20 PEOCEEDINGS OF THE NATIONAL MUSEUM vol.74 



lower margin of mesopleurum, postscutellum, upper division of meta- 

 pleurum and all coxae. 



The only characters in which all agree and in which they differ 

 from the typical variety are the interrupted apical bands of tergites 

 2 and 3 and the mediajily immaculate face. 



In the male the orbits are more broadly white from frons around 

 to cheeks, the face is medially white, clypeus and mandibles partly 

 white, scape white below, flagellum entirely black; tegulae, humeral 

 margin of pronotum, subalar tubercle, postscutellum, front and 

 middle coxae and trochanters beneath white ; front and middle coxae 

 and trochanters above, hind coxa and basal joint of trochanter en- 

 tirely, apex of femur, basal and apical joints of tarsus black; second 

 joint of hind tarsus dusky; apical bands of tergites 2 and 3 not in- 

 terrupted ; seventh tergite apically white. 



The type is from Cap Rouge, Quebec; the most nearly typical fe- 

 male of the National collection and the male from Edmonton, Al- 

 berta, April 5, 1924, George Salt ; and the two other females from 

 Canada (C. F. Baker collection) ; and Lyme, Conn., June 15, 1918, 

 W. Middleton. 



LISTROGNATHUS MULTICOLOR, new species 



Female. — ^Length 8 mm. 



Temples strongly sloping, straight, distinctly, though not densely, 

 punctate; frons medially rugose above, polished below, horn large; 

 face finely alutaceous, coarsely punctate; clypeus moderately ele- 

 vated; malar space subequal to basal width of mandible; occipital 

 carina not prominent below; antennae nearly as long as body. 

 Thorax densely and coarsely punctate, pronotum laterally, mesopleu- 

 rum and metapleurum partly, rugoso-striate ; propodeum with apical 

 carina obsolete medially, apophyses low carinate, obliquely striate 

 rugose between the carinae, posterior face reticulate rugose ; nervulus 

 distinctly antef ureal ; nervellus perpendicular to cubitella. Abdomen 

 densely, rather coarsely punctate on tergites 2-3, postpetiole sparsely 

 punctate; sheath hardly half as long as abdomen; ovipositor as in 

 alhomaculatus. 



Head and thorax black with the following white markings; an- 

 terior orbits, very narrow on face ; a spot on cheek ; middle of clypeus ; 

 spot on mandible; upper side of ninth flagellar joint; small spots on 

 humeral margin of pronotum, tegula, subalar tubercle, and scutellum ; 

 and a spot on each side of posterior face of propodeum, including 

 apophyses ; wings yellowish hyaline ; legs testaceous ; front and mid- 

 dle coxae more or less whitish above ; hind tibia dusky red, blackish 

 at Base and apex, with an indefinite yellowish subbasal annulus; 

 tarsus dusky, basal and apical joints nearly black, joints 1-4 pale at 



