2 E. T. Atkinson — Catalogue of the Carabidse. [Snpplfc. 



Following the suggestions of the later antbora, Leconte divided the 

 whole family into three sub-families, formed thus :— 

 Middle coxse distant ; 



Enimera of the mesouotum reaching the coxse ... 1. Carabidje. 

 Epimera of the mesonotum not reaching the coxse ... 3. HARPALiDiE. 

 Middle coxse contiguous ... ... ... 2. Oz^NiDiE. 



In the Carahiom^ he placed the tribes Omophroniniy Hiletini^ Carabini, 

 and Scaritini. To the second sub-family he attached the Ozcenini and 

 Pseudomorphini, and all the rest to the third sub-family. Leconte, 

 writing of the Coleoptera of North America, did not indicate the position 

 of the extra-American genera. 



In 1880, t Kolbe, starting with the hypothesis that the land-beetles are 

 later than the water-beetles, and that the points common to both are 

 of primary value in clafcsification, divided the family ' Carnivora' into six 

 sections, which are further subdivided into groups. His arrangement, 

 however,- does not help us, and the Y>\-dcmg oi the famWy Cicindelidce as 

 a simple subsection of one of his groups does not appear to be correct. 



In 1881, Dr. G. H. Horn, :{: reviewed the genera of the Carabidce of 

 North America, and, in doing so, gave the following arrangement of the 

 Adephagous families, which is followed in the present catalogue : — 



I. Metasternum with an ante-coxal piece, separated by a well- 

 marked suture, reaching from one side to the other, and 

 extending in a triangular process between the coxse. 

 Antennae 11-jointed : posterior coxse mobile and simple; habits 



terrestrial. 

 Antennae inserted on the front above the base of the mandibles : 



Cicindelidce. 



Antennae arising at the side of the head, between the mandibles 



and ihe eyes : Carabidce. 



Antennae 10-jointed : posterior coxse fixed, and with large plates 



almost entirely concealing the abdomen : habits aquatic : 



Haliplidce. 

 II. Metasternum with a very short ante-coxal piece, the suture in- 

 distinct, posteriorly not prolonged between the coxae: habits 

 aquatic: legs ambulatorial : anterior coxae globular :,. 



A mphizoidcB, 

 Legs natatorial : anterior coxae conical : Pelobiidce. 



t Naturliches System der Carnivoren Coleoptera, in Deutsche Ent. Zeits., xxir, 

 1880, p. 258. 



X * On the genera of the Carabidse, with special reference to the fauna of Boreal 

 America,' in Trans Amer. Ent. Soc, 1880, p, 91-196. 



