364 I.NSECTA. 



Dufour, their crop is so short that it is almost entirely concealed in 



the head(l). 



C. apiarius; Mtelabus apiarius, L.; Trichodes apiarius, Fab.; 

 Oliv., Col. IV, 76, 1, 4. Blue; elytra red, traversed by three 

 bands of deep blue, the last of which occupies the extremity. 

 The larva devours that of our domestic Bee, and does much 

 injury to hives. 



C. alvearius; Trichodes alvearius, Fab.; Oliv., lb., I, 5, a, b; 

 Reaum., Insect., VI, viii, 8 10. Almost like the preceding, 

 but with a bluish-black spot on the scutel. It inhabits the nests 

 of the Mason Bees Osmia of Reaumur, and feeds on their 

 larvae. 



Necrobia, Lat. Corynetes, Fab. 



The four palpi terminated by an elongated, compressed, triangu- 

 lar joint of the same size; the second and third joints of the antennae 

 nearly equal, and the terminal club elongated, with loose joints; no 

 depression in the thorax anteriorly. 



N. violacea, Oliv., Col., lb., 76, bis, I, 1; Dermestes violaceus, 

 L. Small; violet-blue or greenish, with similarly coloured legs; 

 elytra, with longitudinal series of punctures. Very common in 

 houses in the spring; it is also found in carrion(2). 

 We will terminate this tribe with a subgenus in which the two 

 penultimate joints of the antennae, more or less dilated internally 

 in the form of teeth, compose with the last, which is oval, a serrated 

 or semipectinated club. The palpi are terminated by a larger joint, 

 either in the form of an elongated or compressed triangle, or secu- 

 riform. Such are those which form the 



Enoplium, Lat. Tillus, Oliv. Fab. Corynetes, Fab.(3) 



The type of the fifth tribe of the Malacodermi, or the Pti- 

 niores, consists of the genus Ptinusot Linnseus, and of some 

 other genera depending on ? or which most closely approach 

 it. The body of these Insects is of a tolerably firm consist- 



(1) The genital organ of the male is much more complicated than that of the 

 Melyrides, Lampyrides, and other Malacodermi. The last abdominal annulus is 

 widely emarginated- They and the Feltes of Fabricius are the only Coleoptera 

 which have six biliary vessels they are inserted into the caecum. 



(2) See Olivier, genus Necrobie and Schcenh., Synon. Insect. 1, 2, p. 50. 



(3) Tlllus serraticornis, Oliv., Col. II, 22, 1, 2; T. Weberi, Fab.; T. damicornis, 

 Id.; T. dermesfoides, Scheff., Elem. Entom., 138; Corynetes sanguinicollis, Fab. 

 See Schcenh., Synon. Insect, I, 2, p. 46. 



