AMERICAN SPECIES OF ARADUS (iIEMIPTERA) 
()() 
1S9S (C. V. I’ijK'r) ; Souttlo. Idaho: Moscow (K. A. Cooley). Montana: Kali- 
sjK'll, VI, i:i to 20 (11. F. Wickham). [Coloh.vdo.] California: Fallen 
Leaf’ Lake, Eldorado County, VII, 17, 191.5 (K. C. Van Dyke); Huntington 
Lake, Fresno ('ounty, 7()()() ft., VII, 12, 1919 (Mrs. E. P. VanDuzee); Lake 
Tahoe, VI, 10, 1S91; Meyers, VH, .5; Monterey; Shasta County, V, 6, lOld 
(F. W. Xunnenmacherj; Sierra Nevada; Truckee, oSOO ft., VIII (H. F. 
WickhamJ. ?Mas.sachusftts: Woburn, IV, 27, 1907 (G. FI Morris). 
Description.— V{i\e brown, with more or less reddish tinge; third antennal 
segment y(>llowish white except at base, fourth and apex of second dark; 
disc of ju-onotum, scutellum, and corium between veins variably darkened, 
the basal expansion of corium pale; membrane dark, more or less distinctly 
macnlated; connexivum finely mottled, the segments dark at base; rostrum 
reddish, brown, darker toward a])ex; legs reddish brown, with fine dark spots 
and sparse |)ale granules, the tibiae pale at apex and sometimes at middle; 
ventral surface reddish brown, finely mottled. 
Head longer than broad (40 to 34), almost as long as pronotum; tylus 
long, moderately bulbous; impressions of vertex deep, slightly curved, 
widely sei)arated, convergent iiosteriorly ; prcocular tubercles large, acute, 
spinose; antenniferous sj)ines rather short, slender, slightly divergent, with 
distinct lateral tooth; iiostocular tubercles prominent, acute; antennae 
(fig. 2t)c) very slender, almost as long as head and pronotum together (8.5 to 
88), the first segment not reaching middle of tylus, the second longer than 
head (49 to 43); rostrum very long, extending to or somewhat beyond an- 
terior margin of metasternum. Pronotum (fig. 2Gd) with lateral margins 
broadly ex])lanate, the teeth large and variable; disc strongly elevated, the 
transverse depression well marked; carinae distinctly elevated, the inter- 
mediate jiaii’ tuberculate anteriorly on summit of anterior (fiscal elevation; 
on the i)ost(M'ior slojie of the latter is a transverse, granulated ridge, inter- 
ru])t('d at middle and curved forward laterally. Scutellum shorter than jiro- 
notum (40 to 4.5), pentagonal, the sides roundedly angulate; apex broadly 
rounded; discal elevation angulate, highest ])osteriorly, continued halfway 
to apex in a sharply slojjing carina; sides parallel and distinctly elevate'd 
toward base, lower toward a])(ix. Hemielytra (cf ) rather broad, covering 
abdominal disc, reaching genital lobes, corium beyond middle of fourth seg- 
iiKud ; ( 9 ) exposing a little of abdominal disc at sides, reaching almost or 
(|uite to middle of sixt h abdominal segment, corium almost or cpiite to ajiex oi 
fourth; basal exjiansion of exocorium moderately elongate; entire corium 
with numerous rather di.stinct transverse ridges. 
cf (fig. 2(ib). l''ifth veidral segment slightly longer than sixth; genital 
segment short, strongly convex; abdonum oval. Length, 9 to 9.7 mm. 
9 (fig. 2t)a). Dorsal genital segment twice as broad as long, its anterior 
margin sharply arcuate at side's, straight across middle; iiosterior margin 
strongly arcuate as a whole, straight for a short distance at middle; abdomen 
()v;d, strongly narrow('d !ind produced posteriorly. Length, 8.4 to 11.4 mm. 
'I’yix* .spociiiH'ii (\';uicoiiv('r Island, Hrilisli ( 'oluniliia) in llin 
1 ’lil(‘i- col loci ion, r nit ('(1 Stale's Nalieinal Muse'inn, Nei. 24077, lootee- 
lypo. 
