OF WASHINGTON. 285 



Lower Siam, collected by Dr. W. L. Abbott. The first of these 

 was Vespa doryloidcs Saussure, a curious species bearing a super 

 ficial resemblance to male ants of the genus Dorylus as well as 

 to species of the genera Eciton and Labidus. They repre 

 sent a distinct genus for which Mr. Ash me ad proposed the name 

 Provcspa. The other species was a single specimen belonging 

 to the genus Ischnogaster. This genus is found only in the 

 tropics, and is most numerously represented in India. The spe 

 cies of the genus have, until recently, been classified with the 

 social wasps Polistes and Vespa, but in reality belong in the 

 family Eumenidae. Although the Eumenidae belong with the 

 solitary wasps, yet some Indian species of Eumenes, as well as 

 certain species of 'Ischnogaster, are said to be social. 



Mr. Ashmead showed also a specimen of the large wasp, 

 Vcspa mandarina Smith, from Japan. It belongs in the genus 

 Vcspula Thomson. 



Dr. Dyar presented the following note for publication : 



NOTE ON CRAMBUS OFFECTALIS HULST AND ALLIED 



FORMS. 



(Evetria neomexicana^ n. sp.) 

 By HARRISON G. DYAR. 



Hulst described " Crawbus offectalis" in 1886, saying it 

 " Takes a place best in the exciccatus group." The species is, 

 however, really a Tortricid, and was rescued from its erroneous 

 position by Prof. Fernald, who placed it in Pcedisca (g with 

 costal fold) in Smith's list of 1891. Since then Prof. Fernald 

 has obviously received males, since in Bulletin 52, U. S. National 

 Museum, he removes it to Thiodia {Semasia}, which has no 

 costal fold in the male, and he makes bucephaloides Walsingham 

 a synonym of it. Prof. Fernald has kindly identified a specimen 

 of T. offectalis for me, and I have six others, all collected in Col 

 orado. This identification is, I believe, correct, for Hulst's 

 description applies to my specimens. The species has a structu 

 ral peculiarity in that vein 4 of hind wings is coincident with 3, 

 appearing absent. The same structure appears in oblitcrana 

 VVals., and, according to Walsinghem,* in elongana Wals. and 

 in the European pupillana Linn, and wimmerana Treit. I think 

 that these species ought to be separated generically from. Thiodia 

 on this character, but I am not prepared to say what generic name 

 should be used. Now, bucephaloides VVals. does not look to me 

 anything like offectalis Hulst ; besides which it has veins 3 and 4 



* 111. Lep. Het. Brit. Mus., iv, p. 56, 1879. 



