28 PROCEEDINGS OF THE ACADEMY OF [Feb., 



cephalic coxae and apparently^' fewer spines on the ventro-internal 

 margin of the cephalic femora. 



Genus monotypic. Genotype. — Sceptuchus simplex, here de- 

 scribed. 



Generic Description. — Size small, normal for the Nanomantes; 

 form slender. Head decidedly transverse; facial scutellum very 

 strongly transverse; occiput quadrisulcate, these sulci broad and 

 shallow, the dorsal outline of the sections thus formed transverse, 

 the juxta-ocular sections showing a very broad and feeble con- 

 vexity. Ocelli moderately well developed, the dorsal pair vertical, 

 very elongate oval in form, above which is a transverse and very 

 delicate carina. Pronotum slender, slightly longer than cephalic 

 €Oxa, margins smooth, supra-coxal expansion moderately developed 

 with its margins moderately convex, medio-longitudinal cai-ina 

 distinct on shaft of pronotum, lying in a broad medio-longitudinal 

 depressed area, absent on collar. Tegmina elongate and moderately 

 narrow with apices rather broadly rounded, entirely hyaline, median 

 and discoidal veins connected by an oblique hyaline linear stigma, 

 transverse sigmoid veinlets broken mesad by delicate false veins 

 only in distal portion of tegmina. The wings do not project beyond 

 the tegmina. Supra-anal plate triangularity produced, not as long 

 as proximal width. Cerci simple, cylindrical, tapering to acute 

 apices. Coxa with margins smooth. Cephalic femur slender, with 

 dorsal margin straight, pinched into a moderately decided ridge, 

 unguicular sulcus at end of proximal two -fifths, three discoidal 

 spines, four spines on ventro-external margin and an additional 

 small spine on each genicular lobe, spine formula of ventro-internal 

 margin ilililililiiil. Cephalic tibia with ventro-external margin 

 armed with seven spines, increasing in length distad, of which the 

 first is decidedly the smallest and separated a greater distance 

 from the second than the intervals between the others; ventro- 

 internal margin armed with eleven spines which increase in length 

 distad. Caudal metatarsus extremely elongate and slender, over 

 twice as long as combined length of succeeding tarsal joints. 



Sceptuchus simplex new species. (Plate I, figures 5 and 6.) 



The present species apparently shows nearest affinity to Nano- 

 mantis australis Saussure.^" In addition to the differential features 



^^ Saussure gives for Nanomantis australis, the genotype, seven spines on the 

 ventro-external margin of the cephahc femora in his key. In his supplementary 

 diagnosis, however, he gives seven spines for that margin and ten for the ventro- 

 internal margin, leaving some doubt as to the accuracv of this count. 



2oMelang. Orth., I, pp. 264 and 435, pi. VII, figs. (34. 64a, 64b, (1870 and 

 1871). 



