ABSTRACTS 



Authors of scientific papers are requested to see that abstracts, preferably- 

 prepared and signed by themselves, are forwarded promptly to the Editors. 

 The abstracts should conform in length and general style to those appearing in 

 this issue. 



ENTOMOLOGY. — Descriptions of seven new species of Opins (Hymen- 

 optera-Braconidae) . A. B. Gahan. Proc. Ent. Soc. Wash. 

 21: 161-170. 1919. 



This paper contains descriptions of seven new species of parasites 

 of Dipterous insects. Five of the new species are from the United 

 States and two are from Trinidad. S. A. RohwER. 



ENTOMOLOGY. — The ants of Borneo. William Morton Wheeler. 

 Bull. Mus. Comp. Zool. 63: 43-147. July, 1919. 



This paper is a systematic annotated catalogue of the ants of Borneo 

 and contains descriptions of new forms and phases with notes on geo- 

 graphical distribution and habits. The list records 256 forms repre- 

 senting 59 genera. Of these 256 forms, 58 are here recorded for the 

 first time and 23 of these are new to science. S. A. Rohwer. 



ENTOMOLOGY. — Two new species of Asaphidion from North America 

 (Coleoptera, Carabidae). H. F. Wickham. Proc. Ent. Soc. 

 Wash. 21: 178-181. 1919. 



In this paper two interesting new beetles belonging to a genus not 

 heretofore recorded from North America are described from material col- 

 lected in the interior districts of the Northwest (Alaska and Yukon 

 Territory). S. A. RohwER. 



ENTOMOLOGY. — Descriptions of new North American Ptinidae, with 

 notes on an introduced fapanese species. W. S. Fisher. Proc. 

 Ent. Soc. Wash. 21: 181-186. 1919. 



In this article four new species and one new genus of beetles are 

 described. All the new species are from Texas. Notes on a Japanese 

 species which was introduced with an exhibit are also published. This 

 introduced species has been taken in the field since the original discovery 

 of it, but there is no evidence that it has become a dangerous pest. 



S. A. Rohwer. 

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