82 
BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
697. Forbes, S. A.—Continued. 
<Rept. Ent. Soc. Out., 1883, p. 79. <Amer. Nat., April, 1883, 
v. 17, p. 419. 
Discussion of the food of various species of Carabidae and Coccinellidae under 
general circumstances and under conditions relating to particularly 
injurious species; summary and discussion of the food of each family as 
a unit; tables showing food under ordinary circumstances, under peculiar 
conditions, and under all the circumstances taken together. 
698. Forbes, S. A. The food of the smaller fresh water fishes. <Bull. 
No. 6, Ill. State Lab. Nat. Hist., May, 1883, v. 1, pp. 65-94. 
Summarization of observations on the food habits of some of the smaller 
fishes of Illinois; prevalence of limophagous habits. 
699. Forbes, S. A. The striped blister-beetle. <Farmer and Fruit 
Grower, 13 June, 1883. See: <Ibid., 27 June, 1883. 
Brief synopsis of life history of Epicauta vittata, with citation to Riley’s 
account in American Naturalist ('1878). Attention called to the service 
rendered by the larva in the destruction of grasshoppers’ eggs. 
700. Forbes, S. A. An enemy of wheat. The wheat bulb worm 
(Forbes), wheat-stem maggot (Lintner), Meromyza americana 
Fitch. <Prairie Farmer, 4 August, 1883. 
Outline history of Meromyza americana; account of serious injury in 1889 in 
Fulton County, Ill., and of its occurrence throughout a large area in 
central and southern Illinois; different stages described and figured; life 
history given; injury characterized. A parasite ( Ccelinius sp.) said to be 
effective in limiting its increase. In case the Meromyza should ever 
become generally destructive, rotation of crops, late sowing of wheat, 
and prompt burning of straw after threshing are recommended. 
701. Forbes, S. A. The zebra caterpillar ( Ceramica [=Mamestra ] 
picta). <Prairie Farmer, 11 August, 1883. 
Larvae reported as injurious to cabbages identified as Ceramica [= Mamestra~\ 
picta; quotes Riley and recommends pyrethrum as a remedy. 
702. Forbes, S. A. A uew insect disease. <Prairie Farmer, 6 Octo¬ 
ber, 1883. 
Destruction of Pieris rapee by a disease similar to flacherie of the silk worm. 
Study of this disease in the cabbage worm and in Datana larvae shows it 
to be bacterial, and experiments prove the disease contagious, and that it 
can be conveyed to healthy insects by artificial cultures. 
703. Forbes, S. A. Memoranda with regard to the contagious dis¬ 
eases of caterpillars and the possibility of using the virus of 
the same for economic purposes. <Amer. Nat., November, 
1883, v. 17, p. 1169. See: <Can. Ent., September, 1883, v. 15, 
p. 171. 
Summary of studies concerning a Micrococcus, abundant in Blissus leucopterus. 
704. Forbes, S. A. Entomological notes of the season. <Illiuois 
Crops for 1883, Circ. No. 106, Ill. Dept. Agric., p. 177. Reprint: 
<Prairie Farmer, 8 December, 1883. <Chicago Evening Journ., 
14 March, 1884. <Prairie Farmer, 22 March, 1884. 
Summary of the season’s work in economic entomology, including brief notes 
on injuries by the seed corn maggot, black-headed grass maggot, Solenop- 
