REHN AND HEBARD 93 



of the pronotum, with length noticeably greater than depth; the 

 tegmina and wings, which are much more attenuate distad; the 

 different disto dorsal abdominal segment and somewhat different 

 cerci and the very different and striking coloration. 



Type. — cf ; Echo Mountain, San Gabriel (Sierra Madre) Range, 

 Los Angeles County, California. In chaparral. August 26, 1909. 

 Elevation 2700 to 3500 feet. (Rehn.) [Hebard Collection.] 



Description of Type. — Size very small for the genus, form attenuate. 

 Head and e3-es much as in elegans. Pronotum with dorsal length about one 

 and six-tenths times greatest (caudal) dorsal width; dorsum of pronotum 

 deplanate; lateral margins of dorsum of pronotum strongly divergent in 

 straight lines for slightly more than cephalic fifth, then with a rounded 

 obtuse-angulation parallel for an equal distance, the remaining portion 

 gently divergent with a slight convexity indicated caudad; cephalic margin 

 of dorsum or pronotum almost straight, very gently arcuate, caudal margin 

 of same strongly arcuate; lateral lobes of pronotum with length greater than 

 depth, the ventro-cephalic angle obtuse and very sharply rounded, the ven- 

 tro-caudal angle broadly rounded as in elegans, humeral sinus distinct, 

 shallow and broadly rounded at an angle of somewhat more than ninety 

 degrees; a peculiar raised callosity occupies the ventro-caudal portion of 

 the lateral lobes extending from about the middle of the ventral margin to 

 the base of the humeral sinus and bounded on the inside by a convex line 

 between these two points. Tegmina much smaller than in elegans and 

 narrowing greatly distad, the distal width considerably less than the mesal 

 width, the tegmina do not reach the distal extremities of the caudal femora 

 and are sharply rounded at the apex; marginal field of tegmina narrowing 

 much as in elegans. Disto-dorsal segment of abdomen with entire dorsal 

 surface showing a considerably depressed area, in cross section the lateral 

 margins of this depressed area are formed by distinct, acute and sharply 

 rounded angles, the margins are straight and convergent cephalad ; supra- 

 anal plate very small, trigonal, with margins convex; cerci medium in 

 length for the genus, very little enlarged at base, very gently tapering and 

 slightly incurved for half their length, then of uniform diameter and almost 

 straight to apex, which is very suddenly and slightly flattened above and 

 armed with a sharp tooth, this tooth directed meso-dorsad at an angle of 

 a little more than ninety degrees to the distal portion of the cercus; sub- 

 genital plate much as in elegans though slightly narrower with the distal 

 extremity between the produced lateral margins rectangular, produced, 

 the sides of the angulation decidedly concave. Limbs and armament of 

 same similar to elegans. 



The female of the present species is unknown. 



In addition to the type a single specimen bearing the same data 

 as the type except that it was taken on September 18, 1910, may be 

 considered paratypic. 



TRANS. AM. ENT. SOC, XL. 



