Vol. VII] GIFFARD— CALIFORNIA HEMIPTERA 275 



much shorter behind the eyes, the second antennal segment is 

 more deeply infuscated, not the first, and the membranal 

 veins are pale. In the present species these black membranal 

 veins and the black basal segment of the antennae are charac- 

 teristic. 



Holotype (No. 345), male, from Laurel Dell, in collection 

 of the California Academy of Sciences. 



Allotype, female, from Muir Woods, in collection of Mr. 

 Gififard. 



Paratypes in both collections and in that of the author. 



143. Orthotyhis fcrox Van D. Santa Cruz Co., June 7, 

 1917; Monterey Co., June 10, 1917. 



144. Orthotyhis viridicatiis Uhl. Yosemite, June, 1916. 



145. Orthotyhis coagulatus (Uhl.) Niles Canyon, May, 

 1916; near Stockton, May 31, 1917. 



146. Orthotyhis chlorionis (Say). Fallen Leaf Lake. Au- 

 gust 21, 1916; Placer Co., August 24, 1916. 



147. Orthotyhis transhiccns Tckr. Fallen Leaf Lake. Au- 

 gust 21, 1916;"Tallac, August 22, 1916. 



148. Orthotyhis afHnis Van D. Crystal Springs, San Mateo 

 Co., June 25, 1916; Placer Co., 6000 feet, August 22, 1916. 



149. Orthotyhis pullatus Van D. Crystal Springs, San 

 Mateo Co., June 25. 1916; Niles Canyon. May. 1916. 



150. Mecomma antennata, new species 



Very near gilvipcs Stal. Antennae black, excepting the base of the 

 third segment ; brachypterous elytra of the female testaceous. Length, 

 male 4^^ mm. to tip of the elytra, female 3^ mm. to tip of abdomen. 



Body black, polished. Vertex with a round castaneous spot against 

 each eye. Antennas black : male, second segment as long as from the tip 

 of the head to apex of the scutellum, linear, densely clothed with soft 

 appressed hairs ; third nearly as long as the second and similarly clothed, 

 its base narrowly castaneous ; fourth little shorter than the first. In the 

 female the second segment is considerably shorter than in the male and 

 strongly clavate, and the third is more broadly pale at base. Sides of the 

 pronotum concavely arcuated in the macropterous male, nearly rectilinear 

 in the brachypterous female. Elytra whitish-testaceous, much exceeding 

 the abdomen in the male and marked with a broad but vague fuscous cloud 

 along the commissure; the apical margin of the cuneus touched with 

 fuscous. Membrane faintly enfumed, with fuscous nervures. In the 

 female the elytra are broad-ovate, reaching the middle of the tergum and 

 testaceous-white in color. Legs pale fulvous with the tarsi dusky, black 

 at apex. 



Described from one pair taken by Mr. Giffard in San 



Mateo Co., June 20, 1916. on the La Honda Road west of 



