ANTHOCORINA. 37 



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

 sisting of Clavus, Corium, Embolium, Cuneus, and Membrane. 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- 

 phleps ; 2, Temnostethus ; 3, Anthocoris ; 4, Lyctocoris ; 5, Piezo- 

 stethus ; 6, Triphleps ; 7, Br achy steles ; 8, Cardiastethus ; 9, Xylo- 

 coris. 



FAMILY 3. ACANTHIID^E. 



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

 jecting between the antennae in a broad triangle ; antenniferous pro- 

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

 filiform. Eyes large, prominent. Ocelli 0. Rostrum 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 Corium only, very broad and short. 

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

 strong. Tarsi trimerous. 



Abdomen broad, oval, wider at the base than the pronotum ; beneath, 

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

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

 Acanthia. 



FAMILY 4.~CERATOCOMBID^B. 



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

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

 without Embolium ; 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. 



