284 
BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
2039. Riley, 0. V. The chinch bug. <Amer. Agric., November, 1881, 
v. 40, p. 476, figs. 1-3. S.-b. No. 42, pp. 21-23. 
Ravages, food-plants, and natural history of Blissus leucopterus ; descriptions 
and figures of its several stages and of dimorphic form of the imago; effect 
of wet weather upon it. 
2040. [Riley, C. V.] Retarded development in insects. <Amer. Nat., 
[3] December, 1881, v. 15, pp. 1007-1008. Reprint: <Proc. 
Amer. Assoc. Adv. Sci. for 1881, [13 October], 1882, v. 30, pp. 
270, 271. Notice: <Gardener’s Chronicle, 27 May, 1882, v. 17, 
pp. 708-709. S.-b. No. 42, p. 31. 
Eggs of Caloptenus spretus retained their vitality four and one-half years un¬ 
der abnormal environment and then hatched on exposure to normal con¬ 
ditions ; speculations on the cause of the phenomena of retardation of de¬ 
velopment. 
2041. [Riley, C. V.] Preparation of Diptera. <Amer. Nat., [3] De¬ 
cember, 1881, v. 15, p. 1008. 
Notice of paper of J. Mik. 
2042. [Riley, C. V.] Another herbivorous ground-beetle. <Amer. 
Nat., [3] December, 1881, v. 15, p. 1011. 
Anisodactylus confusus injuring strawberry-plants in California. 
2043. [Riley, C. V.] A disastrous sheep parasite. <Amer. Nat., [3] 
December, 1881, v. 15, p. 1011. 
A parasite ( Tricliodectes ovis ?) doing great injury to sheep in Illinois. 
2044. [Riley, C. Y.] Locusts in the West. <Amer. Nat., [3] Decem¬ 
ber, 1881, v. 15, p. 1013. 
Caloptenus spretus scarce in Colorado and Kansas; Camnula pellucida abxm- 
dant on the Pacific coast; destructiveness of locusts in many parts of 
South America and of Pachytylus migratorius in Turkey; means adopted 
against the latter. 
2045. [Riley, C. Y.] Structure of the claw in •Psocina. <Amer. Nat. } 
[3] December, 1881, v. 15, pp. 1013-1014. 
Notice of paper of H. A. Hagen. 
2046. [Riley, C. Y.] Insect collection for sale. <Amer. Nat., [3] De¬ 
cember, 1881, v. 15, p. 1014. 
Notice of the collection of Coleoptera left by C. Trabrandt. 
2047. Riley, C.Y. Peach-tree bark-borer. Important note from Prof. 
C. V, Riley. <Rural New Yorker, 24 December, 1881, v. 40, p. 
866. S.-b. No. 42, p. 13. 
Habits and ravages of Phlocotribus liminaris ; means against bark-borers. 
2048. Riley, C. Y. The chinch-bug. <Amer. Agric., December, 1881, 
v. 40, p. 515, figs. 1-4. S.-b. No. 42, pp. 23-20. 
Figures Anthocoris [= Triphleps'] insidiosus and Harpactor [= Hilyas~\ cinctus 
as enemies of Blissus leucopterus and Nysius destructor [ =angustatus ] and 
Piesma cinerea as likely to be confounded with it; mentions other enemies 
of the chinch-bug; means against it; importance of irrigation. 
2049. Riley, O. Y. On the oviposition of Prodoxus decijpiens. <Amer. 
Nat., January, 1882 [30 December, 1881], v. 16, pp. 62-63. Re¬ 
print: <Proc. Amer. Assoc. Adv. Sci. for 1881 r 13 October], 
