OF THE ANTENN.E. 



157 



universally termed Lamellicorns or Lamellicornes ; this 

 form of antennae is subject to great variation, and the 

 variations afford excellent characters for distinguishing the 

 genera into which the Linnean Scarabtei are now divided: 

 ciliate or fimbriatce (fig. 10), in 

 primitive structure, are setaceous; 

 but each joint is furnished on each 

 side with a single hair : elbowed, 

 kneed, or broken, technically frac- 

 tce (fig. 11), have one joint, usually 

 the second from the base, very long, 

 and the remaining joints attached 

 to it at a right angle : pilose or pi- 

 loste, when covered entirely with 

 a soft down : setose or setosa 

 (fig. 12), when furnished through- 

 out with irregular, harsh, bristly 

 hair: plumose or plumosce (fig. 

 13), when setigerous, but furnish- 

 ed with long downy hairs, which 

 give them the appearance of a 

 feather: ramose or ramosce (fig. 

 14), when of setaceous or monili- 

 form structure, but having seve- 

 ral joints near the base produced 

 into long branches, sometimes near- 

 ly equalling the antenna itself in 



length: bifurcate or bifurcce (fig. 15), when composed of 

 three joints, of which the apical one is very long, bent 

 double, and attached at its centre to the second joint: 

 clavate or clavigercs (fig. 16), when terminating in a gra- 

 dual club, the shaft being generally long, slender, and 

 filiform: capitate or capitata (fig. 17), in which the knob 

 is more abrupt, and strongly marked ; the knob is some- 



