2 ABLE OF Contents 207 



PAQK. 



observations show that the insect does not confine its operations to 

 the base of the trunk, 314. Old methods of prevention not suffi- 

 cient, 314. 



DiABROTiCA 12-PUNCTATA, the 12-spotted Diabrotica 315 



The beetle destructive to Chrysanthemums and Dahlias on Long 

 Island, 315. Occurs in such abundance as apparently to defy all 

 remedies, 315. Pyrethrum water suggested for it, 315. Reported 

 from Mississippi, as in j urious to peach foliage and the cabbage, 315 . 



Phytonomus punctatus : the Fungus infesting it 315 



The fungus killing the larva of this weevil, the clover-leaf beetle, 

 at Geneva, N. Y., was named by Dr. Arthur as JEntomophthora 

 Phytonomi, 315 . Subsequently referred by Dr. Thacher to JE. sphce- 

 rosperma, 315. Infests a large number of insects, 316. Some of 

 them are mentioned, 316 . The fungus may become epidemic, 316. 

 The clover -leaf beetle also attacked and killed by a fungus in 

 New Jersey, 316. 



MoNARTHRUM MALI, .the Apple-tree Bark Beetle 316 



The larval burrows in an apple tree described, 316. A beetle 

 from a burrow identified as this species, 316. The burrows differently 

 described by Mr. Schwarz, 317. The identified example may have 

 been associated with a more abundant species to which the bur- 

 rows are referable, 317. 



Aphis brassic-e, the Cabbage Aphis 317 



Abundance at Buffalo, N. Y., in 1890, 317. Its insect enemies, 317. 

 Its abundance in New Jersey, 317. Professor Smith on its antennal 

 structure, 317. Its extraordinary multiplication in Dakota in 1889, 

 318. Reference to descriptions of the sexed individuals, 318. 

 Remedies available against it, 318. 



Myrmbleon ? iMMACULATUS I a Strange Habitat for the Larva 318 



Eound beneath a carpet, at Coeymans, N. Y., 318. Differs in 

 appearance and habits from larvse previously seen, 318 . Does not 

 construct a pit-fall, 318. Its identification as Myrmeleon immacu- 

 laius, 319. Its life and habits while in confinement, 319. Its 

 hibernation, 319 . Could it have been an Ascalaphus ? 319 . Struc- 

 tural peculiarities, 319 . 



