and which appear to partake of the characters of several groups,— 

 for instance, with the depressed form and velvety pilosity of niauy 

 Elateridee. it has five joints to the two first pairs of legs, aud four only 

 to the hind pair. Its head, jaws, and legs are essentially Longicorn, 

 the number of joints of the tarsi being not a necessary character of the 

 group ; the tarsi of Parandra are pentamerous, and Dorx pentamera, 

 an AustraUan insect described by Mr. Newman, has hkewise five 

 joints to all the tarsi. The sternum of Trictenotoma is also pecuhar, 

 that of the prothorax being received into a noteh of the mesothorax, 

 while the sternum of the metathorax is capable of being firmLy fixed by 

 " dovetailing," as it were, into the hinder noteh of the mesothorax; in 

 fact, this structure mušt enable the insect, if placed on its flat back, 

 to "right" itself,like those Beetles called "Skip-jacks" (Elaieridee) . 

 In some species, such as T. Childrenii (G. R. Gray), T. Templetonii 

 (Westw.), and T. Grayii (F. Smith), the sternum of the metathorax 

 bulges ; in T. cenea (Parry) that part is flattened, and the thorax is 

 curiously serrated on the lateral margiu in front, and has a very pro- 

 jeeting point on the side beyond the middle, and notched between 

 that point and the posterior angle, instead of being nearly straight 

 and simply angled as in the other three species. Of these Tricteno- 

 tomce, all the species described are in the Museum Collection ; the 

 T. Childrenii being the type female specimen from the Tenasserim 

 coast, described by Mr. G. R. Gray in one of the two insect volumes 

 of Griffith's edition of 'Cuvier's Animal Kingdom' (pi. 5 and 5*). 

 The T. Templetonii of Westwood (Oriental Ent. tab. 23, f. 3) is a 

 native of Ceylon ; Hke the former, it has a yellowish-grey pilė ; the 

 T. Grayii described by Mr. F. Smith in 1851 (Cat. Coleopt. Bnt. 

 Mus. Cucujidee, p. 18) is from Borneo, and has a purpUsh base Įpeneath 

 the more tawny pilė of the upper parts ; in the Museum there aie two 

 females, one from the collection of Mr. Alfred Wallace, who obtained 

 it at Sarawak. The T. cenea, the giant of the genus, is of a brassy 

 green, shghtly pilose above. The Museum has lately obtained a 

 specimen from India ; the specimen was found by a soldier at 

 Dhargeehng. 



To the šame family, and not very remote from the subfamily con- 

 taining Spondylis and its alhes, belongs, in the opinion of Dr. Bur- 

 meister, Mr. Westwood, and Mr. Leconte, the very anomalous Hypo- 

 cephalus, of which a fine figure, with some striking remarks, has been 

 published by Mr. Curtis in the " Transactions of the Linnean Society ;" 

 of this species, three specimens known to m e, exist in this coimtry, 

 one in Mr. Melly's great cabinet at Liverpool, a second drawn by 

 Mr. Westwood in the ' Arcana Entomologica,' from a specimen m his 

 own very curious collection, and a third exhibited at the Linnean So- 

 ciety in 1854, from the rare cabinet of Mr. Aspinall Turner of Man- 

 chester. This remarkable Prionidous insect, likę the Mole-cricket, 

 has been altogether constructed for a subterraneous hfe ; its marvel- 

 lously developed thorax, fossorial and burrowing legs, curiously de- 

 fended head, abbreviated anteunse, and other characters well sho\vu 

 by Mr. Westwood, and particularly by Mr. Curtis, all mark this ; 

 jiist as Dorysthenes of the East, a burrovving insect, is shown by 



