COLEOPTERA. 53 



throughout, the anterior border of the head is emnrj^inated, and the 

 three last penultimaie joints of the antennai are almost glohular, and 

 not sensibly tninsversal *. 



Upis, Fab. 

 The thorax as in Calcar ; the body narrow, but not linear ; anterior 

 edge of the head straight and unemarginate ; penultimate joints of 

 the antenna; lenticular and transversal f- The 

 Tenerrio, Lin,, Fab., 

 Or Tenebrio properly so styled, only differs from Upis in the 

 thorax, which is more broad than long. 



T. molitor, L. ; Oliv., Col., Ill, 57, 1,12. Length seven lines ; 

 brown, verging on a black, above ; maronne and glossy beneath ; 

 thorax as wide as the elytra; square, and with two posterior 

 impressions; elytra striate and punctured. — Very common, in 

 the evening, in" the less inhabited parts of houses, flour-mills, 

 bake-houses, on old walls, &c. 



Its larva is long, cylindrical, of an ochreous yellow colour, 

 scaly, and very smooth. It lives in bran and flour, and is given 

 to the Nightingales. It becomes a chrysalis in the midst of the 

 substance on which it lias fed. 



T. gravdis, which is found in Brazil, under the bark of old 

 trees, darts a caustic liquid from its anus to the distance of more 

 than a foot. Other b\,it smaller species from the same country 

 completely cover themselves with this material. For these ob- 

 servations I am indebted to M. de la Cordaire |. 

 There, the penultimate joint of the tarsi is very small, in the form 

 of a little knot, and received into a longitudinal groove in the pre- 

 ceding, which is more dilated, and almost cordiform. 



The anterior edge of the head presents an emargination occupied 

 by a portion of the labrum. 



Heterotarsus, Lat. 



A subgenus founded on an Insect from Senegal, having all the 

 characters of a Tenebrio, but with singular tarsi. At the first 

 glance, the two anterior ones appear to consist of but four joints, 

 and the two others of three. 



FAMILY II. 



TAXICORNES. 



In this second family of the heteromerous Coleoptera, we find no 

 small corneous tooth on the inner side of the maxill?e. All these 



* Troyosiia calcar, Fab. 



f Upis ceramboides, Fab. ; — U. saperdoidcs, Bosc. 



X For the other species, see Catalogue, &c., Dej., and Fabricius. This genv.s, 

 however, as now composed, needs depuration ; several of its species belong to 

 Paaleria, or other subgenera. Some of them may even form ne-.v ones. 



