3G8 CLASSIFICATION OF THE CARABlD^E 



seem to have strong affinities; by the form of their epimera, however, they belong to the 

 present subfamily, and only indicate an osculation with the first division of the second 

 subfamily. 



Promecognathus, by the form of the mandibles, labrum, in short of every part of the 

 body except the legs, indicates an affinity with Scarites: Broscus appears to be related to 

 Promecognathus, by the antenna?, ligula, and legs, but differs in the parapleural being ap- 

 pend iculate: Mctrius agrees with Broscus in every respect except form of body; the tho- 

 rax being closely united to the trunk, and the presternum produced posteriorly as in the 

 Carabi. Haplochile leads off towards Morio, and Ozrena, differing from the latter by the 

 form and insertion of the antennae, but agreeing in these organs with Metritis. In view 

 of these affinities, I have classed all these genera in one group, placed between Ozasna 

 and Scarites, and distinguished by having the four basal joints of the antennas glabrous, and 

 the anterior tibia) emarginate and not palmated. The distinctions between them and the 

 Carabi are not obvious, as one genus of the latter, Loricera, has the anterior tibia? tole- 

 rably deeply emarginate. In the case of the genera of Carabi allied to Loricera, the base 

 of the maxilla? is strongly spinous or bearded, while in Promecognathus nothing of the 

 kind is seen. This will furnish an unfailing mode of distinguishing the two groups where 

 the diagnosis seems imperfect. 



Besides the osculation between the Psydri and Moriones of the preceding subfamily, there 

 is also an osculation between the Bembidia and the Pterostichus series through the Trechi : 

 this osculation is so close that Patrobus seems equally well placed in either division: this 

 genus and Pogonus are the only ones which I have seen in which the application of my 

 method of arrangement leads to doubtful results. The other genera of Scaritini show no 

 approximation towards the groups of the preceding division, except in the relation be- 

 tween Cychrus and Panaga?us: the relation between Ditomus and Scarites seems to me 

 to have been much exaggerated. 



The point of osculation between the Carabida? and Cicindelida? seems to occur in this 

 subfamily, in the Elaphri: a nearly allied genus of the Carabi (Opisthius) furnishes the 

 nearest approach to an osculation with the water beetles. 



ADEPHAGA. 



Colcoptera pentamera, prothoracis epimcris ct cpisternis distinctis; abdominis segmentis 

 tribus primis connatis. * 



Subserics 1. Coxa? antica? globosa? in prostcrno sita?, postica?' ad abdominis marginem 

 non cxtensa? : Cic'uidclidx et Carubidx. 



