OSBORN AND BALL — STUDIES OF NORTH AMERICAN JASSOIDEA. 53 



as in the preceding species. Length, 9,4-5 ^^-y width, 1.50 mm.; 

 d" smaller. 



Vertex: Width as in constricta, over six times wider than long, pos- 

 terior margin roundingly angular as in Pediopsis, slightly elevated. 

 Face broad and short, genae parallel-margined below eyes one-third 

 the length, then sharply angiilate and straight-margined to the clypeus. 

 Front intermediate in form between inodesta and constricta, broad at 

 base, roundingly narrowing on basal third, abruptly constricted, then 

 slightly, convexly narrowing to the clypeus. Pronotum convex, finely 

 granulose, twice wider than long, humeral margin long, posterior mar- 

 gin truncate. Elytra much longer than in 4-punctata, costal margin 

 less curved, less convex, apical and anteapical cells longer. Second 

 cross nervure not present in any of the specimens in hand. 



Color: Dark fuscous-brown and light-gray in strong contrast. 

 Vertex and face light )eliow, with the round spots on vertex and an- 

 tennal pits black, facial sutures, margins of ocelli, a band on either 

 side of the front and the lower half of clypeus, dark reddish-brown, 

 median line of vertex and one margining either eye light reddish- 

 l)rown. Front, above and outside of dark band, suffused with reddish. 

 Pronotum and scutellum light-yellowish, a jjair of roundingly trian- 

 gular spots near posterior margin of pronotum black, a median line 

 sometmies expanded on posterior margin of pronotum and again near 

 tip of scutellum, an oblique mark on humeral margin of pronotum, 

 a spot on either side of the median line on its anterior part and a 

 spot near the basal angle of scutellum reddish-brown. Eh tra dark 

 smoky-brown with pale nervures and sutural margin m strong contrast. 



Genitalia: ?, ultimate ventral segment very long, posterior part 

 constricted more strongly than in constricta, the division often appear- 

 ing as a fold or "tuck," which is deepest at the margin, growing 

 shallower and curving backwards near the median line, posterior mar- 

 gin strongly concavely produced from the lateral angles, tip of pro- 

 duced part truncate but often angularly elevated, giving the impres- 

 sion of a slight median notch, the produced part being two-thirds of 

 the whole constricted portion, pygofers about three times longer than 

 wide, d^ genitalia similar to those of constricta, the valve shorter and 

 more prominent, the plates broader at the tip and less constricted me- 

 dially. Described from ten examples collected January 12, at Ori- 

 zaba, V. C, Mexico, (Osborn). 



Readily separated from 4'punctata by the length of the elytra and 



L Proc. D, A. N. S., Vol. VII.] 7 [January 4, 1898.] 



