226 CLASS INSECTA. 



longitudinal line in the middle. The last articulation of the 

 external palpi is larger, and almost hatchet-formed. 



The body is almost parallelipiped, with the head almost as 

 wide as the corslet, and the elytra strongly striated, and often 

 careened laterally. The mandibles are arched below, at the 

 internal edge, and, as it were, truncated afterwards, and 

 terminating in a point. The species which are known are 

 American. 



Those have the mandibles very obtuse, emarginated at 

 their extremity, or unindentated underneath. 



.LiciNus, Lat. 



Have the last articulations of the external palpi larger, and 

 almost in the form of a hatchet. The palette of the tarsi of 

 the males is broad, sub-orbicular, and formed by the two 

 first articulations, of which the basilary is very large.* 



Badister, Clairv. Amblychus, Gyll., 



In which the last articulation of the external palpi is ovali- 

 form. That of the labial is simply a little thicker (often 

 terminated in a sharp point). The palette of the tarsi is in a 

 long square, and formed by the first three articulations.-h 



The last patellimani, or those which compose their 

 second general division, have the head suddenly narrowed 

 behind the eyes, and distinguished, as it were, from the cors- 

 let, by a sort of neck or pedicle. It is often small, with the 



* Carahus Agricola, Oliv. Col. III. 55. V. 53; C. Selphoides, Fab.; 

 Sturm, III. Ixxiv. a ; C. Emarginatus, Oliv. ihid. XIII. 1 50 ; Carahus cas- 

 sideus. Fab. ; C. depressus, Payk, Sturm, ihid. LXXIV v. V. ; C. Hoffvmn- 

 segii, Panz. Faun. Insect. Germ. LXXXIX. 5. See the species of M. le 

 Comte Dejean, II. p. 392, 401. 



•j- Carahus hipustu'atus. Fab. Clairv. Entom. Helv. II. xiii. ; C.peltatus 

 Ilig. Panz. ibid. XXXVII. 20. See the second volume of the Species of 

 Count Dejean, pp. 405, 411. -• 



