204 THE CANADIAN ENTOMOLOGIST. 



these two, very slightly blackened between, and including lobes. 

 Mandibles yellow outwardly, rufous tipped. A narrow curved yellow 

 line just behind eyes. Sides of face yellow, same extending above base 

 of antennai on both sides and between. Overlapping base of mandibles 

 is a small fringe of whitish hair. Scape of antennae yellow-ringed at tip 

 and below, above black, but yellow predominating. First joint flagellum, 

 short, black, rounded, about one-third as long as second^ which, with four 

 following joints, is distinctly rufous below, and either rufous above or 

 inclined to black ; rest of antennae black, except the rufous tip. Thorax 

 black and covered with a sparse growth of whitish hair. Collar, some- 

 times spot below, tegulae, tubercles and curved spot just back of tubercles, 

 and a V-shaped mark below and a little back of this, transverse band on 

 scutellum and post-scutellum, and spot on posterior lateral angles of 

 metathorax, yellow. Mesothorax finely punctate, but not as closely so as 

 head. When viewed from the side appears slightly ridged. Scutellum 

 and post-scutellum rather more sparsely punctate. Metathorax with a 

 slight rounded cavity. Abdomen black and banded with yellow ; i-6 

 segments each with a band, interrupted and slightly sinuose on first, either 

 interrupted or narrowed on second and sixth, 3-5 narrowed in centre ; 

 terminal segment black, inclined to rufous at extreme tip ; with a short 

 growth of whitish hair, finely and closely punctate. First ventral either 

 with or without a yellow spot and three or four yellow bands (growing 

 smaller towards tip) on succeeding segments, the last band interrupted. 

 Hind margin of first three or four segments above inclined to rufous. 

 Legs yellow and black. Fore coxae yellow tipped and yellow 

 anteriorly, black posteriorly. Trochanters yellow tipped and yellow 

 inwardly, outwardly black. Femora, first four-fifths outwardly black, 

 rest yellow. Tibiae yellow, with small dark spot inwardly and feebly 

 spinose, slightly inclined to rufous at tip, as are all joints of tarsi except 

 first, which is yellow. Middle and hind legs marked about the same, 

 though either yellow or black may predominate on coxae and trochanters. 

 Wings inclined to dusky, nervures and stigma inclined to ferruginous. 

 Marginal cell a little longer than first submarginal, appendiculate at 

 apex. First submarginal about as long as the second and third com- 

 bined on the cubital nervure, the second receiving recurrent nervure near 

 centre, third receiving the nervure at end of first, fourth from second. 

 Stigma with a light-coloured spot before. 



Described from two male specimens belonging to Mr. Carl F. Baker 



