RP:VISI0N of tribe ERRHOlNIElSrELLINI — OMAN 169 



Ovipositor sheath extending beyond tip of pygofer; female 

 pygofer with numerous short setae. Male valve small, usually con- 

 cealed ; male plates slender and elongate ; styles small, curved laterad 

 and ventrad distally; male with two pairs of sternal apodemes, 

 arising from the second and third abdominal segments. 



Type of the genus, Errhomenellus friscanus Ball, 1909. No other 

 species belonging to the genus are known. 



FRISCANUS FRISCANUS (Ball) 



Plate 5, Figure 6 



Errhomenellus friscanus Baix, Cau. Eut., vol. 41, p. 1S2. 1909. 

 Memnonia simplex Van Duzee, Proc. California Acad. Sci., vol 7, p. 294, 1917 

 (new synonymy). 



Kather robust leafhoppers without distinctive markings. Length 

 of female 5.75-6 mm, of male 3,75-4.1 mm. 



Female nearly uniformly pale green. Male pale green or powdery 

 green, with fuscous to black markings as follows : A pair of stripes 

 across crown and pronotum, converging and sometimes fused ante- 

 riorly, frequently reduced to two pairs of spots on the crown and 

 two faint, irregular stripes on pronotum; basal triangles on scutel- 

 lum, frequently entirely absent; areas on fore wing, particularly 

 the clavus and apical and costal cells ; portions of dorsum of abdomen 

 and tips of plates; inner surface of fore tibia and distal tarsal seg- 

 ment of jfirst two pairs of legs. Most of these markings are at times 

 indistinct or absent. 



Crown of female 1.6 times as long as pronotum, tliat of male 1.4 

 times as long as pronotum. Posterior margin of seventh sternite of 

 female slightly produced and with a small notch medially. Male 

 plates long and slender, curved upward posteriorly, tapering slightly 

 to rounded tips. 



Male pygofer with a pair of slender, pointed, fingerlike processes 

 arising ventrally and extending dorsad and caudad along posterior 

 margins of pygofer. Aedeagus simple, stout basally, terminal por- 

 tion slender and pointed and directed dorsad. Both pairs of sternal 

 apodemes heavily sclerotized and black, the first pair rather slender, 

 the second pair broad. 



Distrihution. — Originally described from material collected at San 

 Francisco, Calif. All specimens of the rather extensive collection 

 at hand cam.e either from San Francisco or from localities along 

 the coast a short distance south of San Francisco. I have found 

 nymphs and adults abundant on Lupinus arhoreus in June. 



ERRHOMUS, new genus 



Related to Errhomenellus Puton, with which it has been confused, 

 but differing from that genus as fixed by its type, hrachypterus 



