1922] NATURAL SCIENCES OF PHILADELPHIA 145 



its arms parallel, becoming weakly convergent distad, the cerci 

 are proportionately shorter and do not extend as far caudad as 

 does the subgenital plate, with a small cylindrical projection above 

 their bases and the subgenital plate is straight-produced to the 

 elongate and recurved, divided and internally serrulate distal 

 portion. In other features these species appear to agree very 

 closely, except that in serraticauda the tegmina are slightly wider, 

 with first branch of the median vein forking mesad. 



Though agreeing closely in general appearance with the female, 

 here described as E. makilingae, the present male differs con- 

 spicuously in the pronotal lateral lobes, which are distinctly higher 

 than wide and in the shorter limbs. 



Type: cf 1 ; Puerto Princesa, Palawan, Philippine Islands. (From 

 C. F. Baker.) [Hebard Collection, Type no. 794.] 



Vertex as described for makilingae. Pronotum with lateral lobes 

 distinctly higher than wide. Tegmina with median vein branching 

 at about end of its proximal two-fifths, this branch forking at 

 nearly its median point, these veins running longitudinally and 

 showing very weak obliquity; near its distal extremity the median 

 vein sends another poorly defined branch to the apex. 21 Anal 

 tergite produced mesad in two slender, narrowly separated, pro- 

 cesses which are parallel proximad and converge weakly distad, 

 with delicate, lamellate, rounded apices vertical. Below this 

 tergite and above the cerci is a small projection bearing a small, 

 straight, cylindrical projection, with apex rounded, directed 

 caudad. Cercus cylindrical, tapering, curved evenly inward distad 

 to the acute apex. Subgenital plate trough shaped, straight- 

 produced proximad and narrowly V-emarginate in distal portion 

 of this section, the two distal portions thus formed suddenly and 

 strongly recurved, directed dorso-cephalad, each straight and 

 gradually tapering, with internal margin armed with a regular 

 row of small, stout teeth. Limbs as described for makilingae, 

 except that they are decidedly shorter. Genicular lobes of femora 

 all rounded and unarmed, except the internal of the caudal femora 

 which are unispinose. Ventral femoral margins armed as follows. 

 Cephalic internal 4 and 4, cephalic external 0, median internal 0, 

 median external 2 and 3, caudal internal 2 and 3, caudal external 

 1 and 2. 



The unique type is badly discolored but shows the entire proximal 

 portions of the tegminal stridulating field, to and including the 

 stridulating vein, very dark brown. The other portions were 

 apparently immaculate, light green in life. 



2 * The venation of the sinistral tegmen is distorted in this specimen, the ulnar 

 fusing with the first branch of the median vein, that branch forking twice instead 

 of once, meso-proximad and meso-distad. 



