382 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxn. 



to the Museum by Brunei". Besides the above-mentioned specimens, 

 the National Museum has a single female specimen without locality, 

 also presented l)y Brunei", that is referred here with some doubt. It 

 is somewhat smaller than the adult from Shasta, and the sides of the 

 abdomen are marked with black on the posterior margins, and the 

 last two .segments are wholly black laterally. The abdomen has also 

 a pair of pale narrow subdorsal stripes. The anterior tibia3 arespined 

 above on both margins. The posterior femora are missing. 



IDIOSTATUS FUSCOPUNCTATUS Scudder. 



Cacopteris fuscopunctata Scudder, Proc. Amer. Acad. Arts Sci., XXXV, 1899, 

 pp. 88, 89; Cat. Orth. U. S., 1900, p. 78.— Woodworth, Bull. No. 142, Calif. 

 Exp. Stat., 1902, p. 15.— Kirby, Syn. Cat. Orth., II, 1906, p. 194. 



Cacopteris punduia (error for Juscopunduta) Caudell, Proc. U. S. Nat. Mus., 

 XXVIII, 1905, p. 477. 



Description. — Male, female unknown. Head and pronotum as in 

 sequalJs., the lateral lobes of the hitter scarcely siiuiate liehind. Elytra 

 extending- be3^ond the pronotum a distance equal to about one-half the 



length of the pronotum, the outer apical 

 angles marked by a black spot. Legs mod- 

 erately long, the posterior femora about 

 three times as long as the pronotum, arm^d 

 below with a few small black spuiules on 



57 G8 . ••I'll 



FIGS, (iv, 6.s.-ioic,sTATus FU.COPUKC- ^^^th margius; anterior tibii» armed above 

 TATus. 67, cERcusoFMALE. 68, LAST ou thc outcr margi 11 oiily wl th thrcc spiiics. 



DORSAL ABDOMINAL SEGMENT OF r^ ' ' M 4- +U^ ^ ^-P T 7 , ,,'.'/"« ^ 



Cerci similar to those or I. hennainb (tig. 



MALE. 



67). The last abdominal segment of the 

 male (fig. OS) is very different from that of hennanii., the apical lobes 

 being triangular, sharply pointed, not extending back to the tip of the 

 subgenital plate and separated by a deep rounded incision, in this respect 

 somewhat allied to I. a^qualis. 



Measurements. — Length, pronotum, i.S mm.; posterior femora, l-i; 

 elytra, 2.. 5. 



Type. — ]n the Scudder collection. 



Specimens exmnhied. — The type, a single male from Tehachapi, 

 California, taken by Morse on August 2, and a single immature male 

 specimen in the National Museum taken by Oslar at Nogales, Arizona, 

 on July 13, 1903. 



IDIOSTATUS REHNI, new species. 



Description. — Head moderate, scarcely prominent; vertex broad 

 and moderatelv prominent, one-third, or a little more than one-third, 

 as broad as the interocular space. P]3'es rounded, of moderate size 

 and prominence. Antennal scrobes about one-half as large as the 

 vertex as viewed from in front. Pronotum moderately large and 

 considerably produced posteriorly; lateral lobes well developed. 



