74 C. R. CROTCH, M. A. 



with the suture (very narrowly) and three lines black, almost entire, a fourth 

 line is broadly interrupted in the middle and at the apex. % anterior tarsi 

 short, broad, 3d joint deeply bilobed, external claw thickened, internal re- 

 duced to half the ordinary size, so as to appear rudimentary. L. .5.5 mm. 



British Columbia, one male. Resembles R. paralleloijrammus of 

 EurDpe. 



Ilydroporut* (Cocliiinbiis) inascpilinus, n. sp.— Somewhat obovate, 

 pointed behind, pale fulvous, breast and abdomen black; head very finely 

 punctulate; thorax short, transverse, sides straight, base margined with black, 

 finely and rather closely punctulate; elytra thickly and finely punctulate, 

 pale yellowish, with the suture and four narrow lines black (the first and third 

 not quite reaching the base). % anterior claws much elongate, deformed, sub- 

 equal, the external one flattened. L. 4.75 mm. 



Lake Jjabache; very distinct by tlie male characters: the 3d 

 joint of tlie anterior tarsi is also feebly bilobjd and the claw joint is 

 large and hardly longer than broad. 



Il.y<liiol>iiis Mattliewisii, n. sp. — Eather elongate, parallel, convex, 

 testaceous; antennae rather short, stout, 7th joint nearly as long as 9th, club 

 pale head finely punctulate; thorax broader than long, narrowed towards the 

 front which is truncate, front angles rounded, sides rounded towards the base, 

 hind angles evident, obtuse, surface rather thickly punctulate, with a trans- 

 verse punctate basal impression terminating in a fovea on either side; scutel- 

 luia strongly punctate; elytra punctate-striate, sutural stria more deeply im- 

 pressed, intervals punctulate and confusedly rugulose; body beneath smooth, 

 femora deeply punctate. L. 4 — 6i mm. 



Flying at dusk near Gold Stream, Vancouver Island. The Messrs. 

 Matthews took three or four fine male specimens of this species, which 

 deepens in color to piceous-brown, and the punctuation varies in 

 intensity. 



AniNotoniH paliidioola, n. sp. — Regularly ovate, dark chestnut-brown, 

 antennre hmg, club hix, head scarcely' punctulate ; thorax convex, posterior 

 angles obtusely rounded, surface shining, clearly ajid rather closely punctate; 

 elytra also rather closely punctulate throughout, and feebly transversely rugu- 

 lose, a sutural row of punctures tolerably marked. L. 34 mm. 



Sweeping at dusk in the mirshes on El Cajon Ranch, near San 

 Diego. Allied to A. morulus, but distinct by the more strongly punc- 

 tate thorax and the irregularly punctate elytra. 



Prostomis amcricanus, n. sp.— Elongate, flat, testaceous-red, paral- 

 lel ; head and thorax rather obsoletely punctate, the latter longer than broad, 

 with a median line; elytra punctate-striate, intervals smooth. L 5J mm. 



Flying at dusk near Gold Stream, A'"ancouver Island, at the end of 

 July. It is extremely close to the European P. mandibular U^ from 

 which it only differs by the longer 3d joint and the more oval terminal . 



