394 CLASSIFICATION OF THE CARABID.E 



tibias, they seem to have more relation with the Brosci than with any other tribe, and 

 may properly form the passage from the Ozasnas to that tribe. There are probably many 

 foreign genera which have been considered as allied to Ozsena and Morio, which will enter 

 this group, but as the descriptions never mention the suture of the epimera, and but rarely 

 the form of the antenna;, it would be useless for me to attempt a work which every entomo- 

 logist with a foreign collection can do for himself. The characters presented by our two 

 species, Psydrus pice us Lcc. 4, 1 53 ; and Haplochile pygmcea Lcc. (Ann. Lee. 

 4, 208, Morio pygmscus Dej. 5, 512,) are these: — 



The antennas are somewhat granose, the first four or five points shining, the others 

 slightly pubescent; the first joint not longer than the others; the third joint longer than the 

 second or fourth; the head below the eyes is slightly sulcate; the mandibles are short and 

 stout; the labrum transverse, flat; the mentum is deeply emarginate, not toothed; the 

 posterior angles of the thorax are distinct, and the presternum not prolonged ; the abdo- 

 men moderately pedunculated; the parapleurse with a distinct posterior appendage; the 

 anterior tibire deeply emarginate, truncate at tip; the middle tibiae pubescent externally; 

 the ligula dilated at tip; the paraglossse apparently connate with it, but long and slender. 



r. Metrii. 



This group contains only one genus and one species, so far as known to me: it is M e- 

 t r i u s contractus, Esch., the position of which has puzzled entomologists very much. 

 Dejean places it after Notiophilus, with which it seems to have no relation whatever: 

 Eschscholtz says simply that it is a new genus of "Carabidos simplicipedes," without any 

 indication of its affinities. The following characters will exhibit my reasons for consider- 

 ing it as allied with Broscus, from which it seems to differ only in having the prostcrnum 

 produced, and the abdomen so large as to shorten the parapleurse. 



The antennas are slightly thicker towards the extremity: the first four joints smooth, 

 the other growing gradually pubescent, the first joint not longer than the second; the head 

 below the eyes not at all sulcate; the mandibles short, the labrum transverse, flat; mentum 

 deeply emarginate, toothed in the middle; thorax closely united wtih the trunk, prostcrnum 

 produced so as to cover the mesosternum; anterior acetabula entire, parapleural short and 

 broad, posterior appendage sufficiently distinct; anterior tibiae tolerably deeply emarginate 

 internally, slightly thickened at tip; anterior tarsi of the male with three joints dilated and 

 spongy beneath, the first being much longer and wider than the following; middle tibiae 

 strongly pubescent, both externally and internally: posterior tibiae pubescent internally. 

 Elytra with the marginal furrow very narrow, and the ocellatc punctures obsolete. 



The ligula is dilated, the paraglossae entirely connate with it, and indistinct. This group 

 with Broscus seems to have a tendency towards Panagams, of the first division of the pre- 

 ceding subfamily. 



s. Promccognath). 



But a single species of this group is known to me. P. 1 a> v i s s i m u s CJiaudoir* ( Eripus 



* Note sui le groupe des Stomides. Bull. Mosc. in hi. 



