166 REPORT OF NATIONAL MUSEUM, 1885. 



Charles V. Riley. Kerosene emulsions. 



Report of the Entomologist, Department of Agriculture, 1884 (1885), pp. 330-334 [46-50J. 

 Importance and efficacy of kerosene emulsions as insecticides ; formula for making an emul- 

 sion ; ill effects of the use of mixtures containing kerosene or crude petroleum not perfectly 

 emulsified ; ill effects of the use of strong mixtures oflye in California, as recommended there 

 hy tho State inspector of fruit pests. 



Charles V. Riley. Miscellaneous insects. 



Report of the Entomologist, Department of Agriculture, 1884 (1885), pp. 334-358 [50-74] ; plate 



5, figure 1 ; plate C, figures 2-3 ; plate 7, figures 2-3 ; plate 8, figures 1-4 ; plate 9, figures 1-4 ; 

 plate 10. 



Consists of suh-chapters with the titles given below.— Tho American cimbex, Cimbex amer- 

 icana, Leach, p. 334-336 [50-52], pi. 5, fig. 1.— Tho Streaked cottonwood leaf-beetle, Plagiodera 

 scripta, Fabr., p. 336-340 [52-56], pi. 8, fig. 1-2.— The Southern Buffalo-gnat, Simulium sp. p. 340- 

 345 [56-61], pi. 9, fig. 1-3.— The Angoumois grain-moth, Gelechia cerealella, Oliv, p. 345-350 [61- 

 CG], pi. 6, fig. 2-3. — The Cottony maple scale, Pulvinaria innumerabilis, Itathvon, p. 350-355 [66- 

 71], pi. 10, fig. 1-4.— The Cranberry fruit-worm, Acrobasis vaccinii n. sp. p. 355-357 ]71-73], pi. 9, 

 fig. 4. — The Larger wheat-straw isosorna, Isosoma grande, Kiley, p. 357-35S [73-74], pi. 7, fig. 

 2-3; pi. 8, fig. 3-4. 



Charles V. Riley. The American Cimbex, Cimbex americana, Leach. 



Report of the Entomologist, Department of Agriculture, 1884 (1885), pp. 334-336 [50-52], plato 5, 

 fig.l. 



Habits and ravages ef and means against imagos of Cimbex americana, injurious to willow 

 [Salix] ; descriptions of eggs and of the blisters in leaves in which eggs are deposited j figures 

 of egg, egg-blisters, newly-hatched and full-grown larva?, cocoons, pupae, female imago and 

 her ovipositor, and injured willow twig; mention of Galeruca decora as the most numerous 

 and most dangerous enemy of willow, and of Colapsis tristis as the next most abundant; gen- 

 oi al description of eggs and larva? of the Galeruca, with remarks on tho habits of both these 

 latter species. 



Charles Y. Riley. The Streaked cottonwood leaf-beetle, Plagiodera scripta, Fabr. 

 Report of the Entomologist, Department of Agriculture, 1884 (1885), pp. 336-340 [52-56] ; plate 



8, figures 1-2. 



Habits, ravages, food-plants, and seasons of and means against Plagiodera scripta; figures 

 and descriptions of eggs, of successive stages of larva?, and of several varieties of imago ; 

 figure of pupa ; remarks on the acquisition of new tastes for food by this species and by Trypeta 

 pomonelli; directions for the preparation and administration of London purple as an insecti- 

 cide. 



Charles V. Riley. The Southern Buffalo-gnat, Simulium sp. 



Report of the Entomologist, Department of Agriculture, 1884 (1885), pp. 340-345 1 56-61] ; plate 



9, figures 1-3. 



Ravages of the "Buffalo-gnat" in southwestern United States and of the "fly of Colum- 

 bacz" in Hungary; summary of the main facts known about these and related species of 

 Simulium and means against them, with references to the literature about Simulium. 



Charles V. Riley. The Angoumois Grain-moth, Gelechia cerealella, Oliv. 



Report of the Entomologist, Department of Agriculture, 1884 (1885), pp. 345-350 [61-66], plate 



6, figs. 2-3. 



Civil history and geographical distribution, habits, oviposition, seasons, ravages, and para- 

 sites of and means against Gelechia cerealella; general description of egg, larva, and imago, 

 and figures of these, of pupa, of details, and of injured grain and ear of corn ; detailed de- 

 scription of egg. 



Charles V. Riley. The Cottony Maple-scale, Pulvinaria innumerabilis, Rathvon. 



Report of the Entomologist, Department of Agriculture, 1884 (1885) , pp 350-355 [66-71] ; plate. 



10, figs. 1-4. 



Geographical distribution, civil history, synomy, life-history, seasons, food-plant, habits, en- 

 emies and parasites of and means against Pulvinaria innumerabilis ; influence of several 

 agoncies, especially birds and spiders, in the dissemination of coccidce ; figures of eggs, larva, 

 male and female ecale, and egg-masses. 



Charles V. Riley. The Cranberry Fruit-worm, Acrobasis vaccinii n. sp. 



Report of the Entomologist, Department of Agriculture, 1884, (1885), pp. 355-357 [71-73] ; plate 

 9, fig. 4. 



Civil history, oviposition, habits, food-plants [Vaccinium oxycocus], seasons and ravages of 

 and moans against Acrobasis vaccinii n. sp.; figures and detailed descriptions of eggs, larva, 

 pupa, and imago ; figure of cocoon ; comparison of A. vaccinii with related species; criticism 

 of A. It. Groto's views on the value of Phycis and on the synonymy of Acrobasis and of A. 

 juglandis. 



