1917] The Cicadellidce of Wisconsin 87 



Genitalia: Female last ventral segment slightly longer than 

 preceding; almost truncate with median brown spot. Pygofers robust; 

 posterior two thirds with many pale hairs. 



Two females collected at Ladysmith, August 9, 1916. 



2081. D. oculatus 0. & B. — General in northwestern localities. 



2083. D. sylvestris O. & B.— Generally distributed. 



2090. D. osborni VD. — Rather generally distributed in central and 



northern areas. 



2097. D. balli VD.— Madison, July 21, 1916; Amery, Aug. 14, 1916. 



2126. Driotura gammaroides (VD). — One spec, Merrillan, Aug. 3,1916. 



2131. Euscelis exitiosus (Uhl.) — Southern portion of state. 



2132. E. striolus (Fall.)— Generally distributed. 



2133. E. parallelus (VD.) — Generally distributed. 



2134. E. extrusus (VD.)— Lake Geneva, June 21, 1916; Pine Lake, 



July 16, 1916. 

 2138. E. uhleri (Ball)— One spec, St. Croix Falls, Aug. 16, 1916. 



2142. E. arctostaphyli (BaU)— 1 spec, Madison, July 22, 1916. 



2143. E. humidus (Osb.)— In bog at Ladysmith, Aug. 9, 1916. 



2144. E. striatulus (Fall.) — Pembine, Trout Lk., Amery (Aug. and 



Sept., 1916). 



2145. E. vaccini (VD.) — Pembine, Merrillan, Amerv (Aug. and 



Sept., 1916). 



2146. E. instabilis (VD.)— Trout Lake, Aug. 6, 1913; Ladysmith, 

 ■ Aug. 9, 1916. 



Euscelis deceptus n. sp. 



(Figs. 40, 41, 42). 



Coloration and general appearance of D. osborni, but lacking 

 the venation of Deltocephalus and definite markings. Dull 

 testaceous. Length 5.5-6 mm. 



Vertex short and broad, rounding to front, almost twice as long on 

 middle as next the eye ; two and one-half times as broad as long. Width 

 of pronotum more than twice the length; lateral margins distinct, 

 humeral angles broadly rounded to shallow emargination posteriorly. 

 Elytra broad, subhy aline, exceeding the abdomen in length; apices 

 well rounded. Front equal in length and breadth, well rounded to 

 the quadrangular clypeus. 



Color: Vertex testaceous, with an indistinct brown transverse 

 band, sometimes interrupted in middle, on center of disk. Ocelli 

 bright red. Pronotum dull testaceous, with a row of four to six very 

 indistinct spots just behind anterior margin. Scutellum with two 

 discal spots and apical angle brownish. Elytra a dirty yellow, with 

 intermediate brown markings. Venation usually indistinct. Venter 

 pale bordered with brown. Face pale testaceous, several pairs of arcs 

 on front, sutures, and margins of lorae, brown. 



