200 ROYAL SOCIETY OF CANADA 



Melcalfe, laboUed Toronto, 3r(i ALirch, 1894, apparenlly belongs lo llii.s 

 species, but is not in very good condition for determination. 



Acl.ISTA HlCiOSOl'minl.ATA. 



AcIIkIk niijosiijxtiiiliilii, Asliim-ad, Mmiog. X. A. Proc, p. 877. 



Two 9 9 from Hull, 22nd August, 18:»7. The fovea at base of 

 Bcutellum is crescent-shaped, instead of consisting of two fovea' connected 

 by a grooved line. 



Atl.I.sTA CRASSICOKNIS, .•*;>. IHtr. 



S- — Length 3 mm. Black, polished; abdnm-n nifo-piceou.^. IK-ad more 

 tnui.svei-i^e and more narrowed behind the eyes than in the preceding furms. 

 Antenna- rdfous, very stout ; scape as long as ])edicel and second j(jint ; pedicel 

 rounded, .scarcely longer than thick ; flagellar joints about twice as long as thick, 

 gradually shorter, the penultimate one-half longer than thick ; last joint more 

 slender, as long as the first. Wings subhyaline, nervures pale ; marginal vein 

 thickened, about four times as long as thick ; stigmal vein short, almost at right 

 angle, a fuscous streak indicating a long open marginal cell. Fovea at base of 

 scutellum lar<re, circular. Lejrs stout, honey-yell(»w, AV)domen rufo-piceous 



Described from one <? from Ottawa in my collection. 



This specimen was first considered to be S of A. rugosopetiolata, but 

 the shape of the head and the arrangement of ocelli is different, as well 

 as the shape of fovea at base of scutellum, and the wing venation ; it is 

 also more robust in fiicies. 



PSIL0.M.MA COLVMBIANUM. 



PsUomma cohiDibiamon, Ashmead, 3Ionog. X. A. Proc, p. o79, pi. xv, fig. 5, Ç. 

 Two 9 9 taken at Chelsea, 3rd October, 1897. 



A N EtTATA n I HTIKKO.NS. 



Ancctuta hirtlfroiix, Aslnnead, Can. Eiit., xix., p. 198. 



Anedatd hirflfwm, Ashmead, ]\Ionog. N. A. Proc, p. 382, pi. xv, fig. S, 9- 



Type 9 in Coll. Ashmead, from Ottawa. Two 9 9 taken 28th July 

 and 13th Au<rust, 1894. 



Subfamily X.— DIAPRIlNiR. 



Tribe I. — SfiLOMicRiNi. 



1 1 KM 1 1. EX IS Sl'BEM A K( i I .\ ATA . 



Hemilexi» milinnan/iiniln, .Vsliuicad, Monog. N. A. Proc, p. 380, pi. xvi, fig. 4, 9t 

 One 9 from Ottawa agrees very well with the desci-iption of this 

 species, except in the absence of the abbreviated mesonotal furrows. 



PaHAMICSIUS CI.AVn'E.S. 



I'ftromemm claripen, Ashmead, Can. Ent., xx, p. 53 ; ^lonog. N. A. Proc, p. 303. 



Type 9 in Coll. Ashmead, from Ottawa. Seven 9 9 and six i^ 



fiom Hull, Kettle Island and Ottawa, all taken in August, except one 9 



