390 CLASSIFICATION OF THE CARABID5: 



I have adopted the genus Eurydactylus, although its characters are scarcely different 

 from those ascribed to Dinodes. To Ferte's typical species E. tomentosus (Epomis 

 toment. Say,) must be added Chlcenius purpuricollis Randall, which I formerly placed in 

 Dinodes. 



The species of Chlcenius are very numerous, and many are so closely related that their 

 characters could be developed only in a complete synopsis, which must be postponed for 

 the present. For the sake of avoiding confusion, the following synonyms and corrections 

 may be found useful : 



C. apicalis||Zec. (Ann. Lye. 5, 179,) must be changed to C. posticus, as the name 

 is preoccupied. 



C. perviridis Lee. (Ann. Lye. 4, 434) is only a slight variety of C. sericeus. 



C. smaragdinus Chaud. (Bull. Mosc. 1843,) bears the same relation to C. prasinus. 



C. c o r d i c o 1 1 i s Kirby (Faun. Bor. Am. 122,) is not synonymous with C. c h 1 o r o - 

 phanus Dcj. as formerly stated by me. 



C. atripennis Lee. (Ann. Lye. 4, 436,) must be united with C. tricolor. 



C. cobaltinus Dej. and C. congener IjCc. are both synonyms of C. a) s t i v u s Say. 



C. virens Chaud. (Bull. Mosc. 1843,) is evidently C. circumcinctus Say. 



C. niger Randall, has recently been mentioned as C. exaratus Lee. by Ferte, (Ann. 

 Ent. Soc. Fr. 1. c. 249.) 



C. emarginatusj/urfo/, is evidently C. i m punc t i fr o n s Say, and not C. tricolor, as 

 formerly stated by me, (Ann. Lye. 4, 436.) 



o. Oodides. 

 A little group, belonging evidently to the Chlcenius series, but remarkably distinguished 

 from all the other groups having the epimera of the mesothorax not diagonally divided, 

 by the close approximation of the scries of ocellate punctures to the margin of the elytra, 

 and the confluence of the 8th and 9th stria?. The ligula is free and dilated at tip: the 

 mentum toothed in the middle : the labrum is always flat, the three basal joints of the 

 antennas glabrous, and the palpi filiform: the presternum is produced a little posteriorly, in 

 all the species known to me, and the mesosternum is concave: the dilatation of the tarsi 

 of the male is variable in the different genera, but they are always brush-like beneath, as 

 in the two preceding groups. 



Ferte, in his revision of Patellimanes, already cited, seems to have entirely overlooked 

 the remarkable sexual differences between the genera of this group, differences which are 

 altogether anomalous in the division " Patellimanes." The genera are thus related : 

 Tarsi omncs subtus pilosi ----- Lachnocrcpis Lee. 



Tarsi postici subtus glabri. 



Tarsi antici maris articulis 4 dilatatis ; (corpus punctulatum) Anatricliis Lee. 

 Tarsi antici maris articulis •"> dilatatis; (corpus supra hove.) 



Antennae filiformes tcnucs - Oodcs Bon. 



Antenna; crassiores coinpressie - - - Evolencs Lee. 



