130 FAMILY V. — PENT ATOM ID,E. 



g. Cheeks equalling- or but slightly surpassing tip of tylus; 

 antennae pale throughout; connexivum rather widely ex- 

 posed. 84. SERVUS. 

 ()(). Cheeks distinctly surpassing tylus; last two joints of anten- 

 nae usually blackish; connexivum not at all or very nar- 

 rowly exposed. 85. euschistoides. 

 //. Declivity of pronotum, basal half of scutellum and apical three- 

 fourths of corium almost devoid of punctures; antennae pale 



throughout. 86. SUBIMPUNCTATUS. 



ee. Side margins of pronotum straight or nearly so, their edge 

 white, bordered within by a line of black punctures; hind 

 margin of male genital plate with a large median V-shaped 

 notch and a much smaller one each side; length, 8 — 9.5 mm. 



87. POLITUS. 



dd. Middle of abdomen with one or more (usually a row of 3 or 4) 

 black spots; length, 10 — 12 mm. 88. tristigmus. 



cc. Ends of ventral segments without black spots at front angles ; S2 

 genital segment of male with a large black spot on basal half; 

 antenna? with fifth joint and apical half of fourth black or 

 reddish-fuscous. 89. variolarius. 



bb. Pronotum with a somewhat calloused smooth yellowish irregular 

 transverse line between the humeral angles. 

 h. Larger, length, 10.5 — 12 mm.; upper surface without pale spots; 

 hind margin of male genital plate broadly, shallowly concave 

 or subtruncate. 

 i. Color reddish-brown; elytra without round dark spots; humeral 

 angles acute or ending in a short spine; angles of side mar- 

 gins of ventrals without a small black spot. 90. ictericus. 

 ii. Color fuscous-brown; elytra with numerous widely scattered 

 small round dark spots; humeral angles obtuse, not spinose; 

 front angles of side margins of each ventral with a small 

 black spot. 91. bifibulus. 



hh. Smaller, length not over 9.5 mm.; scutellum and elytra with nu- 

 merous small scattered pale spots; hind margin of male genital 

 plate obtusely rounded, feebly sinuate. 92. crenator. 



ua. Spines of humeral angles directed upward and forward; ventral sur- 

 face strongly convex; membrane with oblong convex black dashes 

 between the veins. 93. crassus. 



84 (118). Euschistus servus (Say), 1831, 4; I, 314. 



Broadly oval, subdepressed above, more convex beneath. Above dull 

 grayish-yellow, thickly marked with medium sized fuscous punctures, 

 these in places aggregated to form indefinite dark markings; narrow edge 

 of side margins of pronotum, basal third of costal margin of elytra and 

 extreme tip of scutellum pale yellow; antennae pale yellow, joints 4 and 5 



■'-I have followed still (1872, 26) and Van Duzee (1904, 44 ) in making the 

 absence of these spots t lie principal character separating variolarius from its allies, as 

 it is difficult to find another which will apply to both sexes. However, Hart 

 (liniT. L'i;4 ; 19111. 191) and McAtee (1919. 16) have called attention to the fact 

 that examples of this species occasionally occur in which these spots are present. 



