192 JOURNAL OF THE WASHINGTON ACADEMY OF SCIENCES VOL. 11, NO. S 



ENTOMOLOGY. — On some Lepidoptera, with descriptions of new species, 

 larvae and pupae. Carl Heinrich. Proc. U. S. Nat. Mus. 57: o.':5-96, 

 pis. 1-13. 1920. 



This paper deals with new species occurring in the collection of the National 

 Museum, which have been reared by members of the Branch of Forest Insects 

 of the Bureau of Entomology. Some thirty-odd forms are treated; one new 

 genus, sixteen new species and two new varieties are described. Two pre- 

 viously described species are reduced to the rank of varieties, and full larval 

 descriptions are given of eight species, six of which represent genera hereto- 

 fore unknown in the larval stage. Descriptions of five pupae are also included. 



vS. A. Rohwer. 



ENTOMOLOGY. — Control of aphids injurious to orchard fruits, currant, 

 gooseberry and grape. A. L. Ouaintance and A. C. Baker. U. S. 

 Dept. Agric. Farmers' Bull. 1128: 3-4S. 1920. 



This paper, while intending primarily to aid fruit growers in the identifica- 

 tion and control of injurious aphids, contains considerable valuable informa- 

 tion for the student in biology. The life histories of the more important 

 species are graphically illustrated by colored plates, which show the alternate 

 hosts, methods of migration and various phases of the species. The paper 

 is well illustrated by photographs and line drawings. S. A. Rohwer. 



ENTOMOLOGY. — New species of Lepidoptera in the United States National 

 Museum. William Schaus. Proc. U. S. Nat. Mus. 57: 107-152. 1920. 



This paper contains descriptions of new butterflies and moths from Guate- 

 mala and Mexico, in the collection of the National Museum. The species 

 described from Guatemala were collected by the author and Mr. F. T. Barnes, 

 and those from Mexico were donated to the National Collection by Mr. Clark. 



S. A. Rohwer. 



ENTOMOLOGY. — Descriptions of twenty-five new species of North American 

 Hyrnenoptera. S. A. Rohwer. Proc. U. S. Nat. Mus. 57: 209-231. 

 1920. 



In this article new sawflies and parasites, most of which have been reared 

 by members of the Branch of Forest Insects, are described, and a key to the 

 North American species of Exenterus is included. S. A. Rohwer. 



ENTOMOLOGY. — Three new species of Indian Dryinid parasites of rice 

 leaf -hoppers. S. A. Rohwer. Proc. U. vS. Nat. Mus. 57: 159-1(5 1, pi. 22. 

 1920. 



In this paper three new Dr5dnid parasites reared from the rice leaf -hoppers 

 Nephotettix bipunctatus Fabricius, Sogata pussana Distant and Sogata pallescens 

 Distant, are described and figured. S. A. Rohwer. 



GEOLOGY. — Geology of the Yellow Pine cinnabar mining District, Idaho. 

 E. S. Larsen and D. C. Livingston. U. S. Geol. vSurvey Bull. 715-E. 

 Pp. 11 (73-83), figs. 2. 1920. 



The deposits are in a body of sedimentary rocks made up of quartzite, 

 limestone, and subordinate schist only a few square miles in extent and sur- 

 rounded by a great body of granodiorite. Tertiary andesite lavas overlie 



