128 GEO. H. HORN, M. D. 



rates the epimera is so obsolete as not to be distinguished. It is to be 

 regretted that so able an entomologist should have allowed himself to 

 perpetuate an error when the truth was so nearly within his grasp and 

 so easily obtained, and had the above mentioned process (so well known 

 to microscopists) been made use of, more service would have been done 

 to science than by many ligular dissections. 



If I have correctly interpreted the feeble traces of the suture at the 

 base of the mentum this organ is not attached merely to the central 

 gular piece but also to the side pieces of the gula, in a manner similar to 

 that observed in the Pseudomorphinae. In all other Carabidae which 

 I have dissected the central gular piece is expanded at tip and forms 

 the entire basal attachment of the mentum even in those genera with 

 a very broad mentum. 



With a very indefinite relationship with the Pseudomorphinae the 

 present tribe shows very decided affinities with the Ozaenini. 



Tribe XVIIL— Ozeenini. 



Antennae arising under distinct frontal plates, the four basal joints not finely 

 pubescent but hairy. Clypeus prolonged at middle. Head more or less narrowed 

 behind the eyes to a neck and with at least two supra-orbital setae. Eyes round, 

 moderately prominent, irregular in outline behind', distant from the buccal open- 

 ing beneath by the moderately widened genoe. Mentum broad, the suture at base 

 usually very plainly visible, toothed (except Eusira), ligula moderate or small, 

 the paraglossse narrow and entirely adherent, the palpi variable in form, the 

 terminal joint usually cylindrical, flattened and truncate at tip, the maxillary 

 palpi similar. Thorax with numerous small setigerous punctures along the margin. 

 Body more or less pedunculate. Scutellum not prolonged between the elytra. 

 Elytra not margined at base, narrowly inflexed at the sides, margin interrupted 

 one-third from apex but without internal plica. Presternum not prolonged at tip. 

 Mesosternum very narrow, in some cases not separating the middle coxas. Meso- 

 sternal epimera broad, not attaining the middle coxae. Metasternal epimera visible. 

 Posterior coxae distant, the first ventral segment visible between them. Anterior 

 tibiae emarginate on the inner side the spurs distant. Tarsi slender, simple in 

 the two sexes. 



The sexual characters are feeble, the males sometimes having the anterior 

 femora toothed beneath. 



By all European authors this tribe has been placed in the series in 

 which the mesosternal epimera attain the coxal cavities. The idea 

 originated with Schioedte, has been adopted by Schaum and acknowl- 

 edged by Chaudoir. 



The latter gentleman with his usual sagacity realizes the impropriety of 

 such a position of the tribe and uses the following language (Ozenides, Ann. 

 Belg. xi, 1868, p. 3),.in reference to the epimera! character : "un caractere 

 auquel Schioedte et apres lui beaucoup d'entomologistes ont pendant quel- 

 que temps attache uiu' iniportaliee ({uc je trouve maintenant exageree." 



