ENTOMOLOGICAL PAPERS OF DR. FITCH. 321 



1866. Beetle on the Grape. (The Country Gentleman, for August 

 30, 1866, xxviii, p. 142 — 11 cm.) 



The Brown Colaspis, Colaspis hrunnea Fabr., received from Walpole, 

 Mass., destroying grapevines, July 21. Dr. Fitch had frequently col- 

 lected it from the wild grapevine, the cinquefoil or Potentilla, and 

 Bome other plants, but not from the cultivated grape before the present 

 year. Dusting with ashes, soot, or some other powder, should prevent 

 its ravages. 



1866. Insects which Injure Grain^ Crops. — I. The Wheat- Midge. 

 (The Country Gentleman, for November 8, 1866, xxviii, p. 

 306 — 68 cm.) 



Gives an account of Cecidomyia tritici, and refers to C. graminis 

 Fitch and C. inimica Fitch, which are treated of more fully in the first 

 90 pages of the Sixth Report on Noxious Insects. Eight figures are 

 given in illustration, similar to those of the Report cited. 



1866. Insects which Injure Grain Crops. — 11, The Hessian Fly. 

 (The Country Gentleman, for November 29, 1866, xxviii, p. 

 354—60 cm.) 



Gives an account of the Hessian fly, Cecidomyia destructor S&j ,i\\\is- 

 trated with figures of the fly, diseased and healthy wheat-plants, the 

 larva and pupa, lower joint of a diseased wheat straw, and one with 

 sheath torn off showing the worms. Notices also two parasites upon 

 the Hessian fly, viz., ISemiotellus destructor ot Say, and another observed 

 by Mr. Herrick, of Yale College, inserting four or five of its eggs in a 

 single egg of the Hessian fly. This species Dr. Fitch proposes to 

 designate as Platygaster Herrickii. [Prof. Cook has observed a similar 

 egg-parasite of the Hessian fly (perhaps the same as the above), which 

 Dr. Packard refers, with doubt, to Platygaster error Fitch {Bull. No. 4, 

 U. S. Entomolog. Commis , 1880, p. 21, f. 1).] 



1866. Ants Enemies to Cut-Worms. (Transactions N. Y. State 



Agricultural Society, for 1865, xxv, 1866, p. 133.) 



Reply to letter of W. C. Watson, narrating an attack of a black ant 

 upon a cut-worm. Similar attacks observed by Dr. Fitch and explana- 

 tion offered ; also, injuries of the little yellow ant {Myrmica molesta) to 

 corn and other vegetation. 



1867. Currant Borers. (The Country Gentleman, for June 13, 1867, 



xxix, p. 386 — 14 cm.) 



Brief notice of the operations of the American currant-borer, Pseno- 

 cerus supernotatus (Say), in the pith of a currant stalk, and reference 

 for figure and a full account of it, to the 3d Report on the Noxious In- 

 sects of the State, in Trans. N. T. State Agr. Soc. for 1856, pp. 416-423. 



1868. Excrescences upon Grape Leaves. (The Country Gentleman, 



for August 20, 1868, xxxii, p. 127—41 cm.) 



Treats of four grape-leaf galls that had come under observation. The 

 first had been described in Trans. N. T. State Agr. Soc. for 1854, p. 

 41 



