack combined with severe injury from the extremely cold 

 weather of winter before last. Tent caterpillars (Malacosoma 

 americana Fabr.) appeared in larger numbers than last year. 

 — May 26. The cottony maple aphis (probably Pemphigus 

 a c e"r i f 1 i i Riley) is abundant though not much injury has been 

 indicted at present. The insects are flying considerably. Striped 

 cucumber beetles (Diabrotica vittata Fabr.) are increas- 

 ing in numbers and elm leaf beetles are confining their operations 

 largely to the tops of the trees. Cabbage worms are very abund- 

 ant and corn root worms (PDiabrotica longicornis 

 Say) are proving destructive. Tussock caterpillars (Hemero- 

 campa leucostigma Abb. & Sm.) are exceedingly abundant 

 and correspondingly injurious to the maples. — July 2. Mosquitos 

 appeared for the first time in large numbers June 26. Black flea 

 beetles (Epitrix cucumeris Harr.) are forsaking the 

 tomato plants. Potato beetles are causing some trouble. Plant 

 lice (Aphis mali Linn.) are proving quite injurious to apple- 

 trees. — July 5. Black flea beetles have again appeared in numbers 

 on tomato plants and the tussock moth females are depositing eggs. 

 Beans except limas are being severely injured by a small green 

 louselike insect (possibly the garden flea, S m y n t h u r u s hor- 

 tensis Fitch). The young of striped cucumber beetles are ex- 

 ceedingly abundant and plant lice have almost completely destroyed 

 the foliage on many appletrees. It is very dry and hot and appears 

 to be especially favorable to elm leaf beetles, as the fence tops and 

 sidewalks are literally covered with the grubs seeking favorable 

 places for the final changes to the beetle. The cottony maple 

 aphis (Pemphigus a c e r i f o 1 i i Riley) or the maple Phena- 

 coccus (Phenacoccus acericola King) is proving quite 

 injurious to maple foliage. Tussock moth larvae have devoured 

 all but the main veins of many leaves. — July 18. Saddle-back 

 caterpillars (S i b i n e stimulea Clem.) are unusually abundant 

 on corn, devouring the leaves very rapidly. — September 5 



Wyoming county [W. H. Roeper, Wyoming] — Forest tent 

 caterpillars (Malacosoma disstria Hiibn.) appeared May 

 9 and are remarkably scarce. The bud moth (Tmetocera 

 ocellana Schiff.) has caused a great deal of injury in this 

 locality and the codling moth (Carpocapsa pom 011 el la 

 Linn.) is inflicting some damage. Another insect (probably the 

 steely flea beetle, Haltica chalybea Illig.) is working in 

 grape buds and destroying them. — June 5 



