COLEOPTERA. 369 



enclosed in amber, that belongs to the Museum. A third is met 

 Avith in Java. 

 Those, in which the elytra are as long as the abdomen, or not 

 much shorter, form two subgenera. 



Here, the antennae are compressed and serrated, the joints trans- 

 versal j thorax almost square. Such is the 



Hyleccetus, Lat. — Meloe, Cantharis, Lin. — Lymexylon, Fab. 



H. dermestoides; Meloe Marci, L., the male; Lymexylon morion 

 Fab,; L.proboscideum, Id.; Cantharis dermestoides, L., the female; 

 L. dermestoides, Fab., Id.; Oliv., Col., II,' 25; I, 1, 2, It. The fe- 

 male is six lines in length; pale-fulvous; pectus and eyes black. 

 The male is black; the elytra sometimes blackish, and some- 

 times reddish with a black extremity. Germany, England, and 

 the north of Europe. 

 There, the antennae are simple, slightly or not at all compressed, 

 and almost moniliform. The thorax is nearly cylindrical. 



Lymexylon, Fab. — Cantharis, Lin. — Elateroides, Schaeff. 



L. navale, Fab., the female; Z. flavipes, Id., the male; Oliv., 

 lb., 1, 4. Length of the preceding, but narrower; pale-fulvousj 

 the head, exterior margin, and extremity of the elytra, black; 

 the latter colour rather more predominant in the male. This 

 Insect is very common in the Oak forests of the north of Eu- 

 rope, but rare in the vicinity of Paris; its larva is very long 

 and slender, almost resembling a Filaria. It multiplied so ex- 

 cessively in the dock-yards at Toulon some years ago, as to 

 destroy great quantities of timber(l). 

 In the others the palpi are very short, and similar in both sexes(2). 

 The antennae are always simple and of equal thickness throughout. 

 The tarsi are short, and the penultimate joint in some is bilobate. 



The body is of a firm consistence, the top of the head unequal or 

 sulcated, and the thorax rJearly square or suborbicular. 



CupES, Fab. 

 Joints of the antennae almost cylindrical; penultimate joint of the 



(1) The Lymexylon proboscideum of Olivier, from which he took his description, 

 and which is now in the cabinet of Count de Jousselin of Versailles, should 

 form a separate g-enus. See also the Lymexylon JlabelUcorne of Panzer, Faun. 

 Insect. Germ., XI, 10. 



(2) The last joint, at least that of the maxillary palpi, is somewhat thicker and 

 almost ovoid. 



Vol. III.— 2 W 



