COLEOPTEEOUS INSECTS. 127 



these two, the former is the most abundant in the 

 northern counties of Scotland, and the elevation at 

 which it is found on the mountain? shows it not to 

 be abhorrent even of a more northern climate. The 

 latter occurs in considerable numbers in the north- 

 west district of Sutherlandshire, and, next to C. gla- 

 bratus, is the most common species, C. catenulatus 

 becoming scarce, and the specimens small and 

 dwarfish, which may be assumed as an indication 

 of its having nearly reached the natural limit of its 

 extension in a northern direction.* 



The genus Tefflus, which was first constituted 

 by Dr Leach, differs from the two preceding genera 

 in having the labrum or upper lip entire or with- 

 out any notch. It includes only a single species, 

 which has been named after a celebrated naturalist 

 of Vienna. 



TEFFLUS MEGEItLEI. 



PLATE II. Fig. 3. 



Carabus Megerlei, Fabricins, Syst. Eleiith. p. 1G9 — De* 

 jean, Spec. Geni-r. ii. p. 21. 



This insect is seldom much short of two inches 

 in length. It is entirely of a uniform glossy black 



• In a recent expedition to explore the natural pro- 

 ductions of Sutherlandshire, upwards of forty specimens 

 of C. clathratus were procured, and C. glabratus might 

 have been obtained almost in any number. 



