1922] NATURAL SCIENCES OF PHILADELPHIA 281 



Type: 9, Obi Island, Moluccas. [Hebard Collection, Type 

 no. 848.] 



Size and form medium for the genus. Fastigium of vertex 

 narrow, appreciably narrower than the proximal antennal joint, 

 surface cephalad concave between the carinate lateral margins; 

 ventrad fusing with frontal fastigium, transverse linear sulcation 

 being indicated only laterad. Face shining, with a few faint 

 impressions. Pronotum with cephalic margin of disk very broad- 

 ly convex, cephalic sulcus very deep, longitudinal sulcus faintly 

 indicated meso-caudad, caudal sulcus weak, lateral lobes with 

 V-sulcus broad and moderately deep; lateral lobes decidedly longer 

 than deep, ventral margin nearly straight, showing faint concavity 

 ventro-cephalic angle broadly rounded, ventro-caudal angle broadly 

 truncate, humeral sinus almost obsolete. Tegmina and wings 

 extending beyond apex of abdomen. Tegmina broadest meso- 

 distad, the sutural margin obliquely convex from that point to the 

 well rounded apex, situated at the costal margin. Wings not well 

 developed, probably incapable of sustained flight. Ovipositor 

 comparatively short, very slender, curved gently and evenly dorsad 

 to the sharp apex. Subgenital plate scoop-shaped, with apex in 

 caudal aspect U-emarginate and dorso-lateral angles thus formed 

 obtuse and rounded. Limbs elongate. Cephalic and median 

 tibiae armed with the usual number of spines, which are very 

 elongate. Caudal femora comparatively slender, ventral margins 

 armed with (five and thirteen) internal and (ten and twelve) 

 external stout spines, which increase in size distad. 



Head vinaceous-rufous; the minute lateral ocellae and large 

 median ocellus light ochraceous-buff, the latter surrounded by a 

 heavy suffusion of blackish brown; margins of antennal scrobes 

 blackish brown; clypeus with buffy medio-longitudinal suture, the 

 lateral portions suffused with mars brown; labrum blackish brown; 

 mandibles vinaceous-rufous, with suffusions of mars brown meso- 

 proximad. Antennae with first joint blackish brown, thence 

 ochraceous-buff with every second or third joint wholly or in part 

 blackish brown, thus showing very numerous, sharply defined but 

 irregularly spaced annuli. Pronotum broadly margined with 

 ochraceous-buff, but with immediate margins blackish brown, a 

 large blackish brown patch covering the greater remaining portion, 

 with an invasion of the marginal ochraceous-tawny cephalad on 

 the disk and ventro-cephalad on the lateral lobes. Tegmina 

 hyaline, showing a very faint tinge of tawny, particularly meso- 

 proximad; veins and veinlets dresden brown, deepening proximad 

 to prouts brown. Wings hyaline, very faintly tinged with brown; 

 veins and veinlets dresden brown, the cross-veinlets slender but 

 conspicuous, though showing no trace of marginal suffusion. 

 Abdomen mikado brown, each tergite heavily marked ventro- 

 laterad with blackish brown, each sternite with a similar dark 

 marking on each side. Ovipositor clay color, shading to cinnamon 



