AKT. 26 WASPS OF SUBFAMILY PSENINAE MALLOCH 19 



Clypeus with a slight but quite evident central emargiuatiou of central 

 produced part; mosopleui-a entirely glossy, transverse striae on central 

 portion very faint, distinct only on anterior margin. 



canadensis, new species 



17. Pygidium broad, closely shagreened, and densely piliferous punctate. 



propinquus Kincaid 

 Pygidium narrow and glossy, piliferous punctate sparsely on sides 18 



18. Head finely transversely striato-punctate behind ocelli; mesopleura (eps 1) 



with fine transverse striae, which are faint only on central part of disk. 



mixtus Fox 



Head either with fine punctures or practically smooth ; mesopleura less 



distinctly sculptured, especially on center of disk 19 



19. Face not densely silvery haired, the hairs less closely appressed than usual ; 



enclosure or propodeum with ridges quite high ; postscutellum more 



densely punctured than scutellum niger Packard 



Face densely covered with appressed silvery hairs ; enclosure or propodeum 

 with ridges low ; postscutellum not more closely punctured than scutellum. 



leucopus Say 



PSEN (MIMUMESA) JOHNSONI (Viereck) 



Mimesa johnsoni Vie2{ECK, Trans. Amer. Ent. Soc. vol. 27, p. 340, 1901. 

 ? Psoi fuscrpes Packard, Proc. Ent. Soc. Philadelphia, vol. 6, p. 402, 1867. 



I have some doubt a? to the synonymy suggested above, but Mr. 

 Rohwer reports my specimens belong to johnsoni, and as there is 

 no specimen of Packard's species in Philadelphia which he could 

 study, the matter is left in doubt, though there is reason to believe 

 the two names apply to the same species. 



Fox placed fuscipes in the same group as kohlii but stated that 

 he did so j^rovisionally, noting that it differed from the four species 

 preceding it in the subtle punctation of the head and dorsulum. The 

 onlj^ specimen he had for examination was the broken type specimen 

 and he suggested that the examination of perfect specimens " may 

 show differences requiring the relegation of the species to another 

 grouj)." 



The species is the largest of the present segregate, 9-10 mm in 

 length, and the golden pubescence of the face in the female is quite 

 distinctive, no other known to me having the hairs of this color. The 

 pygidium is glossy, with large separated punctures, the petiole of tha 

 abdomen has the dorsocentral carina shallowly sulcate to beyond the 

 middle, and the mesonotum is rather variably punctured, sometimes 

 much coarser than one would expect from Fox's note, if the species 

 are synonyms. Antennal flagellum with elevation on one side of all 

 dark segments except eleventh in male. 



Originally described from both sexes, the type localities being 

 Riverton, N.J., and Lehigh Gap, Pa. Specimens before me are from 

 the following localities : Middlesex Countj^, N.J., specimen com- 

 pared with type female by Mr. Rohwer; Riverton, N.J., June 13, 

 1919 (G. M. Greene) ; Wetzels Swamp, Harrisburg, Pa., June 21, 



