302 THE CANADIAN ENTOMOLOGIST. 



reticulated. Tegulte shining deep black. Wings deeply infuscated except 

 at base, where they are subhyaline, nervures black, stigma dark brown. 



Legs stout, black, with apex of claw joint and claws fert^uginous, the 

 latter medially toothed, their pubescence longest on posterior femora and 

 tibiae, wholly grayish white except for the ferruginous tufts on the inner 

 tarsal apices. Anterior coxae with small short spines, tibial spurs dusky 

 testaceous, at mosf but very finely pectinate. Abdomen stout, subconical, 

 the first segment polished, its basal truncation impunctate, elsewhere with 

 rather fine but distinct and very well separated punctures, becoming very 

 fine and close on apical margins, following segments less polished but still 

 shiny, more finely and closely punctured, apex finely rugose. Apical 

 margins of segments i and 2 constricted and depressed, of 3 and 4 

 merely depressed. Segments 1-5 have narrow white fascice continued on 

 the ventral fringes, but otherwise the abdomen is almost bare, having but 

 short scattered hairs at base and down sides of first segment, the other 

 segments with minute scattered pale pubescence and some longer black 

 hairs on three apical segments. 



Types : Four ^ specimens, Anglesea, New Jersey, August 8th, 1901, 

 on "white umbellifer " (H. L. Viereck). Collection Acad. Nat. Sci., 

 Philadelphia. 



I take pleasure in dedicating this fine species to its discoverer, Mr. 

 Viereck, to whom I am indebted for many favours. In its bare appear- 

 ance it resembles C. midus, Rob., but is easily separated by lacking the 

 postscutellar pits. Its size, dark thoracic hairs, dark wings and peculiar 

 abdominal punctation easily separate it from any other North American 

 species. 



Colhtes ititermixtus, n. sp. — $ . Length, 9)^ mm. Black. Clypeus 

 flat, shiny, medially slightly but broadly sulcate, apex transverse, its punc- 

 tures coarse but widely separated, and not forming distinct striae, laterally 

 with sparse pale pubescence. Supraclypeal area shining and impunctate, 

 except for a very few marginal punctures. Face closely punctured, 

 clothed with short gray pubescence. Sides of vertex shining, minutely 

 sparsely punctured. Antennae black, the flagellum brownish fuscous 

 beneath beyond second joint, which is just a shade shorter than first, all 

 the median joints shorter than wide. Labrum convex, shining, medially 

 with a long linear depression. Malar space very short, linear, finely 

 striate. Mandibles', dark, tips rounded, tooth prominent and near tip. 



