44 STUDIES IN NORTH AMERICAN MEMBRACID.B 



i. Stictocephala inermis Fabr. PI. i, figs. 9,17. 



This, our largest Stictocephala, is widely distributed in the 

 United States east of the continental divide in Colorado. The 

 face is large and smooth with the surface finely and closely 

 punctured and striate between the ocelli and the eyes; clypeus 

 and lorae short and rounded at apex and very nearly contin- 

 uing the arcuated outline of the cheeks; femora generally black 

 above in eastern specimens but this color is sometimes entirely 

 absent. The last ventral segment of the female is broadly, 

 angularly, but not deeply excavated behind. Length varying 

 from 6)4 to 9 mm. This was redescribed as Membracis goniph- 

 ora by Say. 



2. Stictocephala pacifica n. sp. PI. 1, figs 23,30. 



Allied to inermis but quite distinct in the form of the face and last 

 ventral segment of the female. Pronotum less elevated; metopidium pro- 

 portionately broader; a little convex transversely, its median carina distinct 

 but not prominent; lateral carinate edges diverging to the broadly rounded 

 suprahumeral angles, thence running almost straight and meeting well 

 before the middle; subulate apex as in inermis. Face scarcely punctured; 

 strongly striate across the whole base, its apex roughly corrugated; anterior 

 margins of the cheeks reflexed; tylus large, extending for half its length 

 beyond the cheeks; Last ventral segment of the female long; its margin 

 oblique either side of the abrupt median notch which is rounded at apex 

 and attains two thirds the length of the segment. Color probably green in 

 life, yellowish and mottled in the dead specimen, with scattering pale 

 points; carinse pale; between the humaral angles and anterior carina is a 

 distinct fuscous or ferruginous cloud; elytra hyaline, a little clouded at apex; 

 nervures of the wings blackish, conspicuous through the the closed elytra; 

 disk of the pectus black, the femora and venter a little embrowned. 

 Length 8mm. 



Described from one female example taken at Palo Alto, 

 California, and now in the Cornel University collection. 



3. Stictocephala Wickhami n. sp. PI. 1, figs. 10,16. 



Aspect of inermis but slightly smaller. Metopidium flat, high, and 

 almost entirely vertical, only its apex recurved; sides straight for a space, 

 then curving elliptically to the apex. Pronotum not greatly elevated; 

 dorsal line rectilinear almost to the acute tip which scarcely surpasses the 

 abdomen. Head short, roughly sculptured, but showing a few coarse 

 longitudinal striae on either side at base. Last ventral segment of the female 

 long, distinctly exceeding the apex of the last connexival segment, deeply 

 and obtusely emarginate almost to its base, the sides of the sinus sinuated; 

 plates of the male broad, convex, and polished, and a little exceeding the 

 pygofers. Length 7-8mm. 



