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. — Note on the European corn barer (Pyrausta nubila- 

 lis Hiihner) audits nearest American allies, with description oj larvae, 

 pupae, and one new species. Carl Heinrich. Journ. Agric. Res. 

 i8: No. 3. Figs. 35, pis. 5. 1919. 



This paper was written to enable positive identity in larval, pupal, 

 and adult stages of the European corn borer, Pyrausta nuhilalis Hiibner 

 to be made. The genus Pyrausta is fully characterized. All the generic, 

 family, and larger group characters are given for the adult, larva, and 

 pupa. Full specific descriptions and tables are also given of the larvae, 

 pupae, and adults of Pyrausta nuhilalis and its two nearest American 

 allies, P. penitalis Grote and P. ainsliei Heinrich, the latter is here 

 erected as a new species for part of the material hitherto included under 

 the name penitalis Grote. The name penitalis is restricted to the 

 Nelumbo feeding species; nelumhialis Smith remaining a synonym of 

 penitalis. Male and female genital characters are used for the first 

 time in separating and defining these species. Five plates containing 

 thirty-five figures of the structural characters illustrate the article. 



C. H. 



ENTOMOLOGY.— 77z^ ants of the British Solomon Islands. Wil- 

 liam M. Mann. Bull. Mus. Gomp. Zool. No. 7. Pp. 273- 

 391. Figs. 59, pis. 2. 

 An account of the ants of the islands based on collections made by the 

 author in 191 6. The ant fauna of the Solomons had been almost entirely 

 neglected, less than a half dozen species being known from there, so a 

 number of forms among the 144 listed in the present paper are new to 

 science. A new Ponerine genus (Wheeleripone) is described and several 

 new subgenera proposed. Practically the entire list of species belong 

 to Indo-Malayan genera and, in the introduction, the Solomon Islands 

 are considered zoogeographically to be the eastern limits of the Papua- 

 sian region. 



A cm-ious new exudating habit in the workers of Rogeria stigmatica 

 Emery and nesting habits of several species of Polyrhachis are noted. 

 In one of the latter, P. osae Mann, two females combine and start a 



colony jointly. S. A. RoHWER. 



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