172 GEO. H. HORN, M. D. 



the obliteration of the usual emargination known to . me, although the 

 epilobal piece is very distinctly present. 



The present tribe is divided into two groups : 



Eighth stria of the elytra with its oeellate punctures distant from the margin, 

 the ninth stria very distinct. Eyes regular in outline not truncate behind. 



Chl^nii. 



Eighth stria very close to the margin, the ninth indistinct. Eyes truncate 

 behind Codes. 



In the first group three genera occur in our fauna : 



Mentuni witli distinct lateral lobes. 



Toothed in tlie bottom of the emargination ChlseiiillS. 



Not toothed AiioiiiogloMsus. 



Mentum truncate in front ; Bracliylobus'. 



In the second group the genera may still be the subject of discussion, 

 those represented in our fauna are recognized by the following characters ; 



All the tarsi pubescent beneath. 



Anterior tarsi % with four joints not widely dilated. Clypeus with a setigerous 



puncture each side. Labrum 6-setose L<aclin<»crepis. 



Posterior tarsi not pubescent beneath. 



Anterior tarsi % with four joints dilated, the first three spongy beneath. 

 Clypeus without setigerous punctures. Labrum with six setse, the four 



central small and close, the outer large and erect Anatrichis. 



Anterior tarsi '^ with three joints dilated and spongy. 



Second joint of labial palpi without setfe in front Oodes. 



Second joint of labial palpi bisetose in front Evoleiies. 



EvoLENES has the antennae somewhat flattened. The clypeus has 

 a large setigerous puncture each side and the labrum six. It is the 

 only genus in the group in which the second joint of the labial palpi 

 has the setae so universally observed in the Carabidae. 



OoDES as above intended contains Oodes, Stenous and Crossocrepis 

 of Chaudoir. The latter is based on the supposed conformation of the 

 ligula which my own dissections prove not to exist. The other two 

 genera are separated by the mode of dilatation of the anterior tarsi. 

 In Oodes proper the clypeus has a setigerous puncture each side and 

 the labrum six in front, in the other two there are no clypeal punctures 

 and three only on the labrum. 



The inconstancy of the setigerous punctures in the Oodes is re- 

 markable, the only one absolutely present in all is the one over the eye 

 The entire absence of these punctures from the side of the thorax 

 would be an excellent means of separating the Chlaenii and Oodes, were 

 it not that even in Chlfenius these punctures although constantly present 

 are often lost in the general punctuation and the seta is small and hair- 

 like and not very evident except in the glabrous species. 



