280 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 



2001. EILEY, C. V. Additional notes on the army worm, Leucania uni- 



puncta. <Proc. Amer. Assoc. Adv. Sci. for 1880 [14 October], 

 1881, v. 29, pp. 640-642. Separate : <Salem, Mass., July, 1881, 

 pp. 24-26. Abstract : <Boston Daily Advertiser, 2 September, 

 1880, v. 136, p. 4. 



Number of annual generations of Leucania unipuncta: stages at which hiber- 

 nation takes place; occasional immigration of moths into nninfested dis- 

 tricts ; preferred breeding-places; connection of wet and dry seasons with 

 the abundance of these insects. 



2002. RILEY, C. V. The hitherto unknown life-habits of two genera of 



bee-flies, Bombyliidce. <Proc. Amer. Assoc. Adv. Sci. for 1880 

 [14 October], 1881, v. 29, p. 649. Separate : <Salem, Mass., 

 July, 1881, p. 33. 



Food-animals and food -habits t>f Systoechus areas and Triodites mus ; parallel- 

 ism in the life-history of Bombyliidce and Meloidce; connection of the abun- 

 dance of insects of these families in the western United States with the 

 prevalence of Acrididw there ; retardation of development in the early stages 

 of these parasites explained as a beneficial characteristic. 



2003. RILEY, C. V. A remarkable case of retarded development. <Sci. 



Amer., 20 August, 1881 [v. 59], n. s., v. 45, p. 116. S.-b. No. 23, 

 p.. 



Report of a case in which eggs of Caloptenus spretus remained undeveloped 

 for a period of four and one-half years after being laid ; remarks upon the 

 problems involved in the explanation of retarded development. 



2004. [RiLEY, C. V.] Blepharoceridce. <Amer. Nat., September [23 Au- 



gust], 1881, v. 15, p. 748. 



Discovery by J. Q. Adams of pupae and imagos of Blepliaroceridce at Water- 

 town, N. Y. 



2005. [RiLEY, C. Y.] Remarkable case of retarded development. 



<Amer. Nat., September [23 August], 1881, v. 15, pp. 748-749. 



Eggs of Caloptenus spretus,. buried about 25 cm. (10 inches) under ground, re- 

 mained unhatched and alive for four and one-half years, and hatched upon 

 being exhumed. 



2006. [RiLEY, C. Y.] Promotion of silk-culture in California. <Amer. 



Nat., September [23 August], 1881, v. 15, p. 749. 



Answer to letter of Mrs. T. H. Hittell ; popularization of silk-culture in Cali- 

 fornia ; preparation of the fiber for the market. 



2007. [RiLEY, C. Y.] Locust flights in Dakota. >Amer. Nat., Septem- 



ber [23 August], 1881, v. 15, pp. 749-750. 



Flights of Caloptenus spretus in Dakota on 7th and 16th July, 1881; large 

 numbers of Diplax rubicundula accompanying the locusts. 



2008. [RiLEY, C. Y.] The Hessian fly. <Amer. Nat., September [23 



August], 1881, v. 15, p. 750. 



Extensive damages done by Cecidomyia destructor in Illinois and Missouri ; its 

 abundance in the western prairie States in 1881. 



