298 REPORT ON NATIONAL MUSEUM. 



Riley, Charles V. — Observations on tbe Fertilization of Yucca and on 

 structural and anatomical Peculiarities in Pronuba and Prodoxus. 



(Proc. Amer. Asso. Ad vane. Sci. for 1882, 18*3, xxxi, pp. 467-468. (Gar- 

 deners' Monthly, April, 1883, pp. 118-119.) 



Abstract of a paper read at tbe Montreal meeting of the American Associa- 

 tion for the Advancement of Science, August, 1882; description of the 



manner in which Pronuba yuccasella gathers the pollen in flowers of Yucca; 

 the work of this insect is necessary to the fertilization of the capsular species 

 of Yucca, the irregularity of whose fruit is due to its punctures; description 

 of the egg and of the manner of oviposition of this insect. 



Cluster-Flies. 



(Proc. U. S. National Museum, May 12, 1883, pp. 636-637.) 

 Paper read before the Biological Society of Washington, D. C. Covering 

 the same ground in detail as the abstract given in Amer. Naturalist, January, 

 1883. Appears, by error, as a part of a " note on cluster-flies" by W. H. Dall, 

 t he quotation marks being omitted. 



Elephantiasis, or Filaria disease. 



(Science, May 18, 1883, I, pp. 419-421, with fig.) 



Criticism of the views of Dr. A. F. A. King, set forth in [authors] " Mos- 

 quitos vs. Malaria" (Amer. Naturalist, May, 1883, xvii, p. 549), and notice of 

 Ihe writings of Dr. P. Manson and others on the connection of Culex mosquito 

 with the life-history of Filaria sanguinis-hominis, and on the production of 

 rlephautiasis aud related diseases by the Filaria. 



Number of Molts and Length of Larval Life as influenced by 



Food. 



(Amer. Naturalist, May, 1883, xvn, pp. 547-548.) 



Remarks on the variability in habits as in characters of insects; periods 

 and number of molts observed in larva? of Tenebrio molitor, T. obscurus, and 

 Trogoderma tarsale ; conclusion that insufficient nutrition retards development 

 and occasions frequent molting. 



The new Classification of the Coleoptera of North America. 



(Amer. Naturalist, June, 1883, xvn, pp. 660-661.) 



Notice of J. L. Le Conte and G. H. Horn's " Classification of the Coleoptera 



of North America. . . 1883." 



A pretty and unique gall-making - Tortricid. 



(Amer. Naturalist, June, 1883, xvn, p. 661, fig. 1.) 



Description aud figure of imago of GraphoUlha ninana n. sp., reared from 

 galls found on stems of Acacia filicina in Arizona. 



Synopsis of the N. A. Heliothince. 



(Amer. Naturalist, June, 1883. xvn, pp. 662-663.) 



Review of J. B. Smith's " Synopsis of the N. A. Heliothime" (Trans. Amer. 

 Kntom. Soc. for 1882, x, pp. 205-255, pi. vii, viii) ; nature of the generic char- 

 acters of Noctuidai ; neglect of these characters by A. R. Grote. 



Protection of Insect Collections. 



(Amer. Naturalist, June, 1883, xvn, pp. 663-664.) 



Statement of the power of Dermestid larva? to endure the effects of certain 

 iusecticides, and of the requisites more important than the use of insecticides 

 for the protection of collections from pests ; seasons in which collections are 

 most endauyered. 



