BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
125 
12G4. Thomas, C. Entomological notes. No. 1. <Prairie Farmer, 1861, 
[v. 23], n. s., v. 7; 25 April, p. 268; 2 May, p. 284. S.-b. No. 2, 
pp. 46-47. 
Remarks on the relations of insects to plants; canses of increase of injurious 
insects; rotation and separation of crops as a means against insects. 
1265. Thomas, C. Entomological notes. No. 2. <Prairie Farmer, 16 
May, 1861, [v. 23], n. s., v. 7, p. 317,2 figs. S.-b. No. 1, pp. 43-44. 
Description of larva and imago of Elciteridce; list of species found in Illinois; 
descriptions of some of them; means against larvse of Elaters. 
1266. Thomas, C. Entomological notes. No. 3. <Prairie Farmer, 
June, 1861. S.-b. No. 2, p. 48. 
Asilus sp. attacking elaterid; description of Melolontliidce; list of species 
found in Illinois; describes Lachnosterna pilosicollis [=/nstis], L. ballet, 
and L. quercina [= fmca~\ ; their habits; description and habits of the 
larva of L. quercina [=/wsca] ; habits and ravages of Melolontlia vulgaris ; 
replacement of one genus by another in opposite faume. 
1267. Thomas, C. The army worm. <Prairie Farmer, 1861, n. s., v. 7, 
p. 363. 
1268. Thomas, C. The army worm. <Prairie Farmer, 1861, n. s., v. 7, 
p. 393. S.-b. No. 1, pp. 21-22. 
Description and figure, seasons, habits, and means against the larva of Lcu- 
cania unipuncta; figure and description of the pupa. 
1269. Thomas, C. The army worm. <Illinois Farmer, September, 1861. 
Characters of larva, pupa, and adult of Leucania unipuncta ; preventive. 
1270. Thomas, C. Further from the army worm. <Prairie Farmer, 
1861, n. s., v. 8, p. 100. 
Notes concerning the habits of Leucania unipuncta in Jackson County, Ilk, 
in 1861. 
1271. Thomas, C. The army-worm question. <Prairie Farmer, 1861, 
n. s., y. 8, p. 293. 
Discusses the question of the hibernation of the egg of Leucania unipuncta ,* 
considers the species single brooded. 
1272. Thomas, C. Army-worm question continued. <Prairie Farmer, 
1861, n. s., y. 8, pp. 306-307. 
Argues against egg hibernation of Leucania unipuncta and in favor of pupal 
hibernation. 
1273. Thomas, G. Insects injuring field crops and forecasts in refer¬ 
ence thereto for the next year. <Farmers 7 Eeview, 24 Novem¬ 
ber, 1881. 
Predicts the appearance of Leucania unipuncta in a moist season following a 
dry one. 
1274. Thomas, C. Aphides. Plant lice. <Prairie Farmer, 18 Janu¬ 
ary, 1862. S.-b. No. 2, pp. 104-105. 
Characters, habits, and hibernation of Aphis avencs [= Nectarophora granaria~\. 
1275. Thomas, C. Aphides. Plant lice. <Prairie Farmer, 1 Febru¬ 
ary, 1862. S.-b. No. 2, p. 62. 
Characters of Psyllidae; describes Psylla pyri and its early stages; its 
habits and means against its injuries. 
