260 PROCEEDINGS OF THE ACADEMY OF [Vol. LXXIV 



truncate apex, bearing small styles at the latero-caudal angles, 

 each slightly over three times as long as its basal width, directed 

 ventrad and curved weakly cephalad. Cephalic coxae unarmed. 

 Genicular lobes of femora bluntly rounded. Cephalic tibiae with 

 four pairs of spines and a distal pair of very small spines, the 

 longest spine nearly three times the tibial width at that point. 

 Median tibiae as described here for X. dicera, except that the 

 proximo -external spine is absent on both and the penultimate- 

 internal spine is absent on one of these. Caudal tibiae armed as 

 characteristic of this and the genus Alloteratura. 



Allotype: 9 ; Butuan, Mindanao, Philippine Islands. (From 

 C. F. Baker.) [Hebard Collection.] 



Agrees closely with male, differing as follows. Pronotum less 

 strongly produced caudad, metazona two-thirds as long as prozona. 

 Supra-anal plate much as here described for dicera, but with apex 

 less broadly rounded. Cerci cylindrical, widest meso-proximad, 

 thence tapering to the elongate, slender apices, slightly incurved 

 and slightly over four times as long as greatest width. Ovipositor 

 elongate, swollen in proximal third, distal portion showing a faint 

 curvature dorsad with margins unarmed; dorsal valves acute at 

 apex, ventral valves with acute apices slightly decurved. Sub- 

 genital plate subquadrate, lateral margins rounding broadly into 

 the transverse distal margin, which in caudal aspect is broadly 

 concave. 



General coloration yellowish buff, the tegmina delicate yellowish 

 green. Antennae with intersection of the joints embrowned, at 

 frequent intervals these markings being much heavier and forming 

 blackish brown annuli. Vertex blackish brown, this paling on the 

 occiput to a chestnut suffusion. Pronotum with a medio-longi- 

 tudinal dark suffusion, chestnut cephalad, zinc orange mesad, then 

 with an elongate triangular area of chestnut caudad, with the 

 narrow, dark, cingulate caudal margin enclosing a small triangular 

 patch of buffy. Tegmina faintly embrowned along sutural margin, 

 but with a regular, longitudinal series of ten conspicuous blackish 

 brown dots nearer this than the costal margin. Limbs immaculate, 

 except that the penultimate joint of the tarsi and the apices of the 

 caudal tibiae are embrowned. 



Length of body cf 13.5, 9 11.8; length of pronotum cf 4, 9 3.7 

 greatest width of pronotum cf 1.7, 9 1.8; length of pronotal lateral 

 lobe d" 2.9, 9 2.7; depth of pronotal lateral lobe cf 1.3, 9 1.3; 

 length of tegmen cf 16.3, 9 16.2; width of tegmen cf 1.9, 9 1.9; 

 length of cephalic femur cf 4.2, 9 — •; length of caudal femur 

 cf 10.7, 9 10.5; length of ovipositor 7 -mm. 



This delicately and beautifully marked insect is known only from 

 the described pair. 



