COLliOPTERA. 'i'i'J 



R7iaf!ium,'Dah\. [iindthe tlirpefollowiriir, hnvlii^-\vi)ii:^^s in Ijtitli spxes],lias t!ie anteiinre Bimple, not more tlinn half 

 the lent,fth of the body, and the lust joint of tlie ij;di»i t'onn^ a triaiisulnr inass. The head is lar^^e, nearly squaie, 

 with the eyes entire ; the side^s of the thorax have a trianji;ular tubercle. [2i. hifcucialnin, and two or three other 

 Britisli species.] 



Rhaimiushim, Meg-., has the antenna; rather shorter than the body, serrated, with the third and fourth joints 

 shorter than the following; the eyes are evifk^ntiy eniar,i;-inate. R. Salicis, Fab., [an European species]. 



7'o.r'^/7/i: (and P«c/(.)y^«, Dej.), has the antennae at least as lonj; as the body, simple, with the basal joint mucli 

 sliorter than the head ; the eyes are entire, or very sli{i;htly emarijinate. 



Bunptera, Serv. & Lep., has the antennae 12-jointed. [A Brazilian insect.] 



Disteida and Comcia; Serv. & Lep., have the thorax spined at tlie side, palpi short, antennie villose. The 

 former has the elytra narrowed and terminated by a spine, in the latter they are linear and unarmed. Both are 

 Brazilian. 



Stenoderus, Dej., has the antenna:' long;, the basal joint at least as lon^ as the head, and tlie body lonj^, narrow, 

 and linear ; the eyes are entire. [Exotic insects]. 



In the other species the head is suddenly narrowed immediately behind the eyes ; the antennae, inserted near 

 the anterior extremity of their internal notch, are wide opart at the base ; the two prominences from wdiich they 

 spring are nearly on the same plane ; the thorax is mostly entire at the sides. Tliese form the <fenus — 



Leptura proper, some of which have the thorax conical, as in Lept. annafay Gyll. (L. calcarata. Fab.), [a very 

 common British species, of a black colour, with yellow marks in the elytra], whilst in others the thorax is nearly 

 globular, as in L. iomentosa, [another common Briti^;h species, of smaller size and black colour]. 



THE FIFTH FAMILY OF THE COLEOPTERA TETRAMEKA,— 

 The Eupoda, — 



Is composed of insects, the first of wdiicb (tlie Donocii^) so closely approach the last of the Longicornes, 

 that Linnrous and GeoflVoy united them tngcther, and the last of wliicliare so close to the Chrysoniela?, 

 the types of tlie following family, that the first of these naturalists })lace(l them in tliis genus. The 

 parts of the mouth exhibit the same relations : thus, in the first, the tonguelet is membranous, bifid, 

 or bilobcd, as in the Longicornes ; the maxillfe also greatly resemble theirs ; but in the terminal 

 Eupodic the tonguelet is nearly square or rounded, like that of the Cvclica. The lobes of the maxilla 

 arc however membranous, or hut slightly coriaceous, whitish, or yellowish ; the exterior is dilated at the 

 tip, and has not the appearance of a palpus, which thus more nearly resembles that of the Longicornes 

 than of the Cvclica. The body is more or less oblong, with the head and thorax narrower than the 

 abdomen; the antenna? are filiform, or thickened at the tips, and are inserted in front of the eyes, 

 which in some are entire, round, and prominent, and in others slightly notched; the hind part of the 

 head enters into the thoracic cavity ; the thorax is cylindrical or transversely square ; the abilomen is 

 larger compared to the other ]»arts of the body, oblong, or in the form of a long triangle ; the joints of 

 tlio tarsi, except the last joint, arc cushioned beneath, and the penultimate joint is biiid or bilobed ; 

 the hind legs are thickcneil in a great number, wlicnce the origin of the family name. All these insects 

 have wings, and fix themselves to the stems or leaves of plants, more especially to the Liliace^e in respect 

 to many of our native species; the larvae of some {Donacia), devour the interior of the stems of water 

 plants, upon which the perfect insect is found ; those of others feed externally, but covered with their 

 own excrements, which forms a kind of mantle, as in the Cassidas. 

 \Ve divide this family into two tribes, [Sagrides and Criocer ides']. 



The first, Sagrides, is composed of the genus — , 



Sagra, — 

 The mandibles of which terminate in an acute point. The tonguelet is deeply bilobed. Some have 

 the palpi filiform, the eyes cmarginate, and the hind thighs very thick, with the tiljia? curved. 



McgalopuSy hd-R the front of tlie head produced into a muzzle ; the mandibles strong; and crossing- each other ; 

 the antennae are thickened at the tips. Handsome Brazilian beetles. See the monos'raphs of Klug-, Mannerheim, 

 [andGistll. 



t^agra, Fabr. [first nnmed Alurnu.-i], is exclusively confined to South Africa, Ceylon, [Java], and Cliina, and 

 has the palpi terminated by an ovoid joint, the antennse nearly filiform, and the four anterior tibire strait^ht ; they 

 are splendidly coloured, being; golden, g-reen, or copper-coloured. 



The others have the palpi thickened at the tips, the eyes entire, and the thighs of nearly equal thickness; the 

 l.)ody is narrow and depressed. 



Orsodachnn, Latr., has tlie antenna; filiform, composed of reversed-conical joints ; the last joint of the palpi alone 

 is rather Iar2;er than the preceding-, and nearly of an ovoid truncate shape. [Several small British species.] 



Psammoecu^i Boudier [Crypta, Kirby], has the antennre composed of short joints, thickeninj^ to the tips, and 



