94 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



Dextral hook of the male genitaha broad at base, upcurved 

 and attenuated at apex ; sinistral hook short and strap-shaped, 

 lying along the edge of the pygofer. 



Color dull bluish-green, conspicuously clothed with coarse 

 black deciduous hairs. Head and lower surface paler. An- 

 tennae, apex of the rostrum and the tibiae and tarsi deep black ; 

 tergum black, becoming green toward the margin. 



Described from numerous examples taken about the lower 

 end of Fallen Leaf Lake, near Lake Tahoe, Calif., July, 1915. 

 The conspicuously black tibiae and antennae will readily locate 

 this distinct species. 



Type, male, and allotype in collection of the University of 

 California. Paratypes in collections of the Museum of Cali- 

 fornia Academy of Sciences (nos. 302-304), University of 

 California and in author's collection. 



3. Orthotylus ferox, new species. 



Form and size of flavosparsus, nearly; color a pale faded 

 green, clothed with stout black hairs when fresh. Length 

 3^ mm. to tip of membrane. 



Head short, vertical. Eyes small; viewed from the side, 

 vertical, but little longer than wide, narrowed to an angle be- 

 low, not reaching much beyond the middle of the side of the 

 head. Vertex broad, basal impression broad and shallow, the 

 basal carina prominent, obtuse, sinuated. Front prominent, 

 convex, its sutures deep ; facial angle rounded. Antennae short ; 

 first joint shorter than the dorsal aspect of the head. Pro- 

 notum short, transverse, its length about one-half its basal 

 width; sides straight, the angles well rounded; anterior mar- 

 gin concavely sinuated ; callosities prominent. Scutellum small, 

 the basal lobe covered. Elytra moderately broad, the costa 

 feebly arcuated. Abdomen passing the middle of the cuneus in 

 the male, nearly attaining the apex in the female. Tibiae with 

 the longer bristles black. Whole upper surface clothed with 

 coarse appressed black hairs, which are easily rubbed off. 



Male genital characters much like those of tibialis, but the 

 pieces are less curved and less interlocked; the dextral hook 

 narrower and more acute ; the sinistral lying close to the edge 

 of the segment. 



