DASCYLLIDAE. 1 7 T 



spur; other spurs obsolete; tarsi 5-jointed, joints 1 — 3 spongy 

 beneath at the apex and slightly lobed, fourth with two long 

 membranous lobes; last joint as long as the three preceding; 

 claws strongly toothed near the apex; onychium none. 



This family contains but the single species, Schizopus Isetus 

 Lee., an iusect found in Arizona, resembling in form a Galleruca; 

 it is of a metallic green color, coarsely punctured with red elytra, 

 and is nearly six-tenths of an inch long. 



•Fam. XXXIX.— DASCYLLIDAE. 



Mentnm quadrate, corneous; ligula large, membranous, 

 frequently divided into narrow lobes; palpi 3-jointed. 



Maxillae exposed at base, with two lobes, variable in form, 

 but not armed with hooks, except in Eucinetus; palpi 4- 

 jointed. 



Antennas distant, inserted immediately in front of the eyes, 

 under a slight ridge, 11-jointed, more or less serrate, rarely 

 pectinate. 



Head sometimes prominent, but usually deflexed, with the 

 epistoma sometimes distinct from the front ; mandibles not 

 prominent. 



Prothorax with the side pieces not separate ; coxal cavities 

 transverse, widely open behind; prosternum sometimes ex- 

 tending behind the coxae, but usually not. 



Mesosternum small, sometimes excavated, sometimes ob- 

 lique and flat, frequently very narrow ; coxal cavities trans- 

 verse, excavated behind; epimera large, attaining the coxae. 



Metasternum moderate, side pieces tolerably wide; epimera 

 usually visible. 



Elytra covering the abdomen ; epipleurae extending to the 

 apex. 



Abdomen with five free segments, the fifth rounded at tip. 



Anterior coxae transverse, frequently prominent; in the 

 first sub-family, with large trochantin, in the second with- 

 out; middle coxae smaller, sub-transverse, rarely with, usu- 

 ally without trochantin; posterior coxae transverse, nearly 

 contiguous, dilated into a plate partly covering the thighs. 



Legs short, tibiae slender, with small, and sometimes obso- 

 lete terminal spurs; tarsi 5-jointed, frequently with mem- 

 branous lobes beneath; claws simple or pectinate; onychium 

 (in some genera) very short, with two terminal bristles, 

 sometimes wanting. 

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