340 CLASS INSECTA. 



labial, which are larger than the preceding, is hatchet-formed. 

 The knob of the antennae is but little longer than broad, and 

 is composed of close articulations ; the third is longer than 

 the second. The jaws are terminated by a prominent and 

 fringed lobe. The corslet is depressed in front. 



These insects are found on flowers ; their larvae devour 

 those of some apiary insects. 



Their stomach is wider in front and without wrinkles. 

 Their intestine is short, with two swellings behind. Accord- 

 ing to M. Dufour their crop is so short, that it is almost 

 entirely concealed in the head. 



The generative organ of the male is much more compli- 

 cated than that of the Melyrides, Lampyrides, and other 

 Malacodermi. The last ring of the abdomen is broadly 

 emarginate. These, with the Peltis of Fabricius, are the 

 only coleoptera Avhich have six biliary vessels. Their inser- 

 tion is coecal. 



Attelabus apiarius, Lin. Trichodes apiarms, Fab. Oliv. 

 Col. IV. 765 I5 4, is blue, with the cases redi They are 

 traversed by three bands of a deep blue, the last of which 

 occupies the extremity. The larva devours that of the do- 

 mestic bee, and is very injurious to the hives. 



That of another species, {Trichodes ahearius, Fab. Oliv. 

 ibid. I. 5, a. b. Reaum, Insect. VI. viii. 8, 10,) almost similar 

 to the preceding, but having a spot of blueish black on the 

 scutellum, lives in the nests of the mason-bees (G. osmie) of 

 Reaumur, and lives at the expense of their posterity. 



Necrobia, Lat. Corynetes, Fab. 



Have the four palpi terminated by an articulation of the 

 same size, in the form of an elongated and compressed tri- 

 angle ; the second and third articulations of the antennae are 

 almost equal, and the terminal knob is elongated, and with 



