326 THE CANADIAN ENTOMOLOGIST. 



margin ; entire thorax punctured with large close punctures ] enclosure 

 with large punctures, middle furrow more or less distinctly indicated by a 

 row of punctures ; four anterior femora robust, swollen ; anterior 

 trochanters triangular in outline, long, as long as half their femora ; 

 abdomen above punctured as thorax ; venter not strongly punctured ; 

 seventh dorsal segment parallel sided, about twice as long as the width at 

 base, truncate at apex, each apical corner with a small tooth, punctured 

 with large punctures. Colour blick ; antennae, except basal joints above, 

 fulvous, dusky above ; face to level of antenna?, inner orbits to a little 

 above antennae, middle of clypeus, outer half of tegulse, postscutellum, 

 yellow ; bands on dorsal abdominal segments two to seven (one on sixth 

 very small), yellowish-white ; legs below knees (posterior tibiae at apex 

 brownish) yellow or reddish-yellow ; posterior trochanters and base of 

 femora rufous ; posterior femora dark brown ; wings dark, darker along 

 anterior margin ; venation black. 



Habitat. — Denver, Colo., July 20, 1907, on Cleome, 1 109 (Dunning). 



The coarsely-punctured enclosure separates this species from most 

 American ones. From its allies the dark wings, small size and shape of 

 the clypeus will serve to separate it. The general appearance is much 

 like that of C. finitima, Cresson. 



The types of the species described above are in the author's collec- 

 tion. The following species of Eucerceris has been described by Mr. 

 Cockerell, after we had studied and discussed it together : 



Eucerceris pimaniin, n. sp., Cockerell «S: Rohwer. — ? . Length, 

 about or nearly 10 mm.; red, blackish and pale yellow. Head broad and 

 thick, bright ferruginous, darker on face ; mandibles thick, black at apex ; 

 face flattened, closely and finely punctured ; clypeus very short, but very 

 broad, divided into three lobes, the middle one with a pair of rather 

 widely separated black teeth or tubercles on the lower margin, and between 

 them a small bituberculate prominence, and all three fringed with rather 

 short pale hairs ; front with a very prominent obtuse ridge between the 

 antennae, broadening and inclining to divide above, so as to form a sort 

 of V ; front, vertex and cheeks with strong, close punctures ; vertex 

 broad ; interocellar area black ; cheeks exceedingly broad, rounded 

 behind ; antennte ferruginous, the apical two-thirds of the fldgellum more 

 dusky ; third antennal joint little shorter than 4 -I- 5 ; mesoihorax very 

 shiny, with large, well-separated punctures, tending to run in rows ; 

 scutellum and postscutellum sparsely punctured ; mesopleura roughened ; 



