74 AMERICAN SPECIES OF ARADUS (iIEMIPTERa) 
reaching apex of inesostenuiin. Pronotum (fig. 374) moderately convex, 
lateral inarg ns minutely and regularly granulate, strong y leflexed, caiinae 
very strongly elevatcci; disc transversely rugulose imsteriorly ; posterior 
lobes strongly dellexed. Scutellum much longer than iironotum (50 to 32), 
elongate, cordate; sides strongly elevated, sinuate, ai)ex lathei bioadK 
romuled: disc very slightly elevated before middle. Hemielytra (d’) broad, 
covering abdomen and extending to ai)ex, corium to base of fifth segment, 
{ 9) narrower, exposing connexivum, extending over genital segment, corium 
to middle of fourth; exocorium moderately expanded, less so in the male; 
entire corium with numerous rather well-ilefined transverse veins. 
cf (fig. 37b). Fifth ventral segment distinctly shorter than sixth; genital 
segment short, strongly convex, carinate, the lobes long; abtlomcn oblong- 
oval, the margins notched. Length, 8 mm. 
9 (fig. 37a). Dorsal genital .segment much as in borealis (cf. fig. 38e); 
abdomen broadly oval, the margins entire anteriorly. Length, 8 to 9.5 mm. 
Typo specimens (Seattle, ashingtoii, and T.”), I nited 
States National Altiseum, Xo. 9868, ami Cornell I niversity 
Collection itaratype Xo. 2o0.1 (Heideniann collection). 
This is a very rare species, confined to the Xorthwest. accord- 
ing to present knowledge; it is distinct in most of its characters. 
The form of the female genital lobes is somewhat variable, tlie 
inner margin being almost evenly rounded in some individuals. 
38. Aradus (Aradus > borealis Heideniann (Plate I\ , fig. 38.) 
1909. Aradus borealis Ileidemann, Proc. Ent. Soc. ashington, xi, p. 190, 
fig. 4. 
Distributiou . — tJeEBEc; Ottawa. M.\ixe; Mount Katahdin, 5215 It., 
\'11I, 19, 1902 (11. G. Barber). New ILvmpshike; Mount Washington. 
Lake of the ('louds, VII, 2, 1890 (F. Blanchard). Michig.w; Marcpictte, 
\H, 20 (Hubbard and Schwarz). S.\skatchew.\x; Saskatchewan River (R. 
Kennicott). ('.vlieohn’i.-v: Mount Tallac, Eldorado C'ounty, 7000 ft., \11, 
0, B>15 (C. W. Woodworth). 
Descriptiou . — Blackish brown; edge of scutellum at ajicx, jiosterior margins 
of connexival segments, and inner margins of genital lobes, dull reddish yellow; 
rostrum and legs rather light reddish brown; ventral surface of abilomcn 
dark reddish brown, with vague darker markings. 
llca<l slightly longer than liroad (32 to 30), slightly longer than ])ronotum 
(32 to 2.S); tylus long, strongly compressed, suddenly enlarged at base; 
imi)ressions of vertex short, broad, divergent anteriorly; i)reocular tubercles 
small, obtuse; antenniferous s])ines very short, conical, moderately divergent, 
I lie* lateral tooth obsolescent; i)ostocular tubercles absent; antennae (fig. 
3.Sc) itioderately thick, slightly shorter than head and pronotum together 
i57 to 00), the first sc'gnumt reaching middle of tylus, length of second some- 
what less than width of head including both eyes (27 to :10); rostrum extend- 
