BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 31 



206. W[ALSH], B. D. Remarks by B. D. W. <Pract. Ent., February, 



1867. v. 2, p. 54. 



Comments on S. S. Rathvon's ' ; Bag- worms" (Pract. Ent., pp. 53-54); dis- 

 tribution and food-plants of Thyridopteryx ephemerceformis. 



207. W[ALSH], B. D. Habits of the tree-cricket (CEcanthus niveus). 



<Pract. Ent., February, 1867, v. 2, p. 54, figs. 



Characters of eggs and method of deposition ; characters, food-habits, and 

 figures of the imago. 



208. [WALSH, B. D.] Importing European parasites. <Pract. Ent., 



February, 1867, v. 2, pp. 54-55. 



Imaginary correspondence between Asa Fitch and John Curtis on the im- 

 portation of parasitic insects. 



209. [WALSH, B. D.j [Screw-worm.] <Pract. Ent., February, 1867, 



v. 2, p. 55. 



Answer to inquiry of L. D. Morse ; undetermined larva found in osage- 

 orauge seed; hoiniuivorous habits of Litcilia macellaria. 



210. [WALSH, B. D.] [Attacus cecropia.} <Pract. Ent., February, 



1867, v. 2, p. 55. 



Answer to inquiry of T. T. Smith ; characters of larva and imago of Attacus 

 cecropia ; food-plants ; method of issuance from cocoon ; nature of fluid 

 discharged when emerging from cocoon. 



211. [WALSH, B. D.] [Apple-worm.] <Pract. Ent., February, 1867, 



v. 2, pp. 55-56. 

 Answer to inquiry of W. C. Fish ; characters of the pupa of Sciara mail. 



212. [WALSH, B. D.] [Oak-gall.] <Pract. Ent., February, 1867, v. 2, 



p. 56. 



Answer to inquiry of W. Muir; characters of an undetermined cynipid gall 

 on oak. 



213. [WALSH, B. D.] [Cicada: Grape-vine Procris.] <Pract. Ent., 



February, 1867, v. 2, p. 56. 



Answer to inquiry of M. S. Hill; variations in the imago of Cicada [= Tibi- 

 cen] septendecim and in the song of the same; characters of the larva of 

 Procris [= Harrisina~\ americana. 



214. [WALSH, B. D.J [Nitidulidw.] <Pract. Ent., February, 1867, v. 



2, p. 56. 

 Answer to inquiry of W. H. S. ; food-habits of Ips fasciatm and Xitidula 



bipustulata. 



215. [WALSH, B. D.j [Turnip enemy.] <Pract. Ent., February, 1867, 



v. 2, p. 56. 



Answer to inquiry of F. T. Tember; characters and food-habits of Polydes- 

 mus complanalus. 



216. [WALSH, B. D.J [Wheat midge.] <Pract. Ent, February, 1867, 



v. 2, p. 57. 



Answer to inquiry of C. P. Wickersham; nature of the membrane envelop- 

 ing the full-grown larva of Diplosis tritici. 



