ON THE LAMELLICORNES. 529 



by the relative and comparative proportions of the palpi ; 

 also hy the form of the corslet. 



The metamorphoses and habits of the insects of these two 

 genera, are otherwise almost identical. Some species of 

 Trichiii those in which the females have the abdomen ter- 

 minated by a corneous point, always prominent, hollowed 

 into a gutter on its upper face, denticulated upon its edges, 

 and serving as a wimble or augur, are a little different from 

 the others in their manner of life. They are almost always 

 to be found upon the ground. Some are found on the cari- 

 ous trunks of trees, others on roses and various flowers. 

 The colours of Trichius fasciatus vary a little, according 

 to the localities in which this insect is found, and according 

 as the temperature is more or less cold. Thus black predo- 

 minates more on the elytra in the individuals which art 

 peculiar to alpine regions. This is more particularly to be 

 remarked in the species which has been named succhictus. 



Degeer had already separated, into a particular family of 

 his genus scarabaeus, the species with which Fabricius has 

 formed those of Cetonia and trichius. He names them 

 scarahcEi of the Jloivers, and distinguishes them from the 

 others because they have no teeth. This last Avriter associates 

 to the cetonias, many insects which, though tolerably resembling 

 them in other parts, have nevertheless very different masti- 

 cating organs, and approximate in this point of view to melo- 

 lontha, and the scarabaei of the text. They compose, in our 

 author's system, the genus rutela — Olivier, who had very 

 well appreciated this difference, since he forms with these 

 species a peculiar division, still leaves them with thecetonicB, 

 as well as the trichii. M. Lamarck has separated from the 

 cetoniae of Fabricius, under the generic name of Goliath ^ 

 some species in which the hood is deeply divided into two 

 lobes, which imitate the forms of two horns. Of this last- 



VOL. XIV. 2 u 



