ANTHOCORINA. 37 



sometimes rudimentary, or partially developed ; when perfect, con- 

 sisting of Clavas, Corium, EmhoUmn, Cimeus, and Memhrane. Mem- 

 brane with 1 — 4 nerves arising from the end and long side of a very 

 narrow, triangular, basal cell. Tarsi trimerous. Gen. 1, Tetra- 

 pJileps ; 2, Temiiostethus ; 3, Anthocoris ; 4, Lyctocoris ; 5, Piezo- 

 stethus ; 6, Triphleps ; 7 , Bi'achysteles ; S, Cardiastethus ; d, Xylo- 

 coris. 



Family 3.— ACANTHIID^. 



Head broad, convex ; Face triangular, the lobes not defined, pro- 

 jecting between the antenna? in a broad triangle ; antenniferous pro- 

 cesses stout. Antenna; : the first two joints thick ; third and fourth 

 filiform. Syes large, prominent. Ocelli 0. JRostrum 3-jointed, 

 short, lying in a channel on the under side of the head ; Labrum 

 triangular. Pronotum subreniform, wider than long ; side margins 

 foliaceous, projecting in front as far as the eyes. Scutellum broad, 

 short, triangular. Elytra, with Coriicm only, very broad and short. 

 Sternum ; the middle of the mesosternuni broad and flat. Legs 

 strong. Tarsi trimerous. 



Abdomen broad, oval, wider at the base thau the prouotum ; beneath, 

 in the middle, with a broad flat process, arising on the second segment, 

 extending forwards, and joined to the plate of the mesosteruum. Gen. 1, 

 Acmithia. 



Family 4.— CERATOCOMBID^. 



Antennae flagellate, long-haired ; the first joint very small. Ocelli 

 2. Rostrum 3-jointed. Elytra (when developed) : the Corium 

 without Emholium ; the separation from the Membrane imperceptible ; 

 the nerves forming large cells. Wings often undeveloped ; when 

 present, with a long, narrow cell below the upper marginal nerve. 

 Tarsi trimerous. Gen. 1, Ceratocombus ; 2, Dipsocoris. 



