COLEOPTEKV. 529 



maiidiljles are always horny, often very much porrectcd, largest, and Tory diversified in form in the 

 males. The maxilla; are commonly terminated by a long, narrow, hairy lobe, but in some they are 

 entirely homy, and toothed : the tongnelet consists of two small hairy seta; extending beyond tlie large 

 horny mentum ; the fore-legs are often elongated, with the tibia; externally denticulated ; the tarsi are 

 terminated by two equal and simple claws, with a small appendage between them, terminated by two 

 bristles ; the elytra entirely cover the body. 



We divide tlicm into two sections, the first of which has the antenna; strongly elbowed, naked ; 

 labrura very small, united to the elypcus ; maxilla; terminated by a membranous or coriaceous lol^e, very 

 hairy lilie a pencil, without teeth, or with only one ; the tongnelet either entirely concealed, or incorpo- 

 rated with the mentum, or divided into two narrow, long, hairy lobes : this section forms the genus 



LUCANUS. 



Those which have only three or four Joints in the club of the antenna: form a first division. 

 l^inodendvon, Fab., has a strong; resemblance to Oryctes: the body nearly cylindrical, the mandibles hidden, 

 without teeth, and alike in both sexes ; the head of the males has an erect horn. Scarab<£us ciilindricii.'!,'Lmx\., 

 a common British insect. Those with the body convex, ovoid, and the mandibles elevated vertically, and shorter 

 than the head, form two subgenera, — 



^E-mliis, Fab. (having; the body short and convex, the mandibles ternunated above in a horn, and the maxilla; 

 covered by the mentum, composed of a single European species, ^Ei*. scarabieoidef;, Fabr.), and 



Lnmprima, Latr. [composed of splendid metallic Australian insects, Lt-thrus a:neus, Fabr., &c.], with the body 

 more elongated, the mandibles much longer than the head in the males, and very nmch toothed and haii7 within. 

 Those with the body flatter, especially in the females, the mcsosteruum prolonged and advanced, and head nar- 

 rower than the thorax, are 



lit/ssouolus, Mac Leay, having the mandibles of the males formed as in Laraprima, comprising a single Aus- 

 tralian species, Lucanus nebulosus, Kirby, and 



Pholidotus, Mac Leay {C/mlcimon, Daini.), with the mandibles of the males greatly elongated, narrow, curved, 

 and serrated on the iimer edge. Lamprima Httmbotdtli, Schonh., and a few other beautiful species from South 

 America. 



[The nmsnificent genus Chinsognatliiis, Steph., is closely allied to the last. It is composed of a large and splendid 

 species found in the Island of Chiloe, on the west coast of South America. Another species has been recently dis- 

 covered on the Continent of America.] 

 In the following, the mesosternum is not pointed, and the head is as wide as, or wider than the thorax. 

 iKcawM,! proper, having the eyes not divided by the sides of their head, the hody depressed, and the maxilla; 

 terminated by a very long lobe. 



Lueaiius cervus, Linn., the common Stai-bectle, is one of our largest insects, the males being two inches long, 

 or even longer, with the mandibles very large, curved, and toothed (like stag-horns) •, the females have the head 

 narrower and the jaws smaller; the size of this species and of its horns varies considerably. This insect flies about 

 in the evening in the middle of the summer, [especially round the oaks], upon the wood of which the larva feeds, 

 remaining in that state for several years before undergoing its final transformation. It is supposed that this larva 

 was the Cossus of the Romans, a worm-like animal, wdiich they esteemed as a delicious treat. 

 I unite the Cenic/iiis and Plali/cerm of JIac Leay, to Lucanus. 

 Platijcerus, Latr. [Varciis, Mac Leay], has the eyes entirely divided transversely 

 by the margins of the head; the maxilla: are terminated by a shorter and broader 

 lobe. Lucanus paralldipipedus. Fab. [the small Stag-beetle, commonly found 

 in England]. I also reunite to Platycerus the Nigidius, jEgius, and Figulus of Mac 

 Lea,'. 



Spidestis, Mac Leay, dift'ering from all the preceding in having the club of the 

 antenna; composed of the last seven joints. S. conmtus, Fab. [Xew Holland]. 



[I-Ie.r,ipl,i/llum, Gray, is a Brazilian gentis, closely allied to Sjudesus in the an- 

 tenna:.] 



The Lucanides of our second section have the antennne but slightly 



elbowed andvillose; the labrum always exposed, horny, and transverse ; 



the Diandildes roliust, and very much toothed; without remarkable sexual 



f:;. 7i.-Dorcu!i'«™[idii>ipcdo,. (lisproportious ; maxilla; entirely horny, with at least two strong teeth; 



the touguclet also hornv, and situated in a notch of the mentum, and terminated by tliree points. 



The abdomen is attached by a peduncle, which has the scutellum on its upper part. These insects 



compose the genus 



' Passalus, — 



Which Mac Leay restricts to the species with the club of the antenna; 3-jointed, the maxilla: armed with three 



teeth at the tip and two on the inside. The species with a 5-jointed club to the antenn,», and with only two teeth 



to the maxilla: compose his i?enus Paxillus. He also places in this same family the g-inus Cliiron, which we have 



placed amon-st the coprophagous Lamellicornes. These inserts are «iranser= to Europe and also Africa, bemg 



f ^ MM 



