H. M. I’ARSHLEY 
()3 
Ilolotypc. — 9 ; ^>nlle,io, New Mexico, in my collection. 
Paratijpc. — 9; llitleaway, Oregon, VII, 27, 1913 (W. IN Md- 
nionston), United States National iMuseiim, No. 24075. 
A small ami very rare species, related to cinclkornis, but readily 
distinguished l)y the small antennae, broad scutellum, evenly 
rounded abdominal margins, and genitalic structure. The para- 
type lacks the antennae. 
29. Aradus (Aradus) opertaneus .sp. uov. (Plate III, lig. 21).) 
Dct^cription. — rtiifonn dark brown; a pale mark at ba.se of head; eoriiim 
with very vague i)ale markings; ajiical angles of oonnexival segments indis- 
tinctly yellowish; membrane brown, with pale basal spot ami more or less 
white along the veins. 
Head longer than broad (30 to 27), much longer than i)ronotum (30 to 20); 
tylus rather long, compressed, slightly enlarged at middle; impressions of 
vertex, narrow, deej), parallel; iireocular tubercles obtuse, scarcely elevated; 
antenniferous spines moderately slender and divergent, the lateral tooth 
small but distinct; postocular tubercles iirominent, obtu.sely roumled; an- 
tennae (fig. 20c) moderately slender, about as long as head and pronotum 
together, the first segment extending a little beyond middle of tylus, length 
of second eciual to width of head including one eye; rostrum reaching middle 
of ])rosternum, the prosternal ridges strongly elevated. Pronotum (fig. 
20(1) slightly convex, transverse dei)res.sion moderately develo])ed; sides 
■slightly expanded and scarcely refiexed, with moderately coarse teeth; carinae 
rather feebly elevated. Scutellum longer than jironotum (30 to 20), broadly 
triangular; sides and disc very little elevated; ai)ex narrowly rounded. 
Hemielytra( 9 ) strongly narrowed, exposing disc, of abdomen at sides, extend- 
ing at most to base of dorsal genital segment; corium about to apex of third; 
basal expansion of exocorium strong, evenly rounded; mesocorium vith 
one, endocorium without distinct transverse veins. 
cf. Pnknown. 
9 (fig. 29a). Dorsal genital segment about twice as broad as long, jxks- 
terior margin almost straight; lobes evenly rounded, finely denticulate; 
abdomen comparatively large, much broader than i)ronotum (70 to 47), 
elongate oval, rather pointed posteriorly; lateral margins almost entire, the 
notches slight. Length, 6. .5 to 7.1 mm. 
llolotijpe. — 9 ; t'ass County, ^linnesota, \l, 25, 1893 ((). 
Ocstluiul), in niy collection. 
Paratijpes. — Females; same data, in University of Minnesota 
collection and in mine. 
A species intermediate in some respects between the prohos- 
cideiis and similis groups; most closely related to slut ills, from 
which it may be distinguished by the short rostrum, antennal 
and genitalic structure, and general coloration. 
TRANS. AM. ENT. SOC., XLVII. 
