50 AMERICAN SPECIES OF AHADUS (hEMIPTERa) 
This siiocies is readily distiiifi'uislipd from the darker forms of 
proboscideiis and from imsali.^ liy the larger scutellum, and geni- 
talic characters, esiiecially the shape of the dorsal genital seg- 
ment. The ventral valvi's in the allotype are opened, so that 
it is impossible to iiresent a drawing of these parts, but there 
seem to be no strong peculiarities in their structure. 
22. Aradus (Aradusi censors sp. nov. (Plate III, fig. 22.) 
Descriplion.—Civayis^h brown, with slight and obscure darker markings; 
antennae light reddish brown, second and third segments pale at apex, fourth 
darker; i)ronotum .slightly paler across base; ])osterior margins of connexival 
segments and inner margins of genital lobes very obscurely jiale; membrane 
light brown; ventral surface reddish brown. 
Structure as in prohoacidcus excejit as follows: Antenniferous spines shorter, 
conical, slightly divergent; ])ostocular tubercles prominent, rounded. Pro- 
notum (fig. 22(1) with disc more depressed anteriorly; lateral margins with 
teeth smaller and Irroader anteriorly; carinae very feebly elevated; posterior 
margin perfectly straight at middle. Scutellum broader, the sides nearly 
straight, feebly elevated, esjiecially at base; apex broadly rounded. Hemi- 
elytra ( 9 ) liroad, not exi)osing disc of abdomen at sides, extending to middle 
of dorsal genital segment, corium over base of fourth; basal expansi(jn of 
curium long, slightly reflexed; mesocorium with one, endocorium without 
distinct tran.sverse veins; membrane broadly rounded at a])ex. Abdominal 
margin strongly crenate. 
cf. Unknown. 
9 (fig. 22('). Pejsterior margin of dorsal genital segment almost evenly 
arcuate; lob((s prominent, roumh'd; abdomen evenly oval, narrow, om^-fourth 
wider than pronotum (7.') to fiO). Length, 7.0 mm. 
Ilolotype . — 9 ; Alassacliusetts (8. Henshaw), Aluseuiu of Coiu- 
paralive Zoology, No. 12038. 
Thi.s species is related to proboscidcus, having the same lukul 
;ui(l anttumal structurt', but is readily distinguished by color, 
pronotal stvuclnre, longer heinielytra, crenate abdomen, and 
more prominent genittd lo])es. The genital ])lates seem to lie 
similai' in form to tho.si' of allied species and, being o])ened, c:m- 
not ))(' (h'tiwn in a jiosition suit;d)le for (*omiiarison. 
23. Aradus fAradus) persimilis Van I)uz('e (I’late III, fig. 23.) 
initi. Aradus prrsuui.Us Van l)uz(>e, Univ. of Ualif. Pubs., d'ech. Bulls., 
1, p. 232. 
I )islrihuliau . British ( 'oi.umiu.v : 'l\'rrace, \'l to IX (Mrs. W’. \\'. lli|)pis- 
Icyi. \\ asiii.xo'I'on: (tlympia; Paradise' l’arl\, .Mount Uainic'r, tiOOt) ft., 
\ll, ba lo 31, P.IO.^) (10. ('. \'an I)yke). M()N'I’.\n,a : .Vnaconda, \ ni, 24, 
