PTEROSTICHIN/E 365 



Feronina n. gen. 



The species described by Schaeffer under the name Pterostichus 

 palmi, of which I have an apparently typical specimen, sent by 

 Mr. Beutenmiiller and taken in the Black Mts. of North Carolina, 

 presents no very marked peculiarities of habitus and would not be 

 considered as the type of a separate generic group, were it not for 

 the sake of consistency in basing genera to great degree upon the 

 number of discal punctures of the elytra. The type was compared 

 with lubricus Lee., by the author, but there is apparently no close 

 affinity between the two. Though less convex, palmi greatly re- 

 sembles the genus Monoferonia in the general outline of the body 

 and in the single elongate pronotal foveae, but differs not only in 

 having two discal punctures on the elytra, but in the long and dis- 

 tinct scutellar stria and in having the lateral series of ocellate fovese 

 widely interrupted at the middle. My single specimen is a female, 

 so that it is impossible to describe the ventral apex in the male for 

 comparison with Monoferonia or with Pterostichus lubricus, forming 

 the type of Paraferonia further on. Mr. Schaeffer states that in 

 the male of palmi the last ventral segment is not carinate at the 

 middle, and presumably there is also no impression. 



Euferonia n. gen. 



The rather numerous species of this genus form the most abun- 

 dant and conspicuous Pterostichid element of the Atlantic regions 

 of North America; they are usually rather large in size, of a very 

 polished deep black coloration in both sexes, convex upper surface 

 and deep elytral striation, the scutellar stria very long, sulciform 

 and conspicuous throughout. The thoracic apex is constantly with- 

 out trace of the transverse incised line of the Evarthrids. The 

 species are rather closely allied among themselves, so that LeConte 

 in later years and with constantly increasing supply of material, 

 was disposed to give them up in despair, uniting several of his ear- 

 lier species in synonymy with coracinus. The species form two 

 distinct subgeneric groups as follows: 



Prothorax relatively large, the sides rounding to the obtuse basal angles, 

 the foveae double or bistriate, frequently confluent Group I 2 



Prothorax relatively smaller, the sides feebly sinuate before the distinct 

 basal angles, the fovese long and single Group II II 



2 Carina near the hind thoracic angles obsolete. Body not very stout, 

 convex; head two-thirds as wide as the prothorax, with prominent 



