306 INSECTA. 



smaller at base; last joint of the labial palpi in the form of a re- 

 versed and elongated cone. 



The Carabe savonnier of Olivier, Col. Ill, 38, iii, 26, which 



is used in Senegal in lieu of soap, belongs to this subgenus(l). 



In the following, the,exterior palpi are terminated by a wider, 



compressed joint, in the form of a reversed triangle or securiform, 



and more dilated in the males. The tooth of the emargination of 



the mentum is always bifid. 



Epomis, Bon. 



To which we will unite the Dinodes, in which the last joint of the 

 palpi is somewhat more dilated(2). 



The genus Lissauchenus of Mac Leay, Jun. Annul. Javan., I, 

 i, 1 appears to me to differ but slightly from the preceding. 



The others, most commonly, have their mandibles very obtuse, or 

 as if truncated and forked, or bidentated at the extremity. Their 

 labrumis distinctly emarginate or bilobate, and the anterior portion 

 of the head from which it arises, is bordered and frequently concave. 

 There is no tooth in the emargination of the mentum. The tarsial 

 palette of several is broad and almost orbicular. 



The mandibles of these latter terminate in a point without any 

 tooth or emargination under it. 



The tarsial palette of the males is composed of the three first 

 joints. 



Rembus, Lat. 



The labrum bilobate; exterior maxillary palpi filiform; last joint 

 of the labial palpi somewhat enlarged, and in the form of a reversed 

 and elongated cone. 



The head, in comparison with the width of the body, is narrow; 

 the antennae and palpi are slender(3). 



(1) C. ductus, Fab.; Herbst. Archiv., XXIX, 7; C. festivus,~Fab.; Panz. lb., 

 XXX, 15; C. spoliatus, Fab.; Panz. lb. XXXI, 6; Chlsenius velutinus, Dej. ; 

 Carabus ductus, Oliv., Col. Ill, 35, iii, 28; C. holosericeus, Fab.: Panz., lb., XI, 

 9, a; C. nigricornis, Fab.; Panz., lb., XI, 9, b. c; C. agrorum, Oliv., lb., XII, 

 144; C. A-sulcatus, Payk., and several other exotic species of Fabricius, such as 

 the tenuicollis, oculatus, posticus, micans, quadricolor, stigma, amnion, carnifex, &c. 

 See the Spec. Dej. II, p. 297, et seq. [Add of American species the C. rujilabris, 

 laticollis, rufipes, cobaltinus, nemoralis, tricolor, he, &c. Jim. Ed.] 



(2) Dinodes rufipes, Bon.; Dej. Spec. II, p. 372; Carabus azurcus, Duft. ; Chlse- 

 nius azureus, Sturm., V, exxvii; Epomis circumscripius, Dej., Spec. II, p. 369; 

 Carabus ductus, Ross., Faun. Etrusc, I, iv, 9; Carabus crcesus, Fab. 



(3) Rembus politus, Fab.; Herbst., Archiv. XXIX, 2; R. impressus, Dej.; 

 Carab. impressus, Fab. 



