COLEOPTERA. 547 



Cerlallum, Dej., has the head at least as broad as the thorax, which is cylindrical, or slightly dilated in tie 

 middle. Type, C. rufieoUe, Fabr. [a French spei i 



Clytut, Fab., has the head narrower than the thorax, nearly globular. Clytus arcuatut, [a rare British species, 

 and others]. 



Callidium, has the thorax in like manner broader than the head, flattened, and orbicular. [Callid. Bajulum, a 

 very common insect, very destructive to wooden posts and rails.] 



We terminate this tribe by insects which, in respect to the palpi, the form of the head, thorax, ami 

 elytra, as well as their respective proportions, offer various exceptions or anomalies, commencing with 

 those in which the thorax has a form analogous to that of Certallum. It is of the breadth of the head 

 and of that of the base of the elytra, or scarcely narrower, and either subcylindrical, round, or orbicular, 

 and is broader towards the middle. All the thighs are clavate, and placed upon a suddenly foi 

 slender and elongated pedicle. The elytra in the majority are either very short, or suddenly narrowed 

 at a short distance from the base, and then subulated. Those of the first groups however do not exhibit 

 such diversity in the elytra. 



Obriuut, Meg., has the head rounded, and not prolonged in front into a muzzle ; the palpi with the last joint 

 thickened, and truncate at the tip; antennae shorter than the body, and thorax long and narrow. 



Rhinotragut, Germ., has the head produced into a muzzle ; the thorax suborbicular. They evidently approach 

 the next subgenus. 



NecydalitylAxm., are the only species which have the elytra contracted into a pair of very short scales, or extended 

 to the tip of the abdomen, but narrowed suddenly at a little distance from the base, thus (alone) resembling CEde- 

 mera ; the abdomen is long and narrow, and apparently pedunculated at the base. The species with subulated 

 elytra compose the subgenus Stenopterus, (S. ru/a, Linn.) [a reputed British species.] Those with very short, 

 scalelike elytra form the subgenus Xecydaim proper, or Mulorchus, Fab. Type, N. major, Linn, [a rare British 

 species, figured by Curtis]. 



Certain species, for the most part peculiar to the African islands, New Holland, New Ireland, and 

 New Zealand, anomalous in several respects, and which in a natural order ought probably to be 

 placed between the Lamiariae and Lepturetse, will terminate the division of the Cerambycini. These 

 have the palpi nearly filiform, with the last joint subcylindrical, slightly narrowed towards the base; 

 the thorax mostly smooth, or slightly unequal, without acute tubercles, dilated from the front to the 

 hind part, trape?iform or truncate conical, as in the last tribe of this family ; the abdomen is nearly 

 in form of a reversed triangle in many, and the elytra are truncate. 



Dinlichocera, Kirby, has the male antenna; dilated to the tip, and with furcate joints. [New Holland.] 



Tmttittermu, I.atr., has simple setaceous antennas, longer than the body ; the thorax is lobed behind, proster- 

 nnm prolonged behind, truncate, and received into a notch of the mesothorax. (L'ndescribed species, from New 

 Ireland.) 



Tragocerus, Dej., has not the presternum produced; the antennas filiform, and rather shorter than the body, sub- 

 serrated ; thorax unequal, and elytra oblong. 



Leptocerus, which have not the presternum produced behind ; antennae setaceous, much longer than the body, 

 especially in the males, and the elytra subtriangular. Or. scriptus, Linn. Isle of France. 



The Longicornes of our third tribe, the Lamiaria, are distinguished by having a vertical head ; 

 the palpi filiform or scarcely thickened at the tips, and terminated by a more or less ovoid joint, 

 pointed at the tip. The outer lobe of the maxilla: is slightly narrowed at the tip, and bent over 

 the inner division. The antennae are often setaceous and simple, and the thorax, exclusive of its 

 tubercles or spines, is nearly of equal breadth throughout. Some of the species are apterous, a pecu- 

 liarity which occurs in no other division of this family. 



This tribe is composed of the genera Lamia and Sapcrtla of Fabriciua, and tome of hi* Stt nOCOri 

 Crnimhi/ 1 Umgtmatnu, Linn., neither belongs to this genus nor to Prion us, where it was at first placed, but to a 

 distinct one belonging to the Ijuniarw, namely, 



Aeroetnmt, Illig. [Maeroput, Thunb.), distinguished (rem all other Longicornes by having the thorax furnished 

 on each side with a moveable tubercle, terminated by a point orb) a spine. The bod] ia flattened, the thorax trans- 

 verse, antennae long and slender, the fore-legs longer than the others, and the elytra truncated at the tips and 

 terminated by two spine*, the outer one being the longest; the most remarkable species is the d. longi m a n m t , m 

 which the thighs and tibiae of the fore-legs are very long and slender ; the upper side of the bod] isagreeabli diver- 

 sified with grey, red, and black COlOUn, 



Ail the other Lamiariae compose but a single genus,— 



Lam ia, — 



Which we divide into tWO Sections, those with the sides of the thorax tubercular or spine, i, nn I tbOM in winch 

 it is entire and rylindric. The flrst is again divided into those with ami those without wings. A great number of 



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