204 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 



1547. f RILEY, C. V.] Snake-worms. <Colmau's Rural World, 15 No- 



vein lier, JL87C. S.-b. No. p. 10, p. 220. 



Answer to letter of J. Armstrong ; description of larvae of Sciara sp. ; their 

 habit of moving in congregations ; their abode and enemies. 



1548. EILEY, C. Y. Locust eggs. <Colman's Rural World, 15 Novem- 



ber, 1876. S.-b. No. 10, p. 223. 



Answer to letter of C. T. ; female Acrididalay more than one litter of eggs; 

 the occurrence of egg-like parasites in males has led to the supposition that 

 the males bore eggs. 



1549. RILEY, C. V. Locust flights east of the Mississippi. <Colman's 



Rural World, 22 November, 1876. S.-b. No. 10, pp. 211-212 ; 

 221-222; 223-225. Reprint: <Sci. Arner., 16 December. 1876 

 [v. 49], n. s., v. 35, p. 392, 2 figs. S.-b. No. 10, pp. 216, 217. 

 <Trans. Kans. Acad. Sci., 1877, v. 5, pp. 62-64. 

 Limitation of plants and animals to certain geographical regions; regions in 

 which alone Caloptenus spretus survives; species confounded with C. spre- 

 * tus ; occurrence of swarms of Acridium americanum in Ohio; description, 



geographical distribution, and ravages of the same; swarrns of Caloptenus 

 differcntialis, C. atlanis, and C. femur-rubrum in Illinois; ravages of the same. 

 The reprint in the Sci. Amer. contains figures of Caloptenus spretus and 

 Acridium americanum. 



1550. RILEY, C. V. Locusts again. <N. Y. Tribune, 22 November, 



1876. S.-b. No. 10, p. 222. 

 Effects of winter on the vitality of the eggs of Acrididas. 



1551. RILEY, C. V. The army- worm; its natural history complete. 



<Sci. Amer., 9 December, 1876 [v. 49], n. s., v. 35, p. 372, 4 tigs. 

 S.-b. No. 10, pp. 217-219. Reprint, with slight changes: 

 <Proc. Amer. Assoc. Adv. Sci. for 1876, 1877, v. 25, pp. 279- 



283, 2 figs. 



Geographical distribution of Leucania unipuncta ; figure* of all stages and of 

 ovipositor of female; place and manner of oviposition; description of eggs 

 and young larvse; number of annual broods; summary of the natural his- 

 tory of this species. 



1552. RILEY, C. V. The apple-bark louse. <Ca. Farmer, 15 Decem- 



ber, 1876. S.-b. No. 14, p. 50. 



Seasons, habits, and ravages of Mytilaspis pomicorlids [ = pomorum ] ; descrip- 

 tion of young larvae ; of males and females and formation of scales. 



1553. RILEY, C. V. The apple maggot ; a formidable enemy. <N. Y. 



Semi- weekly Tribune, 15 December, 1876. S.-b. No. 14, pp. 7-8. 

 Answer to letter of P. M. Augur ; description of larva and imago of Trypeta 

 pomonella ; ravages, food-plants, habits, and means against the same ; lit- 

 erature of the subject. 



1554. RILEY, C. V. Entomological notes; confounding friend with foe. 



<Colman's Rural World, 20 December, 1876. S.-b. No.. 14, p. 4. 



Description of scales and eggs of Diaspis harrisii [= Chionaspis furfurua] and 

 of colors of larva, pupa, and imago of Chilocorus Hvulnerus; ravages of the 

 Diaspis ; habits and usefulness of the Chilocorus. 



