COLEOPTERA. — TENEBRIONIDJE. 



319 



been introduced into this country with foreign flour One of the 

 species, U. cornuta, is distinguished by the very large size of the 

 horn-Hke mandibles of the males i^fuj- 38. 21.). Mr. Bainbridge has 

 found it alive in bakehouses in London. In the same situation Ul. 

 (Alphitobius «S'^) fagi [fg. 38. 19.) has been found by W. Longman, 

 Esq., to whom I am indebted for specimens of the insect and its 

 larvae {Jig. 38. 20.), which closely resembles that of Tenebrio ; but is 

 more elongate and narrow, with the terminal segment of the body 

 unarmed. Mr. Ingpen has in like manner discovered Stene ferru- 

 ginea {fig. 39. 1.) and its larva in bran. The latter {fig-. 39. 2.) is 



Fig. 39. 



not so cylindrical, and somewhat broader in proportion to its size 

 than the meal worm, and the body is terminated by two acute 

 conical, diverging, and recurved spines, arising from the terminal 

 segment, which has also on its under side two fleshy and white anal 

 prolegs {fig. 39. 3.). This species, however, is more general in its 

 habits than the preceding, since I have frequently discovered both 

 the imago and exuviae of the larva in the bodies of old and ill j)re- 

 served specimens of exotic insects. 



The larva of Crypticus glaber Dej. is described by Bouche {Naturg. 

 der Ins. i. 19L) as very closely resembling that of Helops; it is cy- 

 lindrical and filiform, with four spines at the extremity of the terminal 

 segment. It is found in the autumn and winter in rotten willows. 



The species of Upis are found in rotten boleti, or other vegetable 

 matters. I have detailed the natural history of a South American 

 species found, with the exuviae of the larva, in the interior of a large 

 nut, in a memoir read before the Entomological Society. 



Count Fischer de Waldheim ( Oryctographie du Goiiv. de 3Iosc. fol. 

 1830.) has figured the larva {fig. 39. G.) of Opatrum pygma3um ? Dcg. 



