12 THE CANADIAN ENTOMOLOGIST. 



obsolete ; middle carina strong ; antennae reaching to about middle of 

 scutellum, third joint bifurcate, clothed with long black cilise on under 

 side ; clypeus truncate ; thorax smooth, shining, but not highly polished ; 

 scutellum broadly rounded at apex ; first transverse cubitus wanting ; 

 third cubital cell wider at the top than at the bottom ; stigma regularly 

 rounded on lower margin ; lanceolate cell of hind wings longly petiolate ; 

 claws simple ; posterior femora robust ; abdomen as usual. Colour black ; 

 mandibles and sides of pronotum piceous ; basal plates dull brown ; 

 abdomen, except the apical segment and first dorsal segment, ferruginous ; 

 four anterior legs below knees pallid ; wings dusky-hyaline, nervures and 

 stigma dark brown. 



Habitat. — Brady Island, on Platte River, Nebraska. Type in the 

 collection of the University of Nebraska. 



This species has its nearest ally in 6". brunniventris y Cress., but is 

 larger, the tegulae are black, venation is brown, abdomen ferruginous, etc. 



Dedicated to the author of the most extensive work on North 

 American Saw-flies. 



Schizocerus lineatus, n. sp. — <j> . Length, 6 mm.; length of anterior 

 wing, 5 mm. Rather robust. Head narrower than thorax, not strongly 

 narrowly transverse ; eyes prominent, shining, polished j frontal furrows 

 well defined, broadest where they curve around the ocellar basin ; ocellar 

 basin quite distinct, walls rounded, pointed at lower margin ; middle 

 carina high, sharp ; antennal foveae large ; antennae with some black down ; 

 clypeus slightly emarginate ; ocelli in a low triangle ; thorax shining ; 

 claws simple ; posterior femora rather robust ; posterior tibiae about a 

 third longer than their tarsi ; first transverse cubital present ; third cubital 

 cell wider at the top than the bottom ; second recurrent nervure inter- 

 stitial with second transverse cubitus (in one wing it is received in the 

 second cubital cell) ; abdomen shining ; sheath almost entirely concealed. 

 Colour black ; mandibles and ocelli piceous ; pronotum, tegulae, lateral 

 lobes of mesonotum, sometimes sides of anterior lobe, line on side of 

 abdomen reddish-yellow ; four anterior legs below the knees, base of 

 posterior tibiae yellowish-white ; wings hyaline, nervures brown, venation 

 rather weak. 



Habitat.— Geneva, Nebraska. Co-types in the collection of Univer- 

 sity of Nebraska and in the author's collection. 



A very distinct species, easily known by its size and the pale yellow- 

 red on the sides of the abdomen. The black of the abdomen varies to 

 pale brown. 



