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



Type, male, and allotype in collection of University of 

 California. Paratypes in Museum of California Academy of 

 Sciences (No. 312), collection of the University of California 

 and author's collection. 



15. Orthotylus catulus, new species. 



Form of ovatus, but a little broader; aspect somewhat of 

 Oncotylus pimctipes Reut. ; uniformly pale testaceous-gray or a 

 little brownish. Length 4^ mm. to tip of membrane. 



Head more triangular before and less convex than in 

 ovatus. Vertex flattened, forming a large depressed area, 

 rounded before ; basal carina very obtuse ; front but moderately 

 convex. Clypeus large and prominent, its basal suture some- 

 what above the line of the antennae. Antennae rather short; 

 basal joint obviously shorter than the head when viewed from 

 above, exceeding the clypeus by less than one-third its length; 

 second little thinner than the first. Pronotum less convex than 

 in ovatus, but more so than in the flavosparsus and dorsalis 

 groups ; sides straight ; anterior angles scarcely rounded ; an- 

 terior margin distinctly concavely arcuated; callosities large, 

 not prominent. Elytra broad, the costa rather strongly arcu- 

 ated ; apex of the abdomen reaching the base of the cuneus in 

 the male, rather surpassing its apex in the female. Rostrum 

 long, about attaining the base of the abdomen. 



Male genital pieces very small; dextral hook short, ovate, 

 scarcely longer than broad ; sinistral broad, irregularly triangu- 

 lar, filling the sinistral notch, its broad apex oblique with the 

 angle rounded. 



Color a nearly uniform pale testaceous, having a whitish 

 aspect in life ; the elytra more or less infuscated, the membrane 

 sometimes a little more deeply infuscated with the nervures 

 pale. Pectoral pieces tinged with fulvous. Tips of the tarsi 

 and rostrum black. Upper surface clothed with short fuscous 

 hairs, which are but little darker than the surface of the insect. 

 Antennae scarcely darker at apex. 



Described from numerous examples taken on Gnaphalium 

 uliginosum at Hamburg, N. Y., June 6, 1909, and at Niagara 

 Falls, June 13. The pale testaceous color of this insect gives 

 it the appearance of being immature. 



