54 
A.MKIUCAN SPECIES OF ARADUS (iIEMIPTERa) 
is oxcollent in the matter of color but totally lackin'^ in state- 
ments rejj;ar(linj 2 ; the imjioi'tant structural features. 
20. Aradus 'Aradus' basalis sj). nov. (Plate II, fig. 20.) 
Description . — ('.rayisli brown; antennae darker toward ajiex, fir.st segment 
and ai)iees of seeond and lliird narrowly l)ale; eorium almost entirely dull 
yellowish, exeept aiiieal third, elavus i)ale at base; membrane light brown 
with darker shadings, a pale spot just behind soutellum; posterior margins 
of eonnexival segments narrowly dull yellowish; inner margins of genital 
lobes rather broadly pale; rostrum darker toward ai)ex; legs light brown, the 
tibiae pale at apex; ventral surfaee rather dark brown, with indefinite paler 
areas. 
Struetnre similar to that of the preceding, excei)t as follows: Head more 
finely and evenly granulate; impressiems of vertex a little longer, less curved 
and less widely sei)arated; antenniferous spines slightly <livergent, the 
lateral tooth obsolescent; post.ocular tubercles prominent, rounded; antennae 
(fig. 2()c) slightly longer than head and pronotum together (fit) to 6.5). the 
first segment extending beyond middle of tylus, the second as long as or longer 
than width of head including both eyes; rostrum extending but slightly 
beyond ba.se of prosternum. Pronotum (fig. 2()d) very flat, lateral margins 
very little reflexed, curved, with fine irregular dentieulation; lateral carinae 
modcM'ately long. Seutellum longer than pronotum (35 to 27), shorter than 
h('ad (35 to 37), broadly triangular, the sides nearly straight, parallel only 
at extreme b.ase, moderately elevated; discal elevation very slight; ajiex 
narrowly rounded. Ilemielytra similar, but in the female of variable lengtli, 
extending over b.asal one-third of fifth segment, or nearly to ajiex of sixth. 
d' (fig. 2()b). Fifth veidral segment about as long as sixth; genital seg- 
ment short, strongly convex, lobes moderate in length; abdomen eomi)ara- 
tively broadly oval, widest behind middle. Length, 7 to 7.3 mm. 
9 (fig. 2()a). Anterior margin of dor.sal genital segment nearly or (ptite 
straight at middh', rather angulate laterally; ])osterior margin distinctly 
eurv('d, truncate' at middky lobes shorter, as vie'wed from above, than in 
preceding; abdomen broadly oval, more than one-half broader than ])rono- 
tum (!).5-6()). la'iigth, S to S.3 mm. 
/lolotype . — 9; 'P('m))l(', Ntwv II;uu])shire, !!)()() feet, 2(), 
l!)()() ( Ifltuicluird), No. 12034, Mustuiiu of Coiiiptirtilive Zoology, 
( ’;uiil)i'i(lg('. 
Allolj/ix ’. — , Aroiiiif Ktiltihdiu, Maiiu', 0, 1002 (II. (!. 
Ihifher), in iiiy eolk'ct ion. 
Pavdli/pes. — cf, dtifti of allolypt', in Ikirbei-’s collection; (wo 
leintih's, dalti of liolotyiu', in Acadt'iny of Ntilufttl Sciences of 
IMiiladelphia, tind in iny colh'cl ion ; 9, Mount W'tishington, N('w 
I l:inipslni(' (.Mrs. 'F. Slosson), in Mrs. Slosson’s colk'ction ; 
