514 FAMILY XVIII. — PLOIARIHLE. 



base; pronotum with front lobe subquadrate or subglobose, 

 narrower than head across the eyes, either deeply constricted 

 or united to the hind lobe by a slender cylindrical peduncle; 

 hind lobe subcordate, its disk in our species with four tubercles 

 near hind margin, sides declivent, distinctly converging- from 

 the base, the latter broadly emarginate ; meso- and metanota 

 each armed with a short spine on middle of hind margin ; elytra 

 gradually widened from base to apex, the latter with inner 

 margin obliquely concave, the basal discal cell emitting a short 

 branch from the basal third of its coslal margin; front coxae 

 about half the length of femora, the latter but slightly longer 

 than tibiae. Eleven species are known from North and South 

 America, two from our territory. 



KEY TO EASTERN' SPECIES OF STEXOLEMUS. 



a. Prothorax deeply constricted, not pedunculate; spines of front fem- 

 ora very short, the basal one directed straight downward (fig. 

 7) ; meso- and metanotal spines stout, the former strongly inclined 

 backward. 487. longicornis. 



aa. Prothorax strongly pedunculate, the cylindrical peduncle as long as 

 front lobe; spines of front femora longer and more slender, nearly 

 as long as the tibial diameter, the basal one inclined backward; 

 meso- and metanotal spines slender, both suberect. 488. hirtipes. 



487 ( — ). Stenolemus longicornis (Blatchley), 1925, 46. 



Elongate, robust for the family. Head and front lobe of pronotum 

 fuscous-brown, the former with one, the latter with three, pale stripes ; 

 hind lobe of pronotum dull yellow; meso- and metanota dark brown; 

 elytra pale brown, the margins, main nerves and all the nervures pale 

 yellow; under surface piceous-brown, the genital segments paler; an- 

 tennae and legs pale yellow, annulated with pale brown. Hind lobe of 

 head with an obtuse tubercle each side; antennae with joint 2 slightly 

 longer than 1, 3 one-fourth as long as 2, nearly twice as long as 4. Front 

 lobe of pronotum subquadrate, not tapering in front or behind. Ventrals 

 3 — 5 without submedian tubercles. Spines of front femora and tibiae 

 black, short, relatively stout. Genital plate of male small, scoop-shaped. 

 Length, 8 — 11 mm. 



Cape Sable and Key West, Fla., Feb. 23— March 1. Five 

 specimens were taken by beating in dense hammocks along 

 the margins of tidewater lagoons. The Stenolemus p-istinus 

 McAtee & Malloch (1925, 29) is a synonym. 



488 ( — ). Stenolemus hirtipes McAtee & Malloch, 1925, 32. 



Elongate, slender. Above pale clay-yellow; head and pronotum with 

 a brownish tinge; elytra with several of the larger membranous cells in 

 part or wholly brown (fig. 2) ; antennae and legs dull yellow, annulated 

 with pale brown; meso- and metasterna brown; abdomen fuscous-brown, 



