46 THE CA.NADIA.N ENTOMOLOGIST. 



EUTETTIX PERELEGANTIS, D. sp. 



Form and colour pattern of Mildredce, slightly smaller and darker. 

 Length, 5 mm."; width, 1.5 mm. 



Vertex slightly more angular than in Mildredce, distinctly longer on 

 middle than against eye, transversely depressed ; front narrower than in 

 Mildredce, not rounding in to the clypeus. Pronotum not as convex, the 

 posterior margin scarcely emarginate. 



Colour : vertex pale creamy, six equidistant, pale fulvous spots on 

 margin, basal half sparsely irrorated with pale fulvous. Pronotum dirty 

 white, heavily marked with black behind the eyes ; a broad parellel mar- 

 gined stripe on either side the median line, olive brown. Scutellum 

 brownish fuscous, irrorate with pale, a small spot at apex, a pair of larger 

 quadrangular ones on lateral margins back of the suture, and a minute one 

 at each basal angle, milk white. Elytra, colour and pattern as in Mil- 

 dredce. Face dirty white spots on lorae as in the former species. Below 

 fuscous and pale. 



Genitalia : ultimate ventral segment of the female over twice the 

 length of the penultimate, the posterior margin broadly rounding, the 

 median fourth roundingly emarginate one-fourth the depth, with a stout 

 median tooth often bidentate at the apex ; male valve obtusely triangular, 

 the apex roundingly truncate, trilobate ; plates three times the length of 

 the valve, long triangular, the apex acute, filamentous, margins with silky 

 hairs. 



Described from five females and one male from Salida. Ridgway and 

 Durango, Colo. Readily separated from Mildredce by the colour pattern 

 of the vertex, pronotum and scutellum, and the distinct female segment. 



EUTETTIX SAUCIA, n. Sp. 



Form and general appearance of scaber, smaller and paler, the vertex 

 mostly pale. Length, 4.5 mm. ; width, 1.5 mm. 



Vertex longer, narrower and more angulated than in scaber; face 

 narrower above, longer than its basal width, rounding to the clypeus. 

 The pronotum broadly and evenly rounding in front, truncate behind, 

 almost twice the length of the vertex. 



Colour : vertex pale yellow, six minute points on anterior margin 

 and three irregular irrorate patches on posterior margin brownish fuscous. 

 Pronotum white, coarsely irrorate with dull brown except a narrow lateral 

 margin and traces of three pale lines. Scutellum more finely irrorate, 

 three ivory white points in a triangle beyond the transverse line. Elytra 



