SUBFAMILY I. — PENTATOMINjE. 173 



acters it agrees entirely with PJiamus except for the produced 

 contiguous cheeks, fimbriate margins of pronotum and pro- 

 duced nodular humeri." 



XXIV. DENDROCORIS Bergroth, 1891, 228. 



Small, broadly oval Pentatomids having the head porrect, its 

 apex rounded; cheeks broad, longer than tylus and usually 

 meeting in front of it, their margins sinuate in front of eyes; 

 beak very slender, reaching hind coxae, its second joint longer 

 than third, fourth shortest; antennae slender, the third joint 

 the longest ; pronotum short and wide, its front half moderately 

 declivent, the side margins more or less concave ; humeri 

 prominent, somewhat flattened and projecting, their tips 

 obtusely angled ; scutellum short, broad, the sides sinuate at 

 apical third, the tip rounded ; connexivum widely exposed ; 

 membrane equalling or slightly surpassing tip of abdomen, the 

 veins usually simple ; tibiae sulcate above ; spine at middle of 

 second ventral stout, reaching hind coxae; osteolar canal long, 

 attenuate, reaching beyond middle of metasternal plate. 



Seven species are known, all from the United States, but 

 only two occur in our territory. The generic name in use up 

 to 1891 was Liotropis Uhler (1877, 399). This was shown by 

 Bergroth (loc. cit.) to be preoccupied. In both our eastern 

 species the genital plate of male has a deep, U-shaped emar- 

 gination, the middle of base of which bears an oblong lobe, 

 this also with an acute V-shaped median notch ; while the basal 

 plates of the female genitalia are concealed beneath the sixth 

 ventral. 



m 

 KEY TO EASTERN SPECIES OF DENDROCORIS. 



(i. Head longer than its width across the eyes; second joint of anten- 

 na? only about one-fourth the length of third ; side margins of 

 pronotum strongly concave; spiracles pale. 121. hujvieralis. 



uu. Head wider across the eyes than long; second joint of antenna? three- 

 fourths as long as third ; side margins of pronotum broadly feebly 

 concave; spiracles black. 122. fruticicola. 



121 (194). DENDROCORIS humeralis (Uhler), 1877, 400. 



Broadly oval, subdepressed. Above dull clay-yellow thickly marked 

 with small, deep reddish punctures, the impunctured areas often appear- 

 ing on pronotum and scutellum as small subcalloused pale spots; anten- 

 nae greenish-yellow, the outer joints reddish-fuscous; connexivum orange- 

 yellow with a black point at each incisure; under surface dull yellow 



