476 INSECTA. 



In the following- subgenus, the body is narrow and almost linear. 

 The thorax forms a long square, narrowed posteriorly. 



Hypulus, Payk. Dir.cxa, Fab. 



The antennae longer than in the preceding subgenus, slightly per- 

 foliate and more separate; the three last joints of the maxillary palpi 

 forming, together, an oval club(l). 



Sometimes the antennae are slender, and composed of elongated 

 and almost cylindrical joints; the body is long and narrow, and the 

 abdomen elongated. 



Serropalpus, Hellw. Payk. Dirceea, Fab. 



Where the body is firm, the maxillary palpi are strongly serrated, 

 the thorax is at least as long as it is wide, and the four posterior 

 tarsi are long; all the joints of the two last are entire or without any 

 apparent incisures(2). 



Conopalpus, Gyll. 



Where the body is soft, the maxillary palpi are but slightly ser- 

 rated, the thorax is transversal, and the tarsi moderately elongated; 

 the penultimate joint of the whole number is bilobate(3). 



The fourth tribe, that of the OEdemerites, is connected 

 with the third by several characters, such as having the an- 

 tennae inserted near the eyes, and their origin exposed, the 

 mandibles bifid at the end, the penultimate joint of the tarsi 

 bilobate, and the maxillary palpi terminated by a larger and 

 securiform joint; but if we except the Nothi, approximated 

 by the form and breadth of the thorax, and by some other 

 characters to certain Heteromera of the preceding tribe, and 

 yet distinguished from them by their strongly inflated poste- 

 rior thighs, and their bicleft tarsial hooks, the CEdemerites 

 present a union of characters which will not allow us to con- 

 found them with the other Heteromera. The body is elon- 

 gated, narrow, almost linear, and the head and thorax are 



(1) Dircxa bifasciata, Gyll., Insect. Suec, I, ii, p. 522; ejusd., D. quercina, lb., 

 p. 523. 



(2) Gyll., Insect. Suec, I, ii, p. 514; Lat., Gener. Crust, et Insect, II, p. 192, 

 and I, ix, 12. 



(3) Gyll., Tb., p. 547; Dejean, Catal, p. 70. 



