306 THE CANADIAN ENTOMOLOGIST. 



free part of SCj almost atrophied, a mere trace of a stump on one side, 

 its own length or slightly more proximad of the medio-cubital cross-vein ; 

 stigma short and rather broad ; cell R5 a little longer than cell R^ ; claws 

 small, the outer ray the longest ; colour black, except the legs beyond the 

 knees, varying from semiresinous to brown ; wings with the basal half 

 clouded. 



Length, 6 mm. 



Habitat. — Maine. 



Priophorus acericaulis, n. sp.^ 9 • Short, rather robust ; clypeus 

 broad, without setae, broadly and shallowly emarginate, with the lateral 

 angles rounded ; tentorial invagination deep, abrupt on the clypeal side, 

 extending as a deep groove along the lateral margin of the antennae to the 

 lateral ocelli, where it joins a deep, transverse, curving groove, extending 

 along the caudal margin of the ocelli, from the middle of this transverse 

 groove there is a cephalic projecting groove surrounding the anterior 

 ocellus ; the antennal fovea shallow, broad and indefinite ; ocellar basin 

 and crest entirely wanting ; antennae short, slightly enlarged at middle, the 

 first and second segments subequal in length, the second twice as long as 

 broad, the third segment at least one-third longer than the fourth ; the free 

 part of Sci distinctly proximad of the medio-cubital cross-vein ; stigma 

 pointed at apex, with the caudal margin almost straight ; the cell R^ longer 

 than the cell R5 ; claws large and slender, cleft, the outer ray longest ; 

 cerci minute ; saw-guides pointed at apex, sides equally, convexly con- 

 vergent, dagger-shaped ; colour resinous, with the following parts black : 

 the antennje beyond the second segment, the head, except the clypeus, 

 the labrum, the mandibles, the mesonotum, the metanotum, and a spot 

 beneath the wings ; wings hyaline. 



Length, 4 mm. 



Habitat. — New Haven, Connecticut. 



Described from numerous females received from Dr. W. E. Britton. 



Priophorus cequalis, Nort. — ^ . Moderately robust ; clypeus trans- 

 verse, somewhat elongate, deeply emarginate, pitted; tentorial invagination 

 prominent, extending into a large prominent depression surrounding and 

 extending above the antennae, continued as a prominent groove to the 

 ocelli, with a distinct transverse groove extending along the caudal margin 

 of the ocelli, and projecting cephalad surrounding the anterior ocellus ; 

 antennal fovea deeply concave ; antennal area long, narrow, pointed at 

 apex ; frontal crest indistinct, broken by the antennal fovea ; the sides of 



