SUBFAMILY I. — ARADIN^. 309 



236 (376). Aradus borealis Heidemann, 1909a, 190. 



Elongate-oval. Dull fuscous-brown; head, pronotum, scutellum and 

 connexivals thickly beset with small grayish granules ; tip of scutel- 

 lum and apical angle of each connexival, reddish-yellow; beak and legs 

 brownish-yellow; ventrals reddish-brown with two rows of small round 

 black spots each side. Head slightly longer than wide, tylus stout, 

 strongly compressed; antenniferous tubercles with spines short, conical, 

 acute. Antenna? stout, joint 1 and basal half of 2 pale brown, remainder 

 blackish; 1 very short, reaching only to middle of tylus; 2 gradually, 

 evenly clavate, slightly shorter, than width of head across eyes; 3 two- 

 fifths the length of 2, twice as long as four, the latter fusiform. Beak 

 reaching onto mesosternum. Pronotum nearly twice as wide as long, 

 side margins reflexed, finely crenulate, basal margin broadly concave; 

 disk with six carina?, the two inner ones entire, the outer one each side 

 shorter and curved inward. Scutellum nearly twice as long as wide at 

 base, its margins thickened and reflexed. Elytra with reflexed basal 

 expansion of corium long and rather narrow. Abdomen ovate, widest 

 behind the middle. Genital segments as in fig. 38. Length, 6.5 — 7.8 mm. 



Maine (U. S. Nat. Mus.) . A scarce species of northern dis- 

 tribution, its range extending from Quebec and Maine to Sas- 

 katchewan and California. 



237 (382). Aradus tuberculifer Kirby, 1837, 278. 



Oblong-oval. Dark reddish to blackish-brown; head, pronotum, scu- 

 tellum and apical portion of antenna? often darker; hind margin of each 

 connexival segment narrowly yellow. Head as wide as long; tylus com- 

 pressed, feebly tapering; antenniferous spines stout, acute, divergent; 

 impressions of vertex oval, rather shallow; antenna? as long as head 

 and pronotum, first joint very short, second suddenly clavate at apical 

 third, about two and a fourth times the length of third, the latter 

 one-half longer than fourth; beak reaching onto mesosternum. Pronotum 

 with margins slightly flattened, feebly reflexed, sinuate in front, rounded 

 behind, their edges finely granulate; disk with carina? distinct, the 

 median pair only entire. Scutellum elongate-triangular, sides strongly 

 elevated, sinuate near middle, apex acute. Basal expansion of corium 

 narrow, elongate. Male with fifth ventral shorter than sixth, genital 

 segment large, strongly convex, abdomen narrow, oblong-oval, covered 

 by elytra, which extend beyond its apex; female with abdomen broadly 

 oval, connexivum broadly exposed, elytra reaching apex of dorsal 

 genital, the latter with suture between it and lobes obsolete. Length, 

 6.5—7.3 mm. (PI. Ill, fig. 41). 



Rockaway Beach, L. I., June 26 (Davis). Kirby's type was 

 from Canada, lat. 65°, and its known range is northern, extend- 

 ing from Quebec and Maine west and northwest to Minnesota, 

 Colorado, California, Alberta and Alaska. It was redescribed 

 by Bergroth (1913, 3). The A. caliginosus Walker (1873, 36) 

 is a synonym. 



