Vol. VI] VAN DUZEE— SPECIES OF ORTHOTYLUS 93 



wall of the pygofers; sinistral hook long, white and terete, 

 curved around horizontally concentric with the sinistral wall 

 of the genital segment. 



Color a clear bluish-green, becoming yellowish on the head, 

 pronotum and beneath ; clothed above with short, black, decid- 

 uous hairs; antennse pale, the base of the first joint narrowly 

 deep black, the apical joints infuscated. Elytra immaculate, 

 the membrane with pale nervures. Tibiae pale clothed with 

 minute black hairs, the tarsi black. 



Described from one male and two female examples taken 

 by me at the upper end of Fallen Leaf Lake, Calif., July 24, 

 1915. This pretty species is unusually large and slender and in 

 some points is not typical of this genus. 



Type, male, in the collection of the University of Califor- 

 nia. Allotype (No. 301) in the Museum of the California 

 Academy of Sciences. Paratype in collection of the Univer- 

 sity of California. 



2. Orthotylus tibialis, new species. 



Form of Lahopidea nigripes nearly, but much smaller ; blu- 

 ish-green, conspicuously clothed with black deciduous hairs; 

 antennae, tibiae, and tergum black. Length 4-4 J^^ mm. to tip 

 of membrane. 



Head large, vertical ; eyes small, bead-like ; viewed from 

 the side, short, scarcely surpassing the insertion of the an- 

 tennae, narrowed below, little longer than broad. Vertex with 

 a large triangular impressed area; basal carina prominent. 

 Front strongly convex; clypeus small, prominent. Pronotum 

 short, transverse, its length distinctly less than one-half its 

 basal breadth; callosities prominent, elongated. Basal joint of 

 the antennae longer than the head, much thickened almost to 

 the base ; second about three times the length of the first. Ely- 

 tra of the male long, the costa moderately arcuated, the apex of 

 the abdomen reaching to the tip of the corium. Elytra of the 

 female hardly attaining the apex of the abdomen, the costa well 

 arcuated, giving the insect an ovate form, broadest beyond the 

 tip of the clavus, the membrane but little surpassing the tip of 

 the cuneus. 



