298 FAMILY IX. — ARADID.E. 



gg. Length of second antennal equal to width of head, including one 

 eye. 

 i. Second antennal less than three times as long- as third. 

 j. Color blackish-brown, with obscure whitish or yellowish mark- 

 ings; front side margins of pronotum with a few coarse 

 teeth; second antennal strongly clavate, as long as width of 

 head, including both eyes. 230. acutus. 



jj. Color black; pronotal margins with numerous fine teeth; sec- 

 ond antennal moderately clavate, shorter. 231. SHERMANI. 

 ii. Second antennal distinctly more than three times the length of 

 third. 

 k. Second antennal gradually enlarged from near base; third an- 

 tennal thicker than second at middle (fig. 33c). 



232. INORNATUS. 



kk. Second antennal cylindrical from base to near middle, strongly 

 enlarged in apical third (fig. 36c). 233. approximatus. 



223 (374). Aradus montanus Bergroth, 1913, 1. 



Oval. Dark brownish-black; antenna? and legs of the same hue. 

 Head as long as broad, slightly longer than pronotum; tylus rather 

 short, stouter toward base; antenniferous spines short, conical, divergent, 

 with a small tooth on outer side. Antenna? as in fig. 5c, moderately 

 robust, shorter than head and pronotum united, joint 1 reaching apical 

 third of tylus, 2 almost as long as width of vertex, two and a half times 

 longer than 1, 3 and 4 united subequal in length to 2, 4 narrower and 

 shorter than 3. Beak reaching between front coxae. Pronotum rather 

 flat, widest at middle, where it is twice as broad as long at middle, side 

 margins irregularly and finely crenulate; disk with sides slightly re- 

 flexed, carina? feebly elevated, median pair percurrent, others shorter. 

 Scutellum one and three-fifth times the length of pronotum, sides straight 

 converging to apical third, thence rounded to apex, basal half with a 

 low median longitudinal carina. Elytra, female, reaching middle of 

 dorsal genital plate; corium moderately dilated and reflexed at base. 

 Abdomen rather broad, oblong-oval, widest at fourth dorsal. Genital 

 segments as in fig. 5. Length, 8 — 8.3 mm. (PI. I, fig. 5). 



Known only from Quebec, Can., and Leadville, Colo. 



224 (373). Aradus debilis Uhler, 1876, 322. 



Elongate-oval. Head, middle of front lobe and margin of hind lobe 

 of pronotum and entire scutellum dark reddish-brown; sides of pro- 

 notum and elytra brownish-yellow mottled with fuscous; connexivum 

 finely mottled, the segments dark at base: membrane whitish, thickly 

 flecked with darker spots ; legs and front portion of beak reddish-brown, 

 apex of tibia? paler; apical third of beak and sterna fuscous-brown; 

 ventrals reddish-brown, finely mottled. Joints 1 and 2 of antenna? red- 

 dish-brown, 1 stout, subcylindrical, not reaching middle of tylus; 2 

 slender, cylindrical, five times as long as 1 ; 3 yellowish, its base darker, 

 about one-third as long as 2; 4 dark brown, subfusiform, pointed, two- 

 thirds the length of 3. Beak reaching behind middle coxa?. Head 



