420 FAMILY XL — LYG^EID^. 



mi. Width of pronotum just back of front angles less than that across 

 eyes; second and fourth antennals subequal, third shorter; larger 

 5.3 — 6 mm. 369. paludemaris. 



368 (585). Peritrechus fraternus Uhler, 1871, 10'!. 



Oblong-oval. Head, front lobe of pronotum, basal half or more of 

 scutellum and under surface dull black, finely pubescent, the head with 

 a brassy tinge; hind lobe of pronotum, V-shaped mark on scutellum and 

 elytra dull brownish-yellow marked with fuscous punctures; membrane 

 whitish-hyaline, vaguely clouded with fuscous; antenna? dark brown, the 

 incisures paler; femora piceous, shining, knees paler; beak, tibia? and 

 tarsi reddish-brown. Antenna? with first joint short, stout, passing apex 

 of head by half its length; fourth fusiform, but little stouter than third. 

 Pronotum rather sparsely punctate, more coarsely so on pale basal por- 

 tion ; hind angles feebly nodulose above. Other characters as above. 

 Length, 4.3 — 5 mm. 



Vigo and Putnam counties, Ind., scarce, Feb. 4 — July 11. 

 Hibernates beneath chips and dead leaves in dry sandy local- 

 ities, and in summer taken beneath stones and other cover. 

 Ranges from Quebec and New England west to Colorado, Idaho 

 and British Columbia. Recorded also from California and New 

 Mexico, but in the east not taken south of New Jersey. Hus- 

 sey (1922, 10) reports the taking of 30 on August 8 at a 

 lighted sheet in a grassy yard at Devil's Lake, N. Dak. 



369 (586). Peritrechus paludemaris Barber, 1914, 516. 



Elongate-oval, larger than fraternus. Color much as there, the 

 corium and membrane more clouded with fuscous; femora often chestnut- 

 brown with a preapical fuscous ring. Pronotum more convex, sides more 

 strongly converging from base to apex, slightly sinuate near basal third. 

 Front femora usually armed beneath at middle with a short tooth and 

 with a second longer one at apical fourth. Other differences as in key. 

 Length, 5.3 — 6 mm. 



Royal Palm Park, Fla., Dec. 12 (W. S. B.) ; one adult and a 

 nymph from beneath board on margin of everglades. Ever- 

 glade, Fla., July {Davis). A submaritime species, usually in- 

 habiting the edges of the salt marshes from Massachusetts and 

 New York southwest to Florida, the only known specimens 

 from the latter State being those above mentioned. 



IV. PLINTHISUS Fieber, 1861, 46, 177. 



Small oblong species having the head porrect, much narrower 

 than pronotum, immersed in thorax to eyes; pronotum sub- 

 quadrate, rather strongly constricted much behind middle, its 

 front lobe convex, impunctate, side margins carinate ; scutellum 



