SUBFAMILY I. — PENTATOMIN^E. 133 



large series from all parts of the United States will show that 

 the two forms are but geographic races of the same species, 

 bearing the same relation to each other as do pyrrhocerus and 

 tristigmus. The" black points on the incisures of the ventral 

 segments are present in all my specimens of euschistoides, 

 though smaller than in servus. Stoner (1920, 81) says they 

 are absent in euschistoides, though in his key he places the 

 species under the division having them present. 



86 ( — ). Euschistus subimpunctatus Malloch, 1919, 191. 



Form of servus but a little smaller. Above dull greenish-yellow, the 

 margins and middle of disk of basal half of pronotum, the margins of 

 middle third of scutellum and the embolium of the elytra thickly marked 

 with rather coarse fuscous punctures ; remainder of upper surface wholly 

 smooth or with a few widely scattered punctures; color otherwise above 

 and beneath almost as in servus, the black points on incisures between 

 the ends of ventral segments a little larger. Tylus just reaching tips of 

 cheeks. Humeral lateral angles produced in the form of a very short 

 acute spine. Structural characters otherwise as in servus. Length, 

 11.5 mm.; width, 7 mm. 



Anna, 111., July 22, 1883. Unique female type in the 

 Urbana collection. Whether this is an "individual freak" of 

 servus or a valid species will not be known unless additional 

 specimens are taken. It certainly differs widely in sculpture 

 of upper surface from any of our other known species. 



87 (124). Euschistus politus Uhler, 1897, 117. 



Oval, depressed, small for the genus. Above dull grayish- or red- 

 dish-yellow, thickly marked with small fuscous punctures ; narrow edge 

 of side margins of pronotum and basal third of costal border of elytra 

 ivory white, the former bordered within, more definitely on apical half, 

 by a line of black punctures; narrow edge of cheeks and their under sur- 

 face blackish; antenna? yellow, the last two joints with apical halves 

 darker; connexivum alternated with fuscous and yellow; membrane dark 

 brown, the tip paler; under surface and legs yellow, the latter with 

 black dots ; incisures at sides of abdomen with a minute black point. 

 Head nearly as wide across the eyes as long, apex broadly rounded; 

 tylus flat, equalling cheeks. Pronotum finely and nearly evenly punc- 

 tate, side margins almost straight, their apical halves finely crenate; 

 humeral angles obtusely rounded. Scutellum somewhat rugose with 

 small vague whitish slightly elevated areas. Elytra finely and evenly 

 punctate. Male genital segment as described in key. Length, 8.2 — 9.5 

 mm. ; width, 5.5 — 6.2 mm. 



Starke and Crawford counties, Ind., June 17 — Aug. 31 (W. 

 S. P.) ; in the former county beaten from hazel along the edges 



