REPORT OF THE STATE ENTOMOLOGIST I9OO IOO7 



the branches, but most of them were in the pupa stage. May 23 and 25 

 a great number of larvae ofCryptorhynchus lapathi were taken 

 from American willow and Carolina poplar. The smallest measured less 

 than a millimeter in length and ranged from that to five times as long 

 when extended. Most of the larvae were just beneath the outer bark, 

 some had entered the inner bark and a few were in the wood. The 

 mines were from 1 to 1 inch in length, irregular and winding. In 

 many instances 50 or more larvae were removed from young trees 



4 to 5 inches in diameter at the base. These trees were looked over 

 by me two or three weeks ago, and no indications of the presence of 

 borers were found; therefore the eggs probably hatched this spring. 

 May 27 Agrilus anxius had all entered the pupal stage, most of 

 them being pure white and but few had commenced to color. On May 



5 the larvae were all straightened out and shortened but none had entered 

 the pupal stage. May 28 the white marked tussock moth eggs com- 

 menced to hatch. On this latter date Saperda tridentata beetles 

 were emerging in great numbers from white elms, being somewhat later 

 than last year. May 30. Saperda tridentata, Magdalis 

 a r m i c o 1 1 i s and M . b a r b i t a have been emerging in great num- 

 bers from elm branches placed in boxes. May 31 larvae and pupae of 

 Saperda tridentata were taken from elms. June 1 Desmoce- 

 rus palliatus was observed mating and feeding on Sambucus hedge. 

 June 3 none of the beetles of Agrilus anxius had emerged, and 

 the pupae were hardly more colored than on May 27. June 6. The 

 birch aphis [Callipterus betulaecolens] has made its appear- 

 ance in great numbers. Magdalis armicollis and Saperda 

 tridentata have emerged in small numbers. Beetles and larvae of 

 Crioceris asparagi and C. 12-punctata were abundant 

 June 9. Two days later great numbers of English sparrows were 

 observed on the shoots and in places where they had been, few larvae or 

 beetles remained ; apparently they had been eaten by the birds. 

 Desmocerus palliatus is still emerging in small numbers. 

 June 15. From about 100 cocoons of the appletree tent-caterpiller 

 [Clisiocampa americana] collected at Hamburg (N. Y.) I 

 reared only 20 healthy adults. The rest were parasitized by P i m p 1 a 

 conquisitor, P. inquisitor, another species of Ichneumon rly 

 and a Tachinid. Fall web worm eggs [Hyphantria c u n e a] com- 

 menced to hatch July 3 and some of the worms were spinning their 

 webs. Two days later adults of Cryptorhynchus lapathi 

 were found on willow. Adults of Treraex columba were observed 



