JAMES A. G. REHN 205 



straight retreating; frontal costa moderately broad, consideralily narrowed at 

 the fastigio-faeial angle, greatest breadth between the antennae, then very 

 faintly narrowing ventrad, carinal margins of the costa almost reaching the 

 clypeal sulcus, sulcus of costa extending from l>etween the antennae ventrad 

 for the full length, deep in the ocellar region, strongly punctate; supplementary 

 facial carinae distinct, straight, moderately divergent ventrad: eyes moderately 

 prominent, in length slightly more than that of the infra-ocular sulcus, in form 

 ovate-reniform; antennae slightly longer than the combined length of the head 

 and pronotum, rather heavy, proximad subdepressed. Pronotum subcylindrical, 

 the greatest (caudal) width of disk contained al)out one and one-half times in 

 the greatest dorsal length of the same; cephalic margin of disk arcuate with a 

 shallow but evident median emargination; caudal margin arcuate obtuse- 

 angulate; lateral shoulder rounded, although sub-evident on the metazona; 

 median carina indicated although not clearly formed, and severed by three 

 transverse sulci; lateral lobes longer than deep, ventral margin sub-truncate 

 caudad, oblique subconcave cephalad, caudo-ventral angle broadly rounded. 

 Tegmina elongate, surpassing the apex of the body by nearly the length of the 

 head and pronotum. and of the caudal femora by almost the pronotal length ; 

 apex well rounded. Prosternal spine erect, subconical, blunted: interspace 

 between the mesosternal lobes slightly longer than broad, slightly broad"- than 

 a single lobe: metasternal lobes contiguous cauflad. Supra-anal plate trigonal, 

 faintly longer than proximal width, apex well rounded, cereal emargination of 

 lateral margins of the plate distinct but not deep, rectangulate; proximal half of 

 plate with a pair of median carinae, a latero-proximal tubercle and one at the 

 cereal emargination, these as well as the paired carinae well elevated and black: 

 cerci of the falcate type usual in the group, rather sharply bent falcate in form, 

 the tip rather blunt, slightly incurved; subgenital plate strongly compressed, 

 subrostrate disto-dorsad although little produced, distal face finely sulcata. 

 Caudal femora about two-thirds as long as the bod}', moderately robust (for 

 the genus), genicular lobes distinctly and sharply acute-angulatc; caudal 

 tibiae with seven spines on the external margin and ten on the internal margin, 

 the distal halt of the tibiae considerably exi)anded and the margins apprecial)ly 

 lamellate, with the fringing brushes of scattered but long hairs; caudal tarsi 

 with the metatarsus and third joint subequal in length. 



Allotype. — 9 ; Same data as type. [Acad. Nat. Sci. Phila.] 

 Differing from the male description as given below. Interocular space 

 slightly wider than the broadest section of the frontal costa; fastigium slightly 

 more than a right angle when seen from the dorsum. Tegmina apparently 

 slightly shorter than in the male (apices broken). Dorsal ovipositor jaws with 

 six teeth on lateral margins. Caudal tibiae with six spines on external margin. 

 General coloration of dorsal surface brussels brown to raw umber, darkening 

 laterad over the dark l)ars until they are sharply seal brown where they meet the 

 straw yellow to light ochraceous-buff of the lower genae, lower lateral lobes and 

 ventral section of j^leura. Venter of body buckthorn brown. Eyes cinnamon- 

 brown; antennae of the dorsal color; face pale dull l)ister to brownish olive. 



TRANS. AM. EXT. SOC, XLIV. 



