COLEOPTERA. 535 



The tliird tribe, Serropalpides, is distinguished Ijy the maxillary palpi being serrated, very large, and 

 drooping ; the antennae are inserted in a notch of the eye, often short and filiform ; the mandibles are 

 generally bifid at the tip, and the tarsal ungues simple ; the front of the head is not produced, and the hind 

 thighs are not thickened, in which they differ from the following; the penultimate joint of the tarsi, of the 

 four fore-feet at least, is bilohed, and in those in which it is entire, the hind feet are fitted for leaping, 

 being long, compressed, with slender tarsi. This tribe has for its type the genus — ■ 



DiEC/KA, Fabr. 



Or(?/(e.?/rt.,Latr., differs from the rest in havint;: the antennte clavate, the maxillary palpi terminated by a hatcliet- 

 sbaped joint, and the hind feet are formed for leaping;. \_0. mica/is, Latr., a minute British species.] 



Enati-ophtts, Ittig. (with the body ovuid, and the airtenna shorter than the thorax), and 



I-laUometnis, Payk. {with the body elon;j:ate oval, and the antennje ]onj,^er than the tliorax), have the palpi hut 

 slii^htly thickened at the tip. The remainder have the body uan-ow and elon;^^ated, wirU the maxillary palpi hat- 

 chet-shaped, and some of these have the antenn:!: thick and short. 



Birc(va proper {Xylita, Payk.), has the maxillary palpi not serrated, the antenna thick, the body o^al-sliaped, 

 and the scutellum very small. 



Melnndnja, Fahr., with the maxillary palpi evidently serrated, the thorax depressed at the sides, and the 

 scutellum moderate-sizeiL [il/. cciraboides, a common British species.] 



Hi/prdus, Pk., has the body narrow and nearly linear, with the thorax oblongand narrow behind. D. fjueinnug, 

 [a very rare British species]. 



Scrropaljjus, Hellw., has the antennae slender, subcylindric, the body of a firm consistence, and the maxillary 

 jialpi strongly .seri'ated. 



Herropaliim, Gyll., dilTers from the last in having the body soft, the maxillary palpi scarcely serrated, and the 

 penultimate joint of the tarsi bilobed. [Two very rare British species.] 



The fourth trilie, (Edemerites, is nearly allied to the preceding in the insertion of the antennre, bifid 

 mandibles, bilobed penultimate joint of the tarsi, and securiform maxillary palpi ; but (with the excep- 

 tion of Not/ms, which, although nearly allied to some of the preceding, differs in having the hind 

 femora thickened) exhibits a series of characters which does not allow them to be confounded with 

 any other lleteromcra. The body is long, narrow, nearly bnear, with the head and thorax rather nar. 

 rower than the elytra ; the antennse are longer than these parts of the body, serrated in some, but 

 conjposed of long cjdindric joints in the others ; the anterior extremity of the head is more or less 

 produced into a short muzzle, with the eyes more prominent ; the thorax is at least as long as broad, 

 nearly square or cylindrical; the elytra are linear, narrowed behind, and often flexible. These insects 

 are related to the Telephori and Zonites. They are found in flowers or trees ; their metamorphoses 

 are not known. They form a single genus, — 



CEnEMi;R,\, OIiv 



jYof/iMs, Zeiffl. (Os7)/ii/«, Illig ), hasthe antenna: short, simple, and inserted in a notch in the eyes ; the hind thighs 

 thickened in one sex, the thorax as broad as the base of the abdomen, and the tarsal claws bifid. [N. clavipes, a 

 very rare insect, found in Huntingdonshire.] 



RItcfbiis, Fischer, ought probably in a natural system to be placed here. 



Calopus, Fab., has the antenna: very long and serrated, the hind legs simple, with the second joint very short. 

 C. serraticornis, [a common continental species]. 



Sparedrus, IMcgerle, differs from Calopus in having the antenna: simple. 



Di/lit'i.s, Fisch., has the antenna also filiform, inserted in front of the eyes ; the elytra are not narrowed at the 

 tips. It. Iidopioides, [a continental species]. 



(Edemera, Oliv., has the hind legs thickened in one sex, the antenna: long and .slender in one sex, and the 

 elytra very much narrowed at the tips. [(Ed. canilea, a very common British insect. Several of the species 

 have been separated as distinct subgenera by Stephens.] 



The fifth and last tribe of the Stenelytra, that of the Rhijncostoma, is composed of insects some of 

 wdiich are nearly allied to the CEdemerites, whilst the others appear to belong in a natural order 

 to the family of the Weevils {Rhyncophora). The head is evidently prolonged in front, in the shape of 

 a muzzle or flattened rostrum, having the autennffi at its base and in front of the eyes, which are al- 

 ways entire. These insects form a single genus 



IMVCTRRUS, — 



Some of which have the antenna: filiform, and the muzzle not dilated at the tip. 



" Slciwstomn, Latr. (Leptura, Fabr.), has the body narrow, the thorax conical, truncated, the elytra fiexihle, nar- 



rowed to a point. CEd. rostrata, Latr., [South of Europe], 



ilycteru.1, Clairv., has the body ovoid, solid, silky, [with the elytra entire] ; the antenna; appear to be 12-jointed. 

 [J/, griseus, a continental species.] 



