872 FAMILY XXIX. — MIRID,£. 



antennae pilose, three-fourths the length of body, joint 1 stout- 

 est, usually not reaching tip of tylus, 2 feebly thickened toward 

 apex, 3 and 4 more slender; pronotum with base more than 

 twice as wide as apex, sides feebly sinuate, calli very small, disk 

 behind them strongly convex, coarsely and densely punctate, 

 hind margin with sides rounded, middle sinuate; scutellum 

 small, partly concealed by pronotum, punctate at base, smooth- 

 er toward apex ; elytra entire, impunctate, somewhat scabrous, 

 costal margin feebly broadly curved, cuneus declivent. Six 

 species are known from the eastern states. 



KEY TO EASTERN SPECIES OF SIXEXOTUS. 



a. Femora not wholly black; elytra usually finely and indistinctly pubes- 

 cent. 

 b. Cuneus white, embolium pale yellow; basal joint of antennae slightly 

 longer than width of vertex; length, 2.4 — 2.6 mm. 



960. GRACILIS. 

 bb. Cuneus and embolium black; basal joint of antennae distinctly 

 shorter than width of vertex. 

 c. Antennae and legs wholly milky-white, tarsal claws alone darker. 



961. ALBICORNIS. 

 cc. Antennae in part black or fuscous, sometimes wholly so. 



d. Membrane not abbreviated ; legs dull yellow, more or less tinged 

 with fuscous, middle and hind tibiae with two vague brownish 

 rings. 962. insignis. 



dd. Membrane abbreviated, extending beyond cuneus only for a space 

 equal to its length; legs wholly pale yellow. 963. brevis. 



aa. Femora wholly black, trochanters and tarsi pale; elytra coarsely, dis- 

 tinctly pubescent. 

 e. Basal half or more of scutellum concealed ; pubescence brownish. 



964. TENEBROSUS. 



ee. Scutellum wholly exposed; pubescence whitish. 965. albohirtus. 

 960 (— ). Sixenotus gracilis Blatchley, 1926, 168. 



Oblong-oval. Head, pronotum, scutellum and under surface black, 

 distinctly bronzed; joints 1 and 2 of antennae, embolium and legs yellow; 

 cuneus, membrane and dilated apex of embolium white; veins of mem- 

 brane and joints 3 and 4 of antennae fuscous-brown. Eyes larger and 

 vertex narrower than in the other species. Joint 1 of antennae relatively 

 stout, cylindrical, three-fifths the length of 2; 3 and 4 more slender, sub- 

 equal, each slightly longer than 2. Pronotum with basal lobe narrower, 

 more convex, more finely and densely punctate than in the others, the 

 basal margin broadly rounded or subtruncate. Elytra and ventrals 

 sparsely clothed with minute golden yellow hairs. Length, 2.4 — 2.6 mm. 



Ft. Myers and Hillsboro Canal, Fla., March 4 — 24. The type 

 was sifted from the debris on the mucky bottom of an extinct 



