ORDER COLEOPTERA. 229 



three articulations of the anterior tarsi are dilated in the 

 males.* 



Patrobus, Meg. 



Have fiHform antennae, straight, and without bundles of 

 hairs, with the fourth and the following articulations equal, 

 and almost cylindrical. The mandibles are of the usual size. 

 The labrum is in a transversal square, with the interior edge 

 straight. The length of the labial palpi does not exceed that 

 of the maxillary. The corslet is in the form of a truncated 

 heart, with the posterior angles acute. The first two articu- 

 lations of the anterior tarsi alone, are dilated in the males. 

 The eyes are less projecting, and the neck is less narrow than 

 in the preceding sub-genus. — Carahus riifipes^ Fab. C. exca- 

 vattis, Payk, Panz. ibid, xxxiv, 2. M. le Comte Dejean, in 

 the catalogue of his collection, mentions two other species, 

 one of Portugal, and the other of North America. 



We shall now pass to the carabici, whose anterior legs 

 have no emargination in the interior side, or which have but 

 one, but commencing very near the extremity of these legs, 

 or not advancing on their anterior face, and forming only an 

 oblique and linear canal. The tongue is often very short, 

 terminating in a point in the middle of its summit, and ac- 

 companied with paraglossae, also advancing in a point. The 

 mandibles are robust. The last articulation of the external 

 palpi is usually more large, compressed in the form of a 

 reversed triangle or hatchet in some, almost spoon-formed in 

 others. In the males it is often more dilated, which is pecu- 

 liarly sensible in the procerus. The eyes are projecting. 

 The elytra are entire, or simply sinuated at their posterior 

 extremity. The abdomen is usually voluminous compara- 



* Loricera cenea, Lat. ; Carahus pilicornis. Fab. Panz. Faun. Insect. 

 Germ. XL. 10; Oliv. Col. III. 35, xi. 119. Dej. Spec. II. p. 293. 



