16 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
48. Walsh, B. D. The new potato-bug and its natural history. <Pract. 
Ent., 30 October, 1865, v. 1, x>p. 1-1- 
Record of the spread eastwards of Doryphora 10 -lineata; description of the 
egg; food-plants, enemies, and means against the same ; comparative char¬ 
acters of D.juncta and D. 10 -lineata; species of Meloidw injurious to the 
potato. 
49. [Walsh, B. D.] The joint-worm. <Pract. Ent., 27 November, 1865, 
v. 1, pp. 11,12. 
Reasons for disbelieving that the joint-worm is the larva of one of the Chal- 
cididce. 
50. Walsh, B. D. On pliytophagic varieties and phytophagic species, 
with remarks on the unity of coloration in insects. <Proc. 
Ent. Soc. Phil., November-December, 1865, v. 5, pp. 194-216, 
fig. See: <Amer. Journ. Sci., September, 1865, ser. 2, v. 40, 
pp. 282-284. <Ann. and Mag. Nat. Hist., November, 1865, 
ser. 3, v. 16, pp. 383, 384. 
Argues for the origin of races and species by phytophagic isolation ; refers to 
Datana ministra, D. contracta, HaUsidota tcsse11aris, H. antiphola [ = 17. tessel- 
laris ], H. liarrisii [=17. tessellaris ], Arhopalus [= Cyllene ] pictus, A. [= C. ] 
robinioe, A. infaustus [= C. decorus ], Callidium antennatum, C. janthinum, 
Conotrachelus nenuphar, Doryphora 10-lineata, and D. juncta ; unity of color¬ 
ation explained by assumption of a genetic connection between various 
species; figure showing bulhe on wing of Ichneumon. 
51. W[alshJ, B. D. [Cicada years.] <Pract. Ent., 25 December, 1865, 
v. 1, pp. 18-19. 
Answer to inquiry of M. S. Hill; Cicada districts of the United States, 
as given by Fitch in N. Y. Rept. I, p. 39; habits of C. [= Tibicen] sepien- 
decim. 
52. Walsh, B. D. Insects injurious to vegetation in Illinois. <T'rans. 
Ill. State Agric. Soc., 186£, v. 5, pp. 469-483, figs. 
Notes on injurious insects in Illinois in 1861; life-history and ravages of 
Leucania unipuncta. 
53. Walsh, B. D. The “Thrips*’ of the vine-growers. What is it? 
<Pract. Ent., 25 December, 1865, v. 1, pp. 20-21. 
The Tlirips of fruit-growers probably not a true Thrips; food-habits of 
Tlirips. 
54. Walsh, B. D. The grub-worm. <Colman’s Rural World, Decem¬ 
ber, 1865. S.-b., No. 1, p. 51. 
Habits, ravages, and means against Lachnosterna quercina [= fusca] ; its larva 
compared with that of IAgyrus relictus; vernacular names of the Lach¬ 
nosterna and of Allorliina nitida. 
55. Walsh, B. D. Borers. <Pract. Ent., 29 January, 1866, v. 1, pit. 
25-31, figs. 1-8. 
Remarks on the name “borer; ” figures, natural history, and means against 
Saperda bivittata [= candidal,, Chrysobothris femorata, Bostrichus [= Amphi- 
cerus ] bicaudatus, Algeria [== Sannina'] exitiosa, A. tipuliformis, Clytus [_= Cyl¬ 
lene] robinia!, C. [= C. ] pictus, and Cerasphorus [= Chion] cinctus ; need of 
State aid against injurious insects. 
