THE CANADIAN ENTOxMOLOGIST. 295 



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together ; the pentagonal area wanting ; the scutelkim finely striate at 

 apex ; the saw-guides broad, straigln above, strongly convexly rounded 

 from below to the apex above. Length, 5 mm. 

 Habitat : Ithaca, N. Y. 



Monophadnoides costalis^ n. sp. — Body black, with the angles of the 

 pronotum, the tegulce, and the legs below the knees, white ; the front 

 without a V-shaped furrow behind the median ocellus ; the pentagonal 

 area wanting ; the scutellum striate at apex ; front with a pit-like puncture 

 on each side ; the saw-guides straight above and below, oblique at apex, 

 drawn out into a long point above. Length, 6 mm. 



Habitat : Wellesley, Mass. (A. P. Morse). 



Mo?iophadiioides coj'aci?ius, n. sp. — Body black, with the angles of the 

 pronotum narrowly, the tegul?e, and the legs below the knees, white ; the 

 antennae with the third segment shorter than the fourth and fifth together; 

 the pentagonal area and the V-shaped furrow behind the median ocellus 

 wanting; the front not with a pit-like puncture on each side; the scutellum 

 smooth, at most extremely, finely, rugosely roughened. Length, 6 mm. 



Habitat : Wellesley, Mass. (A. P. Morse). 



Monophad7ioides collaris, n. sp. — Body black, with the angles of the 

 pronotum broadly, the tegulas, the apices of the coxce, the trochanters 

 more or less, and the legs below the knees, white ; the antennce with the 

 third segment shorter than the fourth and fifth together ; the pentagonal 

 area indistinctly impressed ; the V-shaped furrow .behind the median 

 ocellus distinct ; the scutellum distinctly punctured at sides ; the saw- 

 guides broad, convex above and below, broadly, obliquely rounded to a 

 blunt point at apex above. Length, 6 mm. 



Habitat : Ithaca, N. Y. 



Aphafiisus, n. gen. — Malar space narrow and indistinct, hardly more 

 than a line beneath the eyes ; the antennae with the third segment always 

 longer than the fourth; mesothoracic epimeron not with a transverse suture 

 below the episternum ; front wings with the radial cross-vein and the free 

 part of R4 inclined at different angles ; the hind wings with the transverse 

 part of M2 present ; the claws cleft at apex. Type Aphanisus lobatiis^ 

 MacG. 



Aphaiiisus lobatus, n. sp. — Body black, with the pronotum, the 

 tegulre, the legs, and a fine margin on the apex of the abdominal seg- 

 ments, white or luteous ; front with a distinct pentagonal area, its lateral 

 walls sharp and distinct ; the front smooth and polished and without a 



