INSECTA. 



minate by a fusiform joint ending in a point. The body is elongated 

 and cylindrical, and the mandibles are long, narrow, and without any 

 remarkable teeth, like those of the Oxygnathi. 



OXYSTOMUS, Lat. 



The labial palpi almost as long as the exterior ones of the maxillae, 

 recurved, the first joint salient and cylindrical, the second but slightly 

 elongated, and the last fusiform, long and acutely pointed at the end ; 

 the antennae completely moniliform from the middle of their length, 

 with the first joint as long as the three following ones united *. 



CAMPTODONTUS, Dej. 



The labial palpi evidently shorter than the external ones of the 

 maxillae, not recurved, and terminated as well as the latter by a fusi- 

 form joint ; a greater part of the joints of the antennae resembling in- 

 verted cones ; the length of the first hardly surpassing that of the two 

 following ones taken together f. 



The others, whose anterior tibiae are not dentated externally, but 

 simply didactyle at the end, have short mandibles, projecting but lit- 

 tle beyond the labrum ; the labrum coriaceous and entire ; the ligula 

 advancing beyond the emargination of the mentum, glabrous, or but 

 slightly pilose, with separate, salient, and membranous paraglossae ; 

 the exterior palpi are terminated by an oval joint, acuminated at the 

 extremity. 



They are small, frequent humid places, and are not strangers in 

 northern countries. 



CLIVINA, Lat. 



Three stout teeth on the external side of the two anterior tibiae, and 

 one on that of the next two J. 



DYSCHIRIUS, Bon. CLIVINA, Dej. 



Nothing but dentations or very indistinct and small spines on the 

 external side of the two anterior tibiae, and where the extremity of 

 this side is usually extended into a long point in the form of a spine, 

 and opposed to another consisting of a stout spur on the internal side. 

 The last joint of the labial palpi is thicker in proportion than that of 

 the Clivinae, and almost clavato-securiform. The thorax is usually 

 globular . 



Our second and last subdivision of the Bipartiti will comprise those 

 whose anterior tibiae are neither dentated externally, nor bidigitated 

 at the extremity, and where the second joint of the antennae is evi- 

 dently shorter than the third. They closely approximate to the two 

 last subgenera in the organs of manducation, and have been confounded 



* Oxyistomus cylindrictis, Dej. Spec. I, p. 410. Brazil. 



f Camptodontus cayennensis, Ib. II, p. 477. 



J Tenebrio fossor, L. ; Scarites arenarius, Fab. ; Clairv. Entom. Helv., II., viii, 

 A, a. The Clivinae of Count Dejean, Spec. 1, 411, 1 7. 



Clivinse, 8 21, of Count Dejean; but the eighth, or the arctica, seems to 

 present the characters of a Cephalotus. 



