56^ CLASS INSECTA. 



emarginated, and the three last articulations but one of the 

 antennas almost globular, and not sensibly transverse. 

 (Trogosita calcar, Fab.) 



Upis, Fab. 



Have the corslet in a long square ; the body narrow, but not 

 linear ; the anterior edge of the head strait , without emargi- 

 nation, and the articulations of the antennae preceding the 

 last, lenticular and transverse.* 



Tenebjiio (Proper), Lin. Fab. 



Do not differ from upis but by having their corslet broader 

 than long. 



Is frequently found, especially towards evening, in the un- 

 frequented places of our houses, in bake-houses, flour-mills, 

 on old walls, &c. 



The Meal-worm, (Tenebrio molitor, Lin. Oliv. Col. III. 

 57. i- 12.) seven lines long, of a brown, almost black above, 

 marron-colour, and shining underneath. Corslet of the 

 breadth of the elytra, square, with two posterior impressions ; 

 cases punctuated and striated. 



Its larva is long, cylindi'ical, ochreous, scaly, and very 

 smooth. It lives in bran and flour, is given to nightingales, 

 and is transformed into a nymph in the substance, which 

 serves it as food. 



T. Grandis is found in Brazil, under the barks of old 

 trees ; shoots through the anus, and to the distance of more 

 than a foot, a caustic fluid. Other species of the same coun- 

 try, but smaller, cover themselves entirely with this substance. 

 I am indebted for these observations to M. de la Cordaire.-f- 



* Upis ceramhoides, Fab. ; N. saperdoides, Base. 



f See, for the other species, the Cat. of the Collect, of M. le Comte 

 Dejean, and Fabricius. But this genus, as it is actually composed, has 



