Vol. VI] VAN DUZEE— SPECIES OF ORTHOTYLUS 117 



Type, male, and allotype in author's collection. Paratypes 

 in Museum of California Academy of Sciences (Nos. 322, 

 323), collection of the University of California and in author's 

 collection. 



25. Orthotylus cuneatus, new species. 



Very near angulatus bninncus, but larger with longer 

 elytra and darker colors; marked as in angulatus with a pale 

 wedge-shaped area along the claval margin of the corium. 

 Length 5mm. 



Head as in brunneus, the vertex with a deep foveate im- 

 pression before the prominent basal carina. Front feebly con- 

 vex. Clypeus small, prominent. Antennae long; basal joint 

 rather longer than the head ; second longer than the third and 

 fourth together. Pronotum short, the sides very oblique, sin- 

 uated ; humeri subacute, prominent ; the anterior angles 

 rounded; callosities large, prominent. Elytra long, parallel. 



Male genitalia small; dextral hook small, longer than 

 broad ; sinistral a little longer, lying in the sinistral notch, its 

 hind edge rounded. 



Color sooty-black, a little piceous in immature examples, 

 the antennae piceous. Legs dark chestnut, the anterior paler 

 or brownish-testaceous in some individuals ; coxae and base of 

 the femora pale testaceous. Elytra with a large wedge-shaped 

 whitish mark lying against the claval suture; apex of the cor- 

 ium and base of the cuneus covered by a rather large whitish 

 spot. Membrane nearly black, a little clearer toward the apex, 

 the nervures black. 



Described from two males and five females taken by me 

 about the lower end of Fallen Leaf Lake, Calif., in July, 1915. 

 Structurally this species is very near brunneus, but its larger 

 size and stronger coloring, together with the cuneate mark on 

 the base of the corium, will readily distinguish it. 



Type, male, and allotype in collection of University of Cali- 

 fornia. Paratypes in Museum of California Academy of Sci- 

 ences (No. 324), collection of University of California and in 

 author's collection. 



