212 NATURAL ARRANGEMENT OF INSECTS. 



Osmodermn Eremita, which is the largest European in- 

 sect in the group ; and which emits, we are informed, 

 when handled, a powerful scent of Russia leather.* 

 A greatly produced clypeus is not an uncommon cha- 

 racteristic, and is conspicuous in Goliathus, Ischnostoma, 

 Inca, &c. : this is usually a falcated process, with basal 

 ramifications, or it assumes the form of a cross ; it is, 

 however, exclusively restricted to the male insect. The 

 genus Cryptodus, which MacLeay originally placed 

 among the TrogidcB, he has latterly been induced to 

 move into this group, proximate to Cremastocheilus ; the 

 habits of the latter of which, he says, from personal 

 observation on the banks of the Delaware, are to fly, 

 like Cicindrlce, over the sand which there (opposite Phi- 

 ladelphia) lines the bank of that noble river. They are 

 certainly not flower- frequenting insects ; and what they 

 find in the sand to their taste, I do not know.f It thus 

 appears not improbable, from the affinity of Cryptodus 

 with this genus, and from the analogy of the structure 

 of the mouth of Cryptodus to the Trogidce, that the 

 habits of the latter genus may be identical with those of 

 Cremastocheilus. The excessively flattened and broad 

 form of Flatygenia (MacLeay) presents another re- 

 markable aberration from the typical structure of the 

 group, wherein also, we see a curvature of the legs, per- 

 haps only in the male ; and in Campulipus (Kirby) this 

 male characteristic increases so much, that the inter- 

 mediate tibia is bent into an obtuse angle. The other 

 most remarkable genera are Lepitrtjc, for its mimicking 

 resemblance of that section of the gigantic Gotiathi to 

 which the G. giganteus serves as type ; and Anisonyx, 

 for its extreme hairiness, which makes it completely the 

 bear among the Cetoniadce. It is a genus peculiar to the 

 Cape of Good Hope. We have above alluded to the 

 enormous developement of the posterior legs in Pachy- 

 cnemus ; but we may here further remark, that they are, 



^ * A circumstance very unusual in the lamellicom Coleoptera. 



•f- MacLeay's Illustrations of the Zoology of South Africa, " Annulosa." 

 ♦to. Lond. 1838. p. 17. 



