THE CAXAUIAN KNTUMDUXilST. 



green, the ai)|)endix and apical cells smoky, with the ncrvures liglit. 

 Below smoky. 



Genitalia: Femal: segment slightly longer than its basal widih, 

 roundingly narrowing to half its basal width, then truncate and black- 

 marked, curving around the long pygofers. Male valve short and broad, 

 obtusely augled, plates together, slightly longer than their basal width, 

 narrow and bluntly rounding at the apices, which slightly exceed the 

 narrow pygofcrs. 



Described from twelve examples from Colfax, California, and 

 Medford and Grant's Pass, Oregon, those from the latter place collected 

 by Prof. Titus, the remainder by the author. The black tip of the elytra 

 and the angled vertex will readily separate this from any other described 

 species. Named in honour of Prof E. G. Titus, whose industrious 

 collecting has brought to light many good things. 



Thamnotettix vastu/a, n, sp. 



Resembling Titusi in form and general ap|)earance, slightly shorter 

 and stouter, with distinct genitalia. Length, 5 mm. 



Vertex slightly acutely angled in the female, scarcely wider than long, 

 as long as the pronotum, about right-angled in the male ; disc flat, 

 roundingly angled with the front. F"ront much more strongly retreating 

 than in Titusi, distinctly narrowing below. Elytra broader and shorter 

 than in the former species, and inclined to be appressed posteriorly. 

 Venation simjile. the ai)ical cells not elongated. 



Colour : Vertex pale, clear straw. Face in the female pale, the 

 sutures and front pale, smoky, except for the pale arcs on the latter. In 

 the male the face and venter are deep smoky, with a light spot on the 

 clypeus. Pronotum and sculellum pale green, becoming straw-colour 

 towards the margins, the appendix and apical cells abruptly deep smoky. 



Genitalia : Female segment much narrower than the penultimate, 

 constricted at the base, roundingly narrowing towards the apex, which is 

 narrow, slight'y thickened, and a tritle excavated. The whole segment 

 very much the shape of a blunt-tipi)ed spoon. Male valve as in litusi; 

 plates together, slightly narrowing, and then extending into a long 

 spatulate process between two and three times as long as wide. 



Described from five examples from Chico and Salinas, California, 

 collected by the author. The sharper pointed head and longer genitalia 

 render this species quite distinct, and easily separated from the other 

 members of the group. 



(To be continued.) 



J 



