200 
BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
1510. Riley, 0. Y. Sweet-potato beetles; “beautiful bugs.” <N. Y. 
Weekly Tribune, 26 July, 1876, 3 figs. S.-b. No. 10, p. 213. 
Answer to letter of W. Snowden; characters and habits of Cassididce", descrip¬ 
tion and figures of larvae and imagos of Coptocycla [ = Cassida] bivittata and 
C. [—C.] nigripes ; descriptions of C. auriclialceq and C. guttata] these 
species feed on leaves of Ipomcea batatas and C. auriclialcea, also on leaves 
of Convolvulus and of Solarium dulcamara ; means against them. 
1511. [Riley, C. V.] Those centennial insects. <N. Y. Weekly Trib¬ 
une, 26 July, 1876. S.-b. No. 10, p. 219. 
Criticism of communication of L. A. M. ; list of principal insects preying 
upon stored corn. 
1512. R[iley], C. Y. Wheat midge; u rue- worms.” <N. Y. Tribune, 2 
August, 1876. S.-b. No. 10, p. 202. 
Larvae of Papilio asterias feeding on Euta graveolens ; description, habits, sea¬ 
sons, ravages of, and means against Cecidomgia [— Diplosis] tritici. 
1513. Riley, C. Y. Apple and peach borers. <Colman’s Rural World, 
9 August, 1876. S.-b. No. 14, pp. 3-4; 55-56. Extract: <Cul- 
tivator and Country Gentleman, 7 September, 1876, v. 41, p. 566. 
Answer to inquiries of F. H.; Chrysobothris femorata distinguished from Sa~ 
perda bivittata [—Candida'] and PEgeria [= Sannina] exitiosa ; habits and 
description of the first; habits of the last and means against both. 
1514. Riley, C. Y. Targe saw-fly. <Colman’s Rural World, 9 Au¬ 
gust, 1876. S.-b. No. 14, p. 4. 
Answer to inquiry of J. B. J. ; description of larva and imago of Cirnbex 
laportei [= americana] ; its food-plants and transformations. 
1515. Riley, C. Y. Cottouy scale-iusect on maples. <Colman’s Rural 
World, 9 August, 1876. S.-b. No. 14, pp. 4-5. 
Answer to inquiry of C. F. Mills; Lecanium acericola [= Pulvinaria innu- 
merabilis] injurious to Acer dasycarpum at Springfield, Ill. ; habits, descrip¬ 
tion of the scale, and manner of oviposition ; no great injury ever done by 
insects of this genus. 
1516. RiLEi r , C. Y. Hickory vs. locust borer. <Colman’s Rural World, 
9 August, 1876. S.-b. No. 14, p. 5. 
Answer to inquiry of F. M. D. ; description of larva and imago and natural 
history of Arhopalus [= Cyllene ] picius ; characters distinguishing this from 
A. [= C.] robinice ; food-plants and seasons of the latter. 
1517. Riley, C. Y. Stag-beetle. <Colman\s Rural World, 9 August, 
1876. S.-b. No. 14, p. 5. 
Answer to inquiry of S. Lee; occurrence and characters of Lucanus elaphus : 
food of larva. 
1518. Riley, C. Y. Eggs of the angular-winged katydid. <Colman , s 
Rural World, 9 August, 1876. S.-b. No. 14, p. 5. 
Answer to inquiry of Y. Kriegel; descriptions of eggs, imagos, and song of 
Microcentrum retinerve ; habits and ravages and means against the same. 
1519. Riley, C. Y. Experience with the Colorado potato-beetle. <Col- 
man’s Rural World, 9 August, 1876. S.-b. No. 14, p. 6. 
Letter from N. Coleman; larvae of Dorypliora decemlineata in confinement 
pupated on the surface of the ground ; imagos eat the tubers underground. 
