VvoW ,1. ^\'o(Kl-Masoll ('// (I mil- (iiiiiis of y\i\u\'n\-A\ .'{09 



Cfatcd, stroii^-Iy caiiiKiti' or roof-sliapcd al)Ovo, tlic two sides of 

 the disk l)i'in,i^ almost jjlaiic and vciy steep, fovered aljovc and 

 below and on the edi^es with minute shar|) granules, slightly 

 and gradually widening trom the supracuxal dilatation, not 

 only to its base but also to its apex, which is broadly rounded 

 off; supracoxal dilatation large, roiindcd-angulate. Organs of 

 flight well and equally developed in both sexes, but when 

 closed hardly extending beyond the apex of tlie fourth segment 

 of the abdomen; their marginal arete subcoriaceous, opaque; 

 their posterior area3 membranous and hyaline ; tegmina with 

 the basal third of the marginal area rather suddenly dilated 

 and covered with dense, shar])ly defined, and prominent poly- 

 gonal reticulation ; the discoidal nervure of the wings simple. 

 Legs short and stout : the anterior ones a little weaker than 

 the rest ; the coxa; triquetrous, Avith the posterior angle rounded 

 off, and the anterior developed into a slight foliaceous lobe at 

 the apex, as in Danuria ; femur curved, its upper margin 

 being concave, convex both on the inner and on the outer face, 

 but especially on the latter, its lower margin spined along the 

 apical three fourths (five spines set Avide apart on the outer 

 edge and on the inner), and angulated at about the junction of 

 the basal and middle third of its length, the joint gradually 

 increasing in depth, both from the apex and from the base, up 

 to this point ; tibia slender, slightly curved, faintly crested 

 towards the apex along its upper margin, armed with eight 

 or nine spines on the inner edge, the basal half of which is 

 unarmed, and with five on the outer, the apical fifth only of 

 which is armed ; terminal claw acuminate, rather abruptly 

 hooked : four posterior legs strongly cristate and furnished 

 with foliaceous lobes ; femora prismatic, the angles of the 

 the prisms crested, three of the crests (the two lower ones and 

 one of the upper ones) developed into a foliaceous lobe close 

 to the apex, the lateral knee-lobes short and stout, but sharply 

 pointed ; tibiae triquetrous, the angles strongly crested, especi- 

 ally the upper one, which is developed into a foliaceous lobe 

 along its basal half ; femora equal in length to the tibiae in 

 all four posterior legs. Abdomen linear ; the ventral seg- 

 ments all with a short sharp carina, ending in a sharp point 

 at the middle of their hinder margins, and with their surface 

 symmetrically wrinkled, the terminal one extending by about 

 a third of its length beyond the su])raanal plate ; dorsal seg- 

 ments with a raised median line, which is produced to a point 

 at the hinder end of each, and increases in strength to the 

 extremity of the abdomen ; supraanal plate short, twice as 

 broad as long, rounded at the extremity. Cerci broadly folia- 

 ceous, truncate at the apex. 



Ann. l\: Mag. N. Hist. Ser. 4. Vol. xix. 22 



