BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
203 
1538. Riley, C. V.—Continued. 
injurious in Western Missouri in 1876 than Caloptenus spretus; prospect of 
freedom from injury by the former for the next two years; Vilfa vagince- 
flora introduced into the eastern prairies by the locusts ; limit to the east¬ 
ern range of the locusts; they are not led by kings or queens; occurrence 
of larvse of Deileplnla lineata after the disappearance of the locusts; locust 
flights in Illinois. 
1539. [Riley, C. V.] Canker-worms at the West. <N. Y. Tribune, 31 
October, 1876. S.-b. No. 17, p. 59. 
Occurrence of Paleacrita vernata in Michigan in 1872 and in Ohio in 1874, 
1875, and 1876; brief account of P. vernata and Anisopteryx pometaria ; 
their habits, ravages, and means against them. 
1540. Riley, C. V. [The venation of Anisopteryx and variation in 
imagos.] <Ca. Ent., September [October], 1876, v. 8, pp. 178- 
179. 
Variation in the venation of the wings of Anisopteryx pometaria and in the 
imagos ot so-called species. 
1541. Riley, C. V. A new enemy of the grasshopper. <Lawrence 
[Kans.] Journal. Reprint: industrialist [Manhattan,Kans.], 
2 November, 1876, v. 2, No. 30, p. 2. S.-b. No. 10, pp. 209-210. 
Letter of F. H. Snow with comments; eggs of Caloptenus spretus destroyed 
bylarvieof An thomyia, calopteni l=-angustifrons~\ ; characters of the larva;; 
eggs destroyed by larvie of some Ichneumon ? [— Systoechus oreas ] ; need of 
destroying eggs by artificial means. 
1542. Riley, C. V. Silk culture in Kansas. ^Nationalist, 10 Novem¬ 
ber, L876. S.-b. No. 14, p. 1. 
Importance of silk culture; practicability of the culture and prospects of its 
increase in the United States; measures for its promotion in Kansas; suc¬ 
cessful raising of silkworms on osage orange [ Maclura aurantiaca ]. 
1543. Riley, C. V. Bee killers: Asilus dies. <N. Y. Weekly Sun, 
15 November, 1876. S.-b. No. 10, p. 201. 
Habits of Asilidie, especially of Trupanea [= Promachus\ apirora and Asilus 
missouriensis [= Proctacanthus milberti\ ; description of T. [ = P.~\ apivora; 
larva of Asilus sericeus feeds on roots of Rheum rhaponticum. 
1544. Riley, O. Y. How to use Paris green for the cotton-worm. 
<Colman’s Rural World, 15 November, 1876. S.-b. No. 10, 
pp. 210-211. See: <N. Y. Tribune, 15 December, 1876. S.-b. 
No. 14, p. 7. 
Answer to letter of C. W. Niver; directions for the use of Paris green by the 
dry and wet method; description of sprinkling machines. 
1545. [Riley, C. V.] Notodonta concinna. <Colman’s Rural World, 
15 November, 1876. S.-b. No. 10, p. 219. 
Answer to letter of J. Barritt; description of larva of Notodonta [= (Edema- 
sia] concinna; habits, food-plants, and means against the same. 
1546. [Riley, C.V.] The dog-day harvest dy. <Colman’s Rural World, 
15 November, 1876. S.-b. No. 10, p. 220. 
Answer to inquiry of C. A. U.; description of Cicada pruinosa [=ti&icen]; 
method of souifaction; habits; notice of some manuals of entomology. 
