192 ROYAL SOCIETY OF CANADA 



I'l.ATYGASTEK HeKKICKII. 



I'lati/gaxter ILrrickli, Packard, Third K('i,(jrt V. S. Eut. Connu., p. --0. 

 PlnliirjiiKtir Ilerrickii (Pack.), Af^lnuead, Monog. N. A. Proc, p. 3l'4. 

 Antitrlii/iirlntx (iin'nruK, Piuvancher, Add. et Corr., p. 170. 



Type <? of Provancher's species in Coll. Ashmead, from Ottawa. 

 One 9 and tlneo (? i ixho from Ottawa. 



PLATYdASTEU ACICUL.\TUS ? 



Platt/gastcr (tciciihitiis, Aslimead, Monog. N. A. Proc, 32(5. 



Six 9 9 and two S $ bred from galls of Euura and Cecidomyia on 

 willows. The specimens do not quite answer to description, but have 

 the pleura^ strongly aciculated, and in some other points agree fairly well. 



ISOCYBCS PALI-II'luS. 



I'hlygdntt'r palliaes, Say, Cont. ^laclurian Lyceum, i, p. 80 ; Lee. Ed. Say, i, 



p. 383. 

 Isoqfbm jialliite.i (^ay), Ashmead, ^lonog. X. A. Proc., p. 328, pi. xiii, fig. 4. 



One Ç fi-om Ottawa agrees very well with description ; it is more 

 densely punctured and opaque than the following species. 



ISOCYBUS CANADENSIS. 



Platygaster canadetms, Provancher, Add. et Corr., p. 181. 

 laosUtsius canadensis, Provancher, ibid., p. 403. 

 Monocrita canadensis, Ashmead, Can. Ent., xix, p. 12(). 

 Isocybus canadensis (Prov.), Ashmead, Monog. X. A. Proc, p. 320. 



Described from Ottawa specimens, and types of both sexes are in 

 Coll. Ashmead. Twelve 9 9 and twenty-eight ^ S' from Ottawa district. 

 It occui-s in May, and on the 13th of that month it was very abundant, 

 one year, about some alders near Hull. I obtainei it also at Cas.selman 

 on 24th May. Dr. Fletcher took two females at Brandon, Man., in July, 

 1895. 



Individuals var}' greatly in the sculpture of mesonotum and pleura^ 

 and somewhat in colour of legs and antenna^ and in the structure of 

 latter ; all, however, seem referable to one species. 



.Subfaiuily VII.— nELORIK/E. 



IlEI.OKrs I'AHADOXrS. 



(hjirhts /laradoxtis, Provancher, Nat. Can., p. 207 ; Panne Ent. Can., ii, ii. ■>4(). 



I Irlorus paradoxus, Provaiiclier, Add. et Corr., p. 40Ô. 



I II lams paradoxus (Prov.), Aslnnead, Monog. N. A. Proc, p. 331. 



The two 9 types of species were taken at Cap liougo, Que. Two 

 9 9 , Ottawa, of which one was taken at Kettle Island, 18th August, 1894. 



