1922] NATURAL SCIENCES OF PHILADELPHIA 179 



scribed. It shows a closer general resemblance to that insect 

 than to any of the known species of Segestidea. 



Type : 9 ; Obi Island, Moluccas. [Hebard Collection, Type no. 

 810.] 



Size rather large for the genus, form elongate. Vertex narrow, 

 acuminate, produced distinctly beyond plane of face, sulcate almost 

 to apex. Pronotum rugulose, moderately polished but appearing 

 rough to the naked eye; disk with cephalic margin broadly convex 

 and showing no trace of angulation, caudal margin truncate, very 

 broadly convex, transverse sulci decided, a medio-longitudinal 

 line developing into a sulcus between the transverse sulci; lateral 

 lobes longer than deep. Tegmina and wings very elongate; the 

 former narrow, narrowing very slightly to the sharply angulate 

 apex, which is at slightly less than a right angle, formed by the 

 costal margin curving broadly to the sutural margin; median vein 

 with first branch slightly before end of proximal two -thirds and 

 with two distal branches. Ovipositor elongate, slender, unarmed, 

 showing a very faint upward curvature. Subgenital plate broader 

 than long, triangular, lateral margins convergent to the briefly 

 and broadly U-emarginate apex, the lateral portions of whicn are 

 rounded. Femora with genicular lobes unispinose. Thickened 

 portions of caudal femora with low convexities on dorsal surface, 

 these slightly more pronounced than in Segestes frater. Ventral 

 femoral margins armed with small spines, as follows. Cephalic 

 internal c? 4 and 5, 9 5 and 6 ; cephalic external ; median internal 

 0; median external d 1 3 and 3, 9 1 and 4; caudal internal d 1 14 

 and 16, 9 14 and 14; caudal external cf 11 and 12, 9 13 and 14. 

 Cephalic tibiae with auditory foramina apert on internal face, 

 conchate on external face, dorsal surface sulcate, armed with a 

 single small disto-external spine. 



Allotype: d ; same data as type. [Hebard Collection.] 



Agrees closely with female, except as follows. Size smaller, form 

 slightly more slender. Supra-anal plate rotundato-trigonal, as 

 long as wide. Cerci tapering and curving evenly inward and 

 upward to a small apical tooth; a plate beneath on each side bearing 

 a small spine. Subgenital plate elongate, very slender to apex, 

 which is V-emarginate, the lateral portions thus formed with apices 

 surmounted by very small, rounded styles, no longer than wide. 



General coloration clay color. Antennae weakly marbled with 

 cinnamon-buff and isabella color. Tegmina with solid blackish 

 brown flecks in scapular field and between median vein and its 

 branch and proximal portion of ulnar vein. These markings more 

 conspicuous and fewer than in Segestes frater. Femora verona 

 brown heavily overlaid and flecked with cinnamon-buff. Caudal 

 femora proximad, in ventral half of internal surface, heavily suffused 

 with blackish brown; spines tipped with dark brown. Internal 

 genicular areas of caudal femora and immediate base of caudal 

 tibiae dorsad blackish brown. Ovipositor clay color, shading to 



