19 



pared with the females. In western Arizona and southern California, 

 H. medicaginis appears in the adult stage as early as March and is 

 most numerous during June and July on irrigated lucerne fields. 

 There may be from one to five generations in a single season. It 

 hibernates in the larval stage within the infested seeds, but the un- 

 developed larvae and individuals in the pupal stage are usually killed 

 by the first severe frost. In southern California occasional examples 

 hibernate in the pupal stage. The rate of parasitism by H. medicaginis 

 varies from 0'8 per cent, to 4*9 per cent, in various parts of California 

 and Arizona. 



McDuNNOUGH (J.). On the Types of Certain Noctuid Genera occurring 

 in North America (Lepid). — Entom. Neivs, Philadelphia, xxvii, 

 no. 9, November 1916, pp. 393-400. 



This paper draws attention to the fact that in the Catalogue of the 

 Lepidoptera Phalaenae of the British Museum, Sir George Hampson 

 has adopted as the t>^e of each genus, when not specified by the author, 

 Xhe. first species placed under the generic name, regardless of the work of 

 previous entomologists. Though personally incUned to favour this 

 principle, the author points out that it is not in accordance with the 

 views of the great majority of systematists and cannot be accepted 

 according to the current rules of nomenclature. Some changes in the 

 generic names of several North American species of economic importance 

 are therefore involved. These include : — 



Chloridea (Hmp.) = Heliothis, Ochs. 



Hadena (Hmp.) = Neuria, Gn. 



Parastichtis (Hmp.) = Septis, Hb. 



Athetis (Hmp.) = Caradrina, Ochs. 



Eriopus (Hmp.) = Callopistria, Hb. 



Hydroecia (Hmp.) = Gortyna, Ochs. 



Gortgna (Hmp.) = Helotropha, Led. 



Phragmatiphila, Hmp. = Nonagria, Ochs. 



Nonagria (Hmp.) = Senfa, Steph. 



Goyiospileia (Hmp.) = Euclidia, Ochs. 



Mods (Hmp.) = Pelamia, Gn. {Remigia, Gn.)* 



Van DyKE (E. C). New Species of Buprestidae (Col.) from the 

 Pacific States, with Notes concerning a few others. — Entom. Neivs, 

 Philadelphia, xxvii, no. 9, November 1916, pp. 405-412, 1 fig. 



Chrgsobothris pseudotsugae, sp. n., from California, on Douglas fir 

 {Pseudotsuga taxifolia) and white fir {Abies concolor), and Chrgsobothris 

 laricis, sp. n., on western larch {Larix occidentalis) and on lodge-pole 

 pine {Pinus contorta var. murrayana) in Oregon, are among the new 

 Buprestids described in this paper. 



* [As the system adopted by Sir George Hampson is in direct conflict 

 with the fundamental principles upon whicli zoological nomenclature is 

 based, the emendations in the generic names suggested in this jmper 

 will in future be adopted in this Iitvieu\ — Ed.] 



(C336) b2 



