CARABID^, NEBRIA. 59 



Tliis and the two following genera are very closely allied to 

 each other in structure, but there appears sufficient diversity of 

 habit to justify their separation, as proposed by my friends Dr. 

 Leach and Professor Bonelli, although De Jean has reunited them 

 under the genus Nebria, and others admit them to be subgenera 

 only; but as the names by which the divisions of natural objects 

 are called will ever be subject to the capricious views of individuals, 

 I shall not here attempt to discuss the question whether the genera, 

 above alluded to, ought to be so termed. 



The Nebrice usually frequent the sea-coasts, and may be readily 

 known from the congenerous groups by their pallid hues, more or 

 less varied with black ; the most evident differences in structure 

 consist in the superior length of the terminal joint of the internal 

 maxillary palpi compared with that of the basal, the length of the 

 third joint of the maxillary palpi, the rotundity of the labium, and 

 the absence of an emargination on the anterior tibia. 



Sp. 1. complanata. Pallide Jiavescens, elytris pallidioribus, striatiSf faseiis 

 duabus irregularihus nigricantibus. (Long, corp. 8 — 9|^lin.) 



Ca. complanatus. Linne. — Don, xiv. pi. 488. — Ne. complanata. Steph. Catnl. 

 No. 81. 



Pale yellowish^ with the elytra paler^ striated, and adorned with two very irre- 

 gular transverse dusky or black bands, united by longitudinal hues, and 

 formed of small elongate confluent spots : suture black, except towards the 

 apex of the elytra : legs and antennse pale yellowish or testaceous : eyes black. 



It varies in having the black fascise more or less obliterated, and occasionally 

 the spots of which they are composed are so thickly confluent as nearly to 

 cover the entire disc of the elytra, leaving a pale margin only. 



Originally taken by Sir Joseph Banks near Swansea, and sub- 

 sequently found in profusion by Dr. Leach at the same place. It 



J Sp. 2. coUaris. Nigra, ore, antennis, pedibus, thoracis medio, elytrorumque 

 Umbo lato pallide testaceis. (Long. corp. 7 hn.) 



Ca. coUaris. Thunburg. — Ca. lateralis. Turton. — Ne. coUaris. Steph. Catal. 

 No. 82. 



Black, with the mouth, antennas totally, the thorax (except a narrow black mar- 

 gin in front and behind), the legs, and a broad margin to the elytra pale tes- 

 taceous : the latter striated. I am at a loss to account for the introduction of 

 this species into our Fauna, unless it has been mistaken for Ne. Uvida, of 

 which Gyllenhal and other continental entomologists assert that it is merely a 

 variety ; but as that insect has lately been taken in plenty, as hereafter men- 

 tioned, and all the specimens correspond with each other, I cannot assent to 

 that opinion. 



