320 THE CANADIAN ENTOMOLOGIST. 



2. Pubescence ochreous, mandibles with a yellow spot at 



base mennacha. 



Pubescence white, mandibles black wenuacha Veinonensis. 



Synhaloiiia lata, Prov. — Faune Ent. Can. Add. to Vol. II, p. 302, 

 1889, ?. 



Vancouver (Tayloi) — This may be the $ oi Synhalonia Edwardsii. 

 Prof. Cockeiell is of the opinion that it is Syuhalo)iia Edwardsii, v. latior. 



Melissodes desponsa, Sm. race ? 



M. desponsa, Sm. — Brit. Mus. Cat. Hym., II, p. 310, 1854. 



9, Corvallis, Oregon, iith March (Cordley). A form that may 

 prove to be a new species. 



Melissodes mennacha., Cress. — Trans. Am. Ent. Soc, I, p. 338, 

 1867-68, S- 



Oregon (A. E. .S. Coll.). 



Melissodes mennacha Veinonensis, n. subsp. 



Type Acad. Nat. Sciences, Phila. 



Type locality, Vernon, British Columbia. 



Vernon, B. C, 9 V > -^ i ■, 11, 9th, 15th, lyiii Aug., 1904 

 (Harvey). 



Synhalonia nigricornis, Prov. — Faune Ent. Can. Add. to Vol. II, p. 

 302, 1889, $. 



Vancouver (Taylor). 



Melissodes desponsiformis, Ckll., n. sp. — "J. Length about 14^ 

 mm.; black, with black and yellowish-white pubescence ; hair of legs 

 black, yellowish-white on outer side of hind tibiae and base of their tarsi. 

 Very closely allied to /]/. mysops, Ckll., from Maybell, Colorado, but 

 differing as follows : Hair of face, cheeks and vertex sooty, palest on 

 vertex; last joint of flagelluni longer, being much longer than the penulti- 

 mate ; disc ofscutellum duller and much more closely punctured ; less of 

 the anterior part of mesothorax covered by pubescence. From M. cnici, 

 Rob., it differs by the abdomen having distinct but thin hair-bands, and 

 also being narrower, with the hair on fifth segment a dark purplish-brown 

 instead of pure black ; also by the more sparsely and less strongly punc- 

 tured disc of mesothorax. 



''Halt. — Corvallis, Oregon, '11-3' {Cordley). The following table 

 separates four closely-allied species ( ? ) : 



