COLEOPTERA. 547 



CeriaUiim, Dej., has tbe head at least as broad as the thomx, which is cylindrical, or sliglitly dilated in tl.e 

 middle. Type, C. ritjiaille, Fabr. [a Freiicli species]. 



Clylit-'i, Fab., has the head narrower than the thorax, nearly (globular. (Jb/lus (ircuaUtSy [u rare British sijecics, 

 and others]. 



CnU'uiium, has the thorax in like manner broader than the head, flattened, and orbicniar. [CalUd. Bajnlam, a 

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



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

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



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

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

 and is Itroader towards the middle. All the thighs are elavate, and placed upon a suddenly formed 

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

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

 sueh diversity in the elytra. 



Ohrium, Meg., has the head rounded, and not prolonfi;ed in front into a muzzle ; the palpi with the hifst joint 

 thickened, and truncate at the tip; antenna; shorter than the body, and thorax lon^- and narrow. 



l<liinotra()ns, Germ., has the head produced into a muzzle ; the thorax suborbicular, They evidently approach 

 the next sub;;enns. 



At'n/dalis, Linn., 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 CKde- 

 UR'ra ; the abdomen is lon^ and narrow, and apparently pedunculated at the base. The si)ecies with subulated 

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

 scalelike elytra form the subgenus Nccijdalis proper, or Molorchus, Fab. Type, N. major, Linn, [a rare Britisli 

 species, figured by Curtis]. 



Certain species, for the most part pecnliar 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 Lcpturetrc, will terminate the division of the Cerambyeuii. These 

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

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

 hind part, trapcziform 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. 



Distichocera, Kirby, has the male antennas dilated to the tip, and with furcate joints. [New Holland.] 



Tmeaisternus, Latr., has simple setaceous antennse, longer than the body ; the thorax is lobed behind, proster- 

 num prolonL;-ed behind, truncate, and received into a notch of the niesothorax. (Undescribed siiecies, from New 

 Ireland.) 



Tra'/oceni.s, Drj., has not the prosternum produced; the antennae filiform, and rather :;horter than the body, sub- 

 serruti-d ; thorax unequal, and elytra oblonf,^. 



Lepfocenib-, which have not the prosterrmm produced behind ; antenna; setaceous, nmch longer than the body, 

 esiiecially in the males, and the elytra subtrianp^ular. Ccr. scripttis, Linn. Isle of France. 



The Lon"-icornes of our third tribe, the Lamiarice, are distinguished by having a vertical head; 

 the pali)i liliform or :!>carcely tliiekened at t!ie tips, and terminated !)y a more or loss ovuid joint, 

 jjuintcd at the tip. The outer lobe of the maxillse is slightly narrowed at the tip, and bent over 

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

 tubercles or spines, is ne.irly of equal breadth throughout. Some of the species arc apterous, a pecu- 

 liarity which occurs in no other division of this family. 



This tribe is composed of the genera Lamia and Saperda of Fabricius, and some of his Stenocori. 



Cerambyx lonpimanus, Linn., neither belongs to this genus nor to Prionus, where it was at first placed, but to a 

 distinct one belonging to the Lamiarice, namely, 



Aaocinus, IHig. (Macropus, Thunb.), distinguished from all other Longicornes by having the thorax furnished 

 on each side with a moveable tubercle, terminated by a point or by a spine. The body is flattened, the thorax trans- 

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

 terminated by two spines, the outer one being the longest ; the most remarkable species is the A. lon<fimam(.<;, m 

 which the thighs and tibia? of the fore-legs are very long and slendrr; the upper side of the body is agreeablv diver- 

 sified with grey, red, and black colours, 



AU the other Laniiaru'e compose but a single genus,— 



L.\MIA, — 



Which we divide into two sections,— those with the sides of the thorax tubercular or spined, and those in which 

 it is entire andcylindric. The first is again divided into those with and those without wings. A great number of 



