AMKliK’AX SI’KC’IKS OF AUADUS (iIEMII’TERa) 
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51. Aradus (Aradus) snowi Van Duzec (Plate \ I, fifi. 5-1.) 
1020. Anidus stiowi Van Duzee, Proe. California Acad. Sci., (4), ix, p. 830. 
Ditilrihiitioii. — Akizon'a: Chiricaluia Mountains, VI, 0 (IP (1. Hubbard); 
Iluaelmca Mountains, VII, 18, lOOo (II. (i. Barber); Palinerlee; Santa 
Pita Mountains, oOOO to SOOO feet, VI (P. IP Snow). New (Mexico: Alani- 
of>;ordo, V, 2, 1002 (Viercek and Rehn). 
Dc.scriplioit. — Black to dark lirown; expanded pronotal margins and most 
of corial veins a little paler; cells of corium and membrane whitish hyaline, 
the latter with (luadrate brownish spots; third antennal .segment except 
sometimes extreme base, apical half of second, and basal half of fourth, 
yellowish white; ajiical angles of connexival segments with yellowish white 
s])ots, becoming larger ])osteriorly. 
Head about as broad as long, longer than immotum (10 to 15); tylus mod- 
erate in size, somewhat enlarged toward base; imiiressions of vertex broad, 
conlluent, occnjiying most of surface between eyes and emliracing an an- 
terior elevated area; a narrow carina near each eye; jireocular tubercles 
obsole.sceid; antenniforous spines rather short and stout, slightly divergent, 
without lateral tooth; jiost ocular tubercles slight, rounded; antennae (fig. 54c) 
rather stout, much shorter than head and pronotum together (25 to 84), the 
first segment reaching a little beyond middle of tylus, length of second equal 
to distance betw'een eyes; rostrum extending over anterior third of meso- 
sternum. Pronotum (fig. 54d) moderately convex, the lateral margins nar- 
rowly expanded and but little reflexed, minutely granulate, translucent; 
carinae distinct, more or less arcuate. Hcutellum elongate, triangidar, much 
longer than iironotum (20 to 15); sides nearly or ((uite straight, strongly 
elcvatc'd; apex narrowly rounded; disc feebly elevated near base. Hemiely- 
tra (cf ) rc'aching ajiex of abdomen, corium to midille ol filth segment, connex- 
ivum largely coveri'd; ( 9 ) reaching middle of dorsal genital segment, corium 
to middle of fourth, connexivum exposed at sides; exocorium scarcely ex- 
jianded at base; mesocorium and endocorium with several more or less irregu- 
lar transverse veins; veins of membrane mostly simple, the cross-veins ob- 
solesiamt . 
o’ (fig. 54b). Fifth ventral .segment slightly longer than sixth, aiiical 
margin of latter broadly angulate; genital segment rather short, slightly 
convi^x; alxlomen oblong-oval, the lateral margins entire. Length, 8.75 t.) 
1 mm. 
9 (fig. 51a). Po.sterior margin of dor.sal genital segment arcuate as a 
whole, the median (unargination distinct, broader than space lietwecm genital 
lobes, wid(^st anteriorly; abdomen oval, margins entire. Length, 4.5 mm. 
4'yi)(‘ si)('cini(ui (StuiLi Hilti iMoiinttiins, Arizona) in \4in 
I )nz(‘(‘’s colk'ction. 
44iis enrions H])(‘ci(‘s, rtitlau' closely rt'hiltal to fdllcn.i, may 1)(‘ 
rccogniztal inniKMliah'ly By llu' thick, Ll.ack and white tinlennae, 
:is wt'll its hy pronoLil tind gcuiihdic characlers. It was described 
