304 Journal New York Entomological Society. [Voi. xxi. 



second antennal joint elongate, arista thickened on basal one fourth, 



strong costal spine, etc. (Parasitic on tineid larvae.). .Tachinophyto, 



3. Apical cell ending in exact wingtip, no bristles on third vein, wings elongate 



and narrow, facialia not ciliate half way up, first vein ends opposite 



small cross-vein. (Parasitic on Chrysomelidae.) Methypostena. 



Apical cell ending distinctly before wingtip, third vein bristly at base, wings 

 short, facialia ciliate nearly to base of third antennal joint, para- 

 facials narrow, cheeks about one sixth eye-height, scutellum with short 

 apical pair of bristles and three strong lateral pairs, second antennal 

 joint hardly elongate, arista thickened on basal one half, costal spine 

 weak, first vein ends well beyond small cross-vein, orbital bristles 

 present in both sexes. (Parasitic in lepidopterous and tenthredinid 

 larvae.) Pseudomyothyria. 



Lixophaga and Methypostena are parasitic in the larvae of the host, 

 normally issuing therefrom but exceptionally wintering over therein 

 and issuing from the adult beetle. Methypostena may also be para- 

 sitic on Coccinellidse. The European Erynnia has the same host 

 habit as Methypostena. 



Mr. Tothill's study and comparison of Senotainia with TrixocHsta 

 indicates the distinctness of latter genus from Amobia on the charac- 

 ter of the presence of a piercer in the female. TrixocHsta probably 

 deposits maggots. 



One more paper remains to be noted here — that by Mr. Harrison 

 E. Smith in Proc. E. S. Wash., Vol. XIV, pp. 118-127. His key of 

 North American species of Hyperecteina is useful, but the species are 

 not congeneric. The form demyliis Wlk. is evidently a compsilurine 

 fly, and hylotomce Coq. is probably a member of the same group ; 

 setigera is probably a genus novum; pergandci is Admontia, and so 

 probably is degeerioidcs; liniata is Neadinontia, and polita is perhaps 

 referable there; retinicc may be an Actia; whilenasoni.unispinosa and 

 tarsalis are doubtful. On pp. 164-165 of the same volume, the writer 

 referred to some of these points. 



Regarding Hyperecteina and Admontia, the type of the former 

 genus is metopina Sch. and that of the latter is aniica Meig., as stated 

 by Mr. Smith, but these two species are not as yet known to be con- 

 generic. Until such time as this supposition is proved, it is preferable 

 to retain the genera of which they are the types and thus avoid a 

 possible multiplication of nomenclatural changes. 



Mr. Smith's Phorocera einaris female from Tampico, Mexico, is 

 probably not conspecific with his New England specimens. 



