Vol. VII] GIFFARD— CALIFORNIA HEMIPTERA 269 



Paratypes in the collections of Mr. Giffard and of the 

 author. 



127. Dicyphus elongatus, new species 



Larger and more elongated than agilis, with longer antennae, its basal 

 segment white, black at base. Length S]^ mm.; greatest width across 

 the elytra V/^ mm. 



Head longer than in agilis, the neck behind the eye equal to the length 

 of the eye when viewed from above. Antennas reaching to about the apex 

 of the cuneus ; first segment about as long as the space between the eyes ; 

 second as long as the head and pronotum together; third rather longer 

 than the second ; fourth about one-half the third. Pronotum as in agilis, 

 longer with the sides more strongly sinuated than in calif ornicus. Elytra 

 long and narrow, parallel. Basal segment of the rostrum scarcely surpass- 

 ing the hind margin of the eyes, in agilis attaining the base of the head. 



Color black, polished. Head entirely black, the vertex and neck highly 

 polished. Pronotum black, the disk triangularly pale yellowish, this pale 

 mark resting on the hind margin; collumi white. Scutellum opaque black, 

 the basal angles of the basal field often pale as are occasionally those of the 

 apical field. Elytra pale yellowish, becoming whitish along the costa and 

 on the cuneus, the disk with metallic reflections from the iridescent wings 

 Ibeneath ; apical half of the clavus and inner field of the corium infuscated; 

 apex of the corium with a black vitta which does not quite attain the costa. 

 Membrane hyaline with a broad mediam longitudinal fuscous vitta, the 

 nervures heavily fuscous except at apex. Rostrum pale, the basal half of 

 the first segment and the apex black. Legs pale yellowish, the posterior 

 femora and sometimes the anterior and intermediate, with a longitudinal 

 row of fuscous points ; extreme base of the tibice and the apex of the tarsi 

 blackish. Abdomen black in the male, pale yellowish or greenish in the 

 female, becoming black at base and along the sides. Antennae pale testace- 

 ous clothed with a pale pubescence; second segment and base of the third 

 black; first white, black at base. 



Described from one male and six female examples taken 

 by Mr. Gififard in Muir Woods, July 15, 1917. The dorsal 

 fuscous vitta on the elytra is sometimes tinged with red, sug- 

 gesting calif ornicus. The longer head and antennas will dis- 

 tinguish this from both californicus and agilis. The former 

 is a broader insect with the membrane mostly black and the 

 basal segment of the antennae and the base of the second 

 black and the elytra red at apex and along the commissure, 

 while agilis has the basal antennal segment entirely pale, the 

 tip of the corium with a black mark resting on the costa and 

 extending but little along its apex, and the membrane quite 

 uniformly but lightly enfumed with the areoles hyaline. 



Holotype (No. 340), male, in the collection of the Cali- 

 fornia Academy of Sciences. 



Allotype, female, in Mr. Gififard's collection. 



Paratypes in collections of the California Academy of 

 Sciences, of Mr. GifTard and of the author. 



