OSBORN AND BALL —STUDIES OF NORTH AMERICAN JASSOIDEA. 97 



scutellum chestnut, finely irrorate, two white spots on the scutellum 

 against the ends of the transverse depression and another at tip ; elytra 

 heavily irrorate, almost clouded with dark chestnut, except for the 

 outer margin of the basal part of the clavus the entire basal half of the 

 corium, and an indistinct transverse band just before tip strongest on 

 the costal margin. The basal part of corium is hyaline yellowish, 

 oblique behind, bordered above by a narrow white line on the margin 

 of the clavus and extending forward across the lateral margin of the 

 pronotum to the corner of the eye ; below yellowish. 



Genitalia: ?, ultimate ventral segment moderately long, lateral 

 angles rounding, posterior margin slightly produced and feebly notched 

 in the middle, pygofers much longer than in lurida, obscure yellowish 

 with brown spots: cf, valve rounding, plates triangular, twice the 

 length of the valve, their margins clothed with long hairs. 



Described from three females and one male, collected at Ames, 

 Iowa ; two of them swept from white oak. 



EUTETTIX CINCTA n. Sp. 



Eutetttx jucundus*Y2inD\ize&. Psyche, VI., p. 307, 1890; Osborn, Proc. 

 Iowa Acad. Sci. I. pt. 2, p. 120, 1892. 



Size o( scalier nearly, elytra narrow and vertex pointed. Dull red- 

 dish-brown with an oblique obscure saffron band before the middle of 

 the elytra. Length, 9, 6 mm.; c5^, 5.25 mm.; width, 1.60 mm. 



Vertex strongly rounding, one-third longer on middle than next to 

 eye, disc flat with transverse depressions just behind the rounding 

 margins; face long, more acutely angled than is usual in this genus; 

 front narrow, nearly twice longer than broad, margins straight ; genae 

 parallel-margined below the eyes, distinctly angled. Pronotum short, 

 one-half its length included between the eyes, transversely striated ex- 

 cept for the depressed anterior margin. Elytra rather narrow, com- 

 pressed behind. Venation; veins on clavus approximate before the 

 middle; anteapical cell usually divided, anterior portion small, nearly 

 circular, the posterior portion narrowing behind; apical veins curved, 

 usually another small round cell behind the central anteapical, about 

 five transverse veinlets on the apical half of the costa. 



Color: Vertex and superior third of front, soiled-yellowish, ocelli 

 margined with red, remainder of the front rusty-brown, the rest of face 



*The Jassus jucundus of Uhler listed by VanDuzee as Eutettix jucundus is, as later sug- 

 gested by VanDuzee, a Paravzesus near twiningi, and the species of Eutettix upon which the 

 reference was made has been hitherto undescribed. 



