SCARABiEIDAE. 133 



A. LAPAROSTICT MeLOLONTIIIDAE. 



Two tribes form in this division, and only differ from the tribes 

 of the preceding sub-family by individual peculiarities of moment, 

 though by no general character. 



Mandibles and labruin prominent ; ventral segments sis, free. 



Glaphyrini. 

 Mandibles and labruin beneath the clypeus ; ventral segments connate. 



Oncerini. 



Tribe I.-GLAPH1ROI. 



Oblong, not convex insects, frequenting flowers, and remarkable 

 for the long hairs of the legs and under surface ; the head and 

 thorax are also usually densely covered with long hair. The 

 elytra are flat, frequently dehiscent, and do not cover the pygi- 

 dium ; the abdominal spiracles are all situated in the connecting 

 membrane ; the fifth ventral joins the propygidium, to form a 

 ring, but is not connate with it, as in the genuine Melolonthidae ; 

 the sixth ventral is somewhat triangular, and unites with the 

 pygidium to form a freely moving conical mass. The epimera 

 of the mesothorax are very large ; the metasternum is short ; the 

 side pieces broad, with the epimera large ; the anterior coxie are 

 large, prominent ; the middle ones transverse, contiguous ; claws 

 long, diverging. Antenna? with 3-jointed club. 



The legs and tarsi of these insects are formed as in other Me- 

 lolonthidae, and the claws of Lichnanthe are slightly toothed at 

 base. 



Lichnanthe is found in the Atlantic States, Dasydera in Cali- 

 fornia; both have 10-jointed antennae. 



Maxillary palpi with the last joint oval, deeply excavated ; labruin slightly 

 emarginate ; claws scarcely toothed, broader at base. Dasydera. 



Maxillary palpi with the last joint cylindrical ; labrum deeply emarginate ; 

 claws with a broad basal tooth. Lichnanthe. 



Tribe II.— OXCERIXI. 



This tribe corresponds with the group Lasiopodes of my sy- 

 nopsis of Melolonthidae.* Its characters are very distinct, as 

 fulluws: — 



* Journ. Acad. Nat. Sci., 2d ser., Ill, 2S2. 



