14 THE CANADIAN BNTOMOliOG 



Habitat. — West Point. Nebraska, July i, 1 8 S 7 , "on plum." Type 

 in collection of the University of Nebraska. 



The following table separates all the entirely black or blue-black 

 Hylotoma of boreal North America : 



Length, 12 mm J , spiculata, MacG. 



Length, under 10 mm 1. 



1. Colour black ; legs beyond femora pale ; base of wings 



dark uigrescens, Rob. 



Colour blue-black 2. 



2. Four posterior legs entirely black ; wings vi< laceous, paler at 



apex casruUa, Nort. 



Four posterior legs not entirely black ; wings smoky-hyaline 3. 



3. Four anterior tibia? pale ; costa usually yellowish Uaclcayi. Leach. 



Four anterior tibiae black ; costa black nicntzclue, Ckll. 



Hylotoma grandis, n. sp. — ?. Length, 10-12 mm. Robust. Head 

 narrower than thorax, shining, outei orbits and vertex impunctate, front 

 with a few small punctures ; ocelli in a low triangle ; oce'lar basin shallow, 

 joining with the elongate middle fovea; middle fovea with well defined 

 walls, narrower below ; middle carina broad, strong ; frontal furrows ex- 

 tending as far down as ocelli; antenna! foveae elongate, broad, extending 

 downward to clypeus ; antennae subclavate, second joint shorter than first; 

 clypeus circularly emarginate, densely punctured ; mandibles broad ; 

 thorax shining ; posterior angles of pronouim sharp; scutellum convex, 

 rounded at apex ; middle and posterior tibia; with lateral spurs ; all the 

 tibial spurs simple, sharp ; tarsal claws simple; basal nervure joining sub- 

 costa basad to origin of cubitus ; stigma widest at base, tapering to apex ; 

 third cubital cell longer on radius than on cubitus ; hind wings normal ; 

 abdomen as usual. Colour cherry-red ; ocelli piceous ; antenna- black ; 

 head, pronotum in the middle, tegulae, entire mesonotum, mesopectus; 

 entire metathorax, all the legs, sheath, blue black j wings very dark, darkest 

 on anterior margin. 



£. — Length, 9 mm. Differs from $ in having the antenna? with 

 small hairs, the ocellar basin slightly separated from middle fovea, the 

 basal nervure joining the subcosta at origin of cubitus. 



Habitat. — Halsey, Nebr., June, 2 ^'s, 2 $ 's. Co-types in the col- 

 lection of the University of Nebraska and in the author's collection. 



This species is closest to H. huvieralis, Beauv., but the abdomen is 

 without black, second joint of the antenna; is shorter than the first, the 



