180 THE CANADIAN ENTOMOLOGIST. 



of hind wings longly petiolate at apex ; upper discal cell extending beyond 

 lower ; claws simple, first tarsal joint of intermediate legs nearly as long 

 as joints 3 + 4 + 5 ; sheath broad at base, pointed at apex above, rounded 

 below. Colour black ; clypeus, labrum, mandibles, except at apex, lower 

 orbits and tegulae, luteous ; palpi, spot on upper orbits, antennae beneath, 

 tibiae and tarsi reddish-brown (the density of this colour varies somewhat) ; 

 anterior femora sometimes the colour of the tibise. Wings hyaline ; 

 nervures and stigma pale brown, stigma lighter in middle. 



Habitat. — Dixon Canon, Larimer Co., Colo., May 9 (C. P. Gillette) ; 

 also specimens from Ft. Collins, Colo., May 11, 1899; 2 9 's, Foothills, 

 near Ft. Collins, Colo., May 15, 1897, flowers of Amelanchier ahiifolia 

 (C. P. Gillette) ; i $ , Dixon Canon, Colo., May 6, 1894 (C. F. Baker). 



This species is quite distinct. It seems nearest to H. obtusa, Klug., 

 from Georgia, from which it may easily be separated by the colour of the 

 basal plates, etc. 



Lycastafusca, n. sp. {^L.fusca, MacG., M.S ). S. Length, 6mm. 

 Head a little wider behind eyes ; vertex broad ; malar space distinct ; 

 clypeus broadly emarginate, lobes small, pointed ; labrum slightly emar- 

 ginate ; superclypeal space depressed into a furrow ; middle fovea distinct, 

 broadening above, where it is joined by two furrows, which come from 

 inner orbits and extend to vertex ; ocellar basin small, but well defined ; 

 antennse reaching about to apex of scutelliim, third joint distinctly longest, 

 last six subequal ; thorax, as is the head, with fine punctures ; punctures 

 on scutellum and postscutellum well defined ; tarsal claws simple ; trans- 

 verse radial received in apical third of cell ; lanceolate cell shortly 

 contracted, or with a very short broad cross nervure ; lanceolate cell of 

 hind wings petiolate at apex ; abdomen with irregular small punctures ; 

 seventh ventral segment broadly rounded at apex. Colour black ; face 

 below antennae, pleura and legs with sparse, short gray hair ; antennae 

 with very short, sparse gray hair ; in two specimens the anterior tibia? and 

 tarsi are pallid beneath, infuscated. Wings dark fuscous, shining in 

 certain lights with green and crimson ; nervures and stigma black. 



Habitat. — Ft. Collins, Colo., June 4, 1899; also June 4, 1901, and 

 Horsetooth Gulch, Larimer Co , Colo., April, 1895 (C. P. Gillette and C. 

 F. Baker). Collection of Colo. Agric. College. 



This species is quite distinct from all other members of the genus, 

 and may be easily known by being entirely black. 



