BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 



203 



1538. RILEY, C. V. Continued. 



injurious in Western Missouri in 1876 than Caloptenua spretus ; prospect of 

 freedom from injury by the former for the next two years; Vilfa vagina- 

 flora introduced iuto 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 larvae of Deileplrila llneata after the disappearance of the locusts: locust 

 flights in Illinois. 



1539. [RiLEY, C. V.] Canker-worms at the West. <N. Y. Tribune, 31 



October, 1875. S.-b. No. 17, p. 59. 



Occurrence of Paleacrita rernata 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. Eut., September [October], 1876, v. 8, pp. 178- 

 179. 



Variation in the venation of the wings of Anisopteryx pometaria aud in the 

 imagos ot so-called species. 



1541. RILEY, C. V. A new enemy of the grasshopper. <Lawrenc'e 



[Kans.] Journal. Reprint: <Iudustrialist [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 

 by larvre of Anthomyia calopteni [==4tngu9tiffOBt] ; characters of the larvte ; 

 eggs destroyed by larvse of some Ichneumon f [Systa'chus areas'] ;, need of 

 destroying eggs by artificial means. 



1542. RILEY, C. V. Silk culture in Kansas. <Natioualist, 10 Novem- 



ber, 1876. 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 raisiug of silkworms on osage orange [Madura anrantiaca~\. 



1543. EILEY, C. V. Bee killers : Asilus flies. <N. Y. Weekly Sun, 



15 November, 1876. S.-b. No. 10, p. 201. 



Habits of Aiilidce, especially of Trupanea [= Promaclius] apirora and Asilus 

 missouriensis [ Proctacanthus milbcrti']; description of T. [=P.] apivora; 

 larva of Asilus sericeus feeds on roots of Rheum rhaponticum. 



1544. RILEY, C. V. How to use Paris green for the cotton- worm. 



<Colman's Rural World, ]5 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 [= CEdema- 

 io] concinna; habits, food-plants, and means against the same. 



1546. [RiLEY, C.V.] The dog-day harvest fly. <Colman's Rural World, 



15 November, 1876. S.-b. No. 10, p. 220. 



Answer to inquiry of C. A. U. ; description of Cicada pruinosa [= tibicen]; 

 methodjof sonifaction : habits; notice of some manuals of entomology. 



