THE JUMPING TREE BUGS. 657 



cave, hind one feebly sinuate ; mesoscutum widely exposed and 

 marked with a transverse ridge, the suture between it and 

 scutellum conspicuous; scutellum much broader than long, its 

 apical third with a low obtuse median carina ; elytra flattened, 

 surpassing tip of abdomen, costal margin broadly curved, 

 clavus widened apically, commissure as long as mesoscutum 

 and scutellum united, cells of membrane reaching almost to 

 apex (fig. 10) ; hind legs as in fig. 12. Genital cleft of female 

 dividing all except the two basal ventrals (fig. 11) . One species 

 is known. 



633 ( — ). Diphleps unica JSergroth, 1924, 7. 



Broadly oval. Dull grayish-yellow, upper surface except mem- 

 brane sparsely clothed with narrow bristle-like scales; apex of tylus, two 

 spots near inner margin of eyes and mesonotum in great part fuscous; 

 apex of scutellum, several spots on costal margin and a clot on inner 

 margin of cuneus blackish; membrane with numerous small fuscous 

 spots; under surface dull yellow. Joints 1, 3 and 4 of antennae black, 

 basal and apical thirds of 2 yellow, middle third black; 1 and 2 stout, 3 

 and 4 very slender, subequal in length, united less than one-half the 

 length of 2. Length, 2 mm. (PI. VIII, fig. 10). 



Described from Summit Co., Ohio ; known elsewhere only 

 from Urbana, 111., and Glen Echo, Md. Taken in July and 

 August among lichens on the bark of oak and hackberry. 

 Females only are known. 



IV. Teratodia 7 "' Bergroth, 1924, 7. 



Differs from Diphleps by characters given in key and in hav- 

 ing the head narrower, subcylindrically produced beyond the 

 eyes and extending much below the level of the sternum (figs. 

 13 and 14) ; apical margin of pronotum subtruncate, basal mar- 

 gin almost straight in front of mesoscutum, the latter but 

 slightly exposed ; scutellum with a percurrent median carina ; 

 claval commissure shorter, only as long as scutellum. One 

 species is known. 



634 ( — ). Teratodia emoritura Bergroth, 1924, 8. 



Broadly oval. Pale brownish-yellow; pronotum with small vague 

 brownish markings along front and hind margins (fig. 13) ; apex of 

 scutellum and a dot near middle of inner margin of cuneus, blackish; 

 apical half of costal margin with a row of small fuscous spots. Joint 

 1 of antenna? dark brown; 2 as long as half the width of pronotum, pale 



75 McAtee & Malloch (1924, 73) consider Teratodia emoritura to be the male of 

 Diphleps unica, but Bergroth (1925. 163) dissents, stating that there is no such 

 sexual variation of pronotum (as described in key and shown in figs. 10 and 13) 

 in any other Isometopid or Mirid. 



