a Family of Coleopterous Insects. 
611 
posed this natural resemblance to consist, since I can scarcely 
conceive that these insects are more nearly allied to Clerus than 
they are to Cerocoma. Swederus was equally distant from their 
true affinities, when he considered Cerapterus as intermediate 
between Silpha and Hispa; but the legitimate study of affinities 
was in the days of these authors in its infancy. 
Latreille, in the Histoire Naturelle fyc. vol. xi. p. 206. “ profitant 
de quelques rapports naturels'qu’ont ces insectes avec les Scolites, 
les Bostriches, les Cis,” adds, “ J’avois soupf onne qu’on devoit 
reunir les uns et les autres dans une meme famille. De nouvelles 
considerations ont confirme ce sentiment, et malgre que les or- 
ganes de la manducation des Pausses different de ceux des Sco- 
lites, on voit cependant qu’il y a entre eux une grande affinite.” 
lie accordingly places Paussus immediately between the Cur- 
culionida and the genus Scolytus (a location by no means tena- 
ble), forming the genera Paussus, Scolytus (including the modern 
groups Scolytus, Tomicus, Hylesinus and Hylurgus), Platypus and 
Phloiotribus, into the family Scolitaires ; the genera Bostri- 
chus, Cis and Cerylon, into that of Bostrichini ; and the genera 
Colydium, ISletnosoma, Bitoma, Lyctus, Latridius, Silvanus, Trogo- 
sita, Meryx and Mycetophagus, into the family Xylophagi. In 
the Genera Crustacearum $c. the family Paussili was established 
and placed between the Scolitaires and the Xylophagi ; which 
latter family was made to include the Bostrichini as well as the 
genera of which it was previously composed. In the Considera- 
tiotis GInSrales the Paussidce were properly still further removed 
from the Scolitaires, being placed between the Bostrichini (in- 
cluding both the Scolitaires and the Bostrichini) and the Xylo- 
phagi of the Histoire Naturelle. In the Regne Animal, Families 
Naturelles, and 2nd edition of the Regne Animal, all these genera 
and families are formed into one great family group, under the 
name of Xylophagi, by which Latreille endeavours, but as it 
appears 
