146 Memoirs on the Coleoptera 



very fine and rather well separated; tarsi slender, the first two 

 joints of the anterior very feebly dilated in the male; sides of the 

 metasternum with a few moderate punctures. Length 3.8-4.3 mm.; 

 width 1. 6-1. 75 mm. California (Lake Tahoe). Three examples 

 taken by the writer, with which are united a series of seven specimens 

 from Colorado, Idaho (Coeur d'Alene) and Oregon, scarcely differing 

 among themselves and varying chiefly in the distinctness and 

 continuity of the transverse subbasal pronotal sulcus. 



specularis n. sp. 



This genus differs from all the others in this part of the Carabidae, 

 excepting Omophron, in having no trace whatever of dorsal elytra! 

 foveae; this is rather remarkable if Trachypachus be really closely- 

 related, in view of the exceptional development of these foveae in 

 such genera as Blethisa, Loricera and Pelophila, and may indicate 

 that it is more closely allied to Diachila, where however three 

 foveae on each elytron are sufficiently evident, though very shallow 

 and diffuse. There can be no doubt, however, that Trachypachus 

 is one of the most widely and completely isolated of Carabid genera. 

 The genus Systolosoma Sol., of Chile, said to belong to the same 

 subfamily, I have not seen. 



Loricera Latr. 



This is another remarkably distinct genus, having however a 

 more normal outline for the first division of the Carabidae, and with 

 the hind coxae abbreviated externally as usual, but having peculiar 

 antennae, the basal joint being long and the next three thicker than 

 the following joints, with tumid elevations, each bearing a long 

 stiff seta. As generally observable in this section of the family, 

 the large dorsal punctures of the elytra are variable and, although 

 assumed by Horn as the basis of his classification of the species, 

 it may be noted that in californicus, although there is but a single 

 series of foveae in most cases, as stated by that author, two of the 

 eight examples in my collection have two instead of one series 

 on each elytron. In neoscoiica Lee, which I prefer to hold as dis- 

 tinct from carulescens Linn., my four examples from Lake Superior, 

 Maine and Labrador, show no tendency to duplication of the series 

 of foveae; these specimens are all of an obscure subaeneous lustre, 

 without trace of cserulescence. The following is an apparently new 

 form near neoscotica: 



