622 FAMILY XXIV. — ANTHOCORID^. 



leaves, in decaying fleshy fungi, in the heads of flowers and 

 occasionally in the nests of birds and mammals. Some are 

 known to be predaceous, feeding on small, soft-bodied insects, 

 which they find among the anthers of flowers. Fewer than 40 

 species are known from America north of Mexico. These are 

 divided among three subfamilies. The principal literature 

 treating of them is by Reuter, 1871, 1884; Uhler, 1894a, 1894b; 

 Champion, 1900, and Parshley, 1920, 1923. 



KEY TO SUBFAMILIES OP ANTHOCORIN.K. 



(i. Basal margin of pronotum not deeply emarginate; scutellum not 

 transversely sulcate; cell of the inner wings with a hamus. 

 b. Third and fourth joints of antenna? slender, linear and beset with 

 numerous long hairs; hamus with a connecting vein; front femora 

 usually more or less swollen. Subfamily I. LyctocoriNvE, p. 622. 

 bb. Third and fourth joints of antennae short, fusiform, their hairs very 

 short; hamus without a connecting vein; front femora never 

 swollen. Subfamily II. Anthocorin^e, p. 633. 



aa. Basal margin of pronotum deeply emarginate; scutellum transverse- 

 ly sulcate; cell of the wings without a hamus. 



Subfamily III. Dufouriellin^e, p. 639. 



Subfamily I. LYCTOCORIN^E Reuter, 1884, 4. 



To this subfamily, as above separated, belong the majority 

 of our eastern species. They are distributed among four 

 genera, distinguished as follows : 



KEY TO EASTERN GENERA OF LYCTOCORINiE. 



a. Sides of pronotum distinctly margined, the margins reflexed; apex 

 of abdomen without long setae; elytra everywhere thickly punctate. 



I. Lyctocoris, p. 623. 

 aa. Sides of pronotum not or very rarely margined, usually strongly 

 deflexed in front of middle; apex of abdomen bearing several or 

 numerous long setae; elytra at most in part punctate, often wholly 

 smooth. 

 b. Margins of pronotum and elytra in macropterous forms ciliate; 

 elytra and apical half of scutellum opaque, often pilose; beak 

 reaching middle coxae; sides of pronotum not sinuate or emar- 

 ginate; osteolar channel curved backward toward apex of meta- 

 sternal plate. II. Lasiochilus, p. 625. 



bb. Margins of pronotum and elytra not distinctly ciliate; elytra and 

 apical half of scutellum usually shining; osteolar channel curved 

 forward. 

 c. Sides of pronotum deflexed, not margined; transverse impression 

 near front of pronotum very fine, scarcely distinguishable, placed 

 between the deflexed apical angles; front femora more or less 

 swollen; clavus impunctate. III. Xylocoris, p. 627. 



