THE CANADIAN ENTOMOLOGIST. 173 



antennae piceous : prothorax minutely punctured, most visibly at the 

 sides, which are depressed*; lateral margin reflexed ; elytra very obtuse 

 at the apex, they have the appearance of being acuducted which seems 

 to be produced by the pubescence : legs piceous or rufo-piceous. 



[106.J 151. NlTlDULA OSSIUM Kirby. Length of body 1 ' •_> --1^4 

 lines. Several specimens taken in Lat. 65°. 



Mr. Stephens regards this as a variety only of the preceding species. 

 but it is smaller, narrower in proportion, the legs and stalk of the antennae 

 are paler, and the elytra and sides of the prothorax, in the British as well 

 as American specimens, are piceous. In other respects they agree. 



r 52. Nitidula DISCOIDEA /w/v.- Length of body 1^3 lines. Many 

 specimens taken in Lat. 65°, 



Considerably smaller than the British specimens. Body subdepressed, 

 black, above minutely punctured, subpaibescent. Stalk of the antennae ; 

 sides of the prothorax, which has posteriorly a pair of discoidal obsolete 

 impressions, legs and anus, rufous : elytra with a large anterior discoidal 

 suborbicular pale-rufous spot common to both, in which, in some speck. 

 mens, is a black dot : apex of the elytra obscurely variegated with rufous. 

 Fabricus, and after him Mr. Marsham, describes the legs of this species as 

 black : but others have properly denominated them by the term ferrugi- 

 nous and piceous. In the American specimens they vary in colour from 

 piceous to pale-rufous. 



[107.] 153. Ips De Jeanii Kirby. — Plate ii., tig. 4.- Length of body 

 2 l 4 lines. Three specimens taken in Lat. 65°. 



Body linear, depressed, thickly and minutely punctured, glossy, black 

 or dark piceous. Head with a punctiform impression in the vertex, and a 

 larger impression on each side between the eyes : prothorax quadrangular, 

 rather narrowest behind : elytra piceous or ruto-piceous, with two oblong 

 white spots at the base, forming an interrupted line, and two oblique 

 nearly parallel ones below the middle : legs piceous. In the other sex the 

 elytra are subacuminate. Variety B. With five white spots, viz.: r, 2, 2. 

 [Taken in Canada ; and north shore of Lake Superior (Agassiz).] 



[108.] 154. Choleva, (Catops) Spenciana Kirby. — Length of body 

 2 lines. A single specimen taken. Locality not stated. 



Body black, covered with decumbent pale hairs. Head minutely 

 punctured : antennae shorter than the prothorax, the two first joints 

 ferruginous, the eighth shorter and smaller than the rest : mouth and 

 palpi ferruginous ; prothorax not visibly punctured with all the angles 



