318 PROCEEDINGS OF THE ACADEMY OF 



B. Thorax postice angustatus, foveis basalibus latis ; (unguiculi subtilius 

 serrati.) 



8. Thorace margine latiusculo reflexo : a. lateribus postice subsinuatis, 

 C. a d v e n a Schaum ; /?. lateribus obliquis haud sinuatis, C. 1 e n i s Mann. 



9. Thorace temiiter marginato, angulis posticis rotundatis, postice haud 

 t.ransversini impresso. C. mollis Schaum. 



10. Thorace tenuiter marginato, postice magis angustato, angulis posticis 

 rotundatis, postice transversim impresso ; (major unguiculis vix obsolete ser- 

 ratis). C. dubia Lee. 



Ancho menus du lcis Mann., belongs to this division, and is most probably 

 a race of C. mollis, though this is merely a conjecture on my part, as I 

 have never seen a specimen of it. 



C. Thorax fere rotundatus, vel ovalis, foveis basalibus latis ; (unguiculi 

 t'ortiter serrati). 



11. a. Thorace latitudine subbreviore, postice perparum angustato, C. im- 

 punctata Lee. (Feronia imp. Say; Pristodactyla americana Dej.) 0. Tho- 

 race longiore postice vix angustato, margine paulo angustiore. P. corvina 

 Lee. 



Trechus spectabilis Mann, and T. oblongulus Mann., are by no 

 means Trechus, but belong to Bembidium, forming a group between VIII. and 

 IX. (Proc. Acad. 1857, 4), characterized by the thorax subcordate, with the 

 basal fovese somewhat double, the elytral striae deep, the outer ones scarcely 

 abbreviated, the base of the antenna? and the feet pale ; the last joint of the 

 palpi is longer than in the neighboring groups, but acicular and not at all 

 conical. 



Euplectus parviceps Maklin, belongs to Faronus Aube. 



Corymbites caricinus Esch. = C. telum Lee. 



Cryptohypnus fall ax Mann. From this species C. picescens Lee, 

 found at Lake Superior, seems scarcely to differ ; in the latter, however, the 

 punctures are a little stronger, and the size somewhat larger, but hardly suf- 

 ficient to establish a specific difference. The names were both published in 

 1853, but that of Mannerheim has priority by a few months, 



Rhagonycha binodula Mann, does not differ from Telephorus f r a x i n i 

 Lee. (Cantharis fraxini Say, Telephorus nigrita Lee), which is very abundant 

 at Lake Superior, and is found also in Pennsylvania. 



Notes and descriptions of other Northern Species. 



Galosoma laqueatum, robustum, apterum, nigro-ameum, capite thorace- 

 que punctulatis et rugosis, thorace latitudine duplo breviore postice angus- 

 tiore, angulis posticis productis subacutis, margine anguste reflexo, elytris 

 ovatis punctatis obsolete striatis costis tribus catenatis lsevibus parum eleva- 

 tia. Long. -67. 



Saskatchewan. In sculpture resembles C. moniliatum Lee. and C. can- 

 nellatum Esch.; the former has the thorax much more strongly punctured 

 and the elytra oblong oval, and much narrower ; the latter is winged, and has 

 the posterior angles of the thorax less prolonged and broadly rounded, and 

 the elytra more convex, with the sides less rounded. 



Nebria m o e s t a Lee. I have received from Russian America two species 

 under the name N. Mannerheimii Fischer. The one, received from Baron 

 Chaudoir and Count Mnizech, has the sides of the thorax moderately rounded, 

 with the posterior angles rectangular and not very prominent ; the stria? of the 

 dytra appear smooth, and the outer ones are less impressed at the tip. This 



[July, 



