40 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
303. W[Alsh], B. D. Scientific nomenclature. <Pract. Ent., July, 
3867, v. 2, pp. 105-106. 
Criticism of the practice of establishing new genera upon slight characters, 
as illustrated by the American silk-worms. 
304. W[alsh], B. D. Currant plant-lice (Aphis ribis). <Pract. Ent., 
July, 1867, v. 2, p. 106. 
Method of work of Aphis [= Hyzus~\ ribis. 
I 
305. [Walsh, B. D.] [Lucanus elaphus.] <Pract. Ent., July, 1867, v. 
2, p. 107. 
Answer to inquiry of S. Havcraft; characters and habits of Lucanus elaphus ; 
rarity of the 9 ; use of prolonged jaws in $ insects. 
306. [Walsh, B. D.] [New York weevil.] <Pract. Ent., July, 1867, 
v. 2, p. 107. 
Answer to inquiry of T. Gregg ; habits and distribution of Ithycerus novebora- 
censis. 
307. [Walsh, B. D.] [Codling-moth.] <Pract. Ent., July, 1867, v. 2, 
p. 107. 
Answer to inquiry of H. Morey; number of broods, habits, etc., of Carpocapsa 
pomonella. 
308. [Walsh, B. D.] [Hickory borer, etc.] <Pract. Ent., July, 1867, 
v. 2, p. 107. 
Answer to inquiry of T. Wiggins; times of emergence of Clytus [ —Cyllene~\ 
piclus and C. [=61] robiniee ; habits of Corydalus cornutus. 
309. [Walsh, B. D.] [Wasps.] <Pract. Ent., July, 1867, v. 2, p. 107. 
Answer to inquiry of G. W. Smith ; food-habits of digger-wasps. 
310. [Walsh, B. D.] | Parasitic flies, etc.] <Pract. Ent., July, 1867, 
v. 2, pp. 107-108. 
Answer to inquiry of S. P. Monks; method of transformation of parasitic 
Hymenoptera; use of Latin plurals for English words. 
311. [Walsh, B. D.] [Workers among Hymenoptera.] <Pract. Ent., 
July, 1867, v. 2, p. 108. 
Answer to inquiry of W. V. Andrews; economy of workers among the social 
Hymenoptera. 
312. [Walsh, B. D.] [Cut-worms.] <Pract. Ent., July, 1867, v. 2, p. 
108. 
Answer to inquiry of Y. Abbey ; means against Ayrotis sp. ? 
313. [Walsh, B. D.] [Potato-beetle enemies.] <Pract. Ent., July, 
1867, v. 2, p. 108. 
Answer to inquiry of W. Smith ; scutellerid enemy of larva of Doryphora 10- 
lineata ; katydids as an enemy of the same. 
314. [Walsh, B. D.] [Black-bug.] <Pract. Ent., July, 1867, v. 2, p. 
108. 
Answer to inquiry of J. R. Tewksbury; characters and habits of Pirates 
— Melanolestes] picipes. 
