THE CANADIAN ENTOMOLOGIST. 303 



H. frizonatus, Cress. — 2 9 's, Corvallis, Ore., June 6. The record 

 oi coriaceus, Sm., from Olyinpia, Wash., by Prof. Cockerell, I ihink is this 

 species, as I have never seen the true coriaceus further west than Michigan. 

 H. egre^ius^ Vach., would run to this species in the table, and from his 

 description I am unable to scj^arate it, except that he says hind inner 

 spur wiiii six icctli or spines, wliich is not iruc of trizonatui, il having 

 eight or nine ^aw-Jikc Iccili. 



// l^rovdHiJicri, D. T. Svnoiivm : // Jicarcticus, X'acli. RecordiHl 

 from H. C. by Vachal. All the specimens from Corvallis, Ore., are much 

 smaller and may be distinct, but the $ is needed to verify this. 



H. Cressonii, Robt. — Corvallis, Ore., May and June, 2 9 's. 



H. a/bipennis, Robt. — Corvallis, Ore., May 27, i 9- 



H. zephyrtis, Sm.— Corvallis, Ore., June i r, Oct. 14, 2 $ 's. 



H. atriventris^ n. sp. — $ . Head and thorax dark blue, finely 

 lineolate, slightly shiny, the whole insect covered with sparse, slightly 

 ochraceous pubescence ; head above antennae closely, finely punctured ; 

 facial quadrangle about square ; mesothorax finely, sparsely punctured, 

 median groove plain, parapsidal grooves subobsolete ; base of metathorax 

 finely, irregular rugulose and finely lineolated, the rugae reaching the apex ; 

 wings dusky, nervures and stigma dark testaceous ; second submarginal 

 about half as long as third, third narrowed only slightly to marginal ; 

 tegulae piceous, with a dark reddish centre ; legs dark, pubescence slightly 

 ochraceous, hind inner spur with about four long teeth ; abdomen black 

 with greenish reflections, almost entirely nude, shiny, almost impunctate, 

 the apical margins of the segments dark testaceous. 



Length about 6 mm. 



Coldstream, B. C., July 27, 1902. 



c^ . Similar to the 9 ; has no light or face or legs, more greenish in 

 colour than the 9 , but the metathorax blue and coarsely rtigose ; nervures 

 darker, apical margins of the abdominal segments not light. 



Length about 6 mm. 



Mission, B. C, August 8, 1904. 



Aj)parently close to scmiccerideus, Ckll., which, however, has hyaline 

 wings, large punctures on the mesothorax, light tegul?e, etc. 



In addition to the species listed above, the collection contains a large 

 series of a male from Corvallis, but since the males of most of the western 

 species are yet undescribed, it was thought that this might represent a 



