JAMES A. G. REHN 363 



"dorsum, in size medium, in basal outline rounded subtrigonal: antennae far 

 surpassing the tegminal apices, the proximal joint moderately enlarged, with a 

 decided disto-internal tooth-like projection. 



Pronotum obscurely cribroso-punctate, with the dorsal line nearly straight: 

 ■dorsum with the greatest caudal width contained one and three-fifths times in 

 the greatest dorsal length of the same, transversely the dorsum is convex, 

 rounding into the lateral lobes; cephalic margin of disk truncate; caudal mar- 

 gin of disk truncate, well rounding laterad to the humeral sinus, margins nar- 

 rowly cingulatc; cephalic transverse sulcus distinctly impressed arcuate, sulci 

 caudad of this little indicated on dorsum, a median figure, between a Y and a 

 T in shape, moderately indicated: lateral lobes with their greatest depth, which 

 is at caudal third, contained one and one-third times in the greatest dorsal 

 length of the same; surface of the lobes rather deeply sculptured; cephalic 

 margin of lobes moderately oblique and sinuato-truncate, ventro-cephalic 

 angle broadly rounded; ventral margin oblique, weakly concave, ventro-caudal 

 angle subrectangulate; caudal margin moderately arcuate, the humeral sinus 

 shallow, concave. Tegmina surpassing the apices of the caudal femora by 

 about the length of the caudal femora, elongate, narrowly sublanceolate, in 

 general subequal in width, the greatest width contained nearly seven times in 

 the greatest tegminal length: costal margin nearly straight, distal fourth 

 moderately arcuate to the rather broadly rounded apex; sutural margin nearly 

 straight: marginal field broad proximad, regularly narrowing distad: medias- 

 tine vein distinct, nearly straight, reaching the costal margin near the proxi- 

 mal third, with numerous subparallel rami on costal side; marginal field distad 

 of the mediastine vein with numerous oblique cross- veins; humeral trunk 

 slightly sigmoid; median vein diverging faintly distad of the proximal two- 

 fifths of the tegmen, biramose on the sutural side; ulnar vein sinuate, close to 

 humeral tnmk in proximal third, thence extending sul:>parallel to the sutural 

 margin, with five oblique true rami toward the sutural margin. Wings reach- 

 ing to the tegminal apices. Presternum bis])ino.se; mesosternal lobes in general 

 form rectangulate with the angle produced and spiniform-lobate; metastcrnal 

 lobes distinctly shorter, in general form more rectangulate with the caudal angle 

 subspiniform. 



Disto-dorsal abdominal segment strongly transverse, deeply divided disto- 

 mesad by a V-shaped emargination, the bordering angles being rectangulate 

 and moderately produced, the lateral sections of the distal margin of the seg- 

 ment moderately oblique and shallowly arcuate-emarginate: supra-anal plate 

 small, broad trigonal: cerci relatively short, incrassate, tapering, very slender 

 distad, slightly incurved: ovipositor elongate, very slightly longer than the 

 caudal femora, straight proximad, gcnth' falcate in distal half, the greatest 

 depth contained nearly ten times in the length; apex acute, the dorsal valves 

 faintly longer than the ventral pair, margins entire: subgenital plate .somewhat 

 produced, weakly narrowed distad, the lateral margins (when seen from the 

 side) sinuate oblique declivent to the distal third, thence strongly arcuate- 

 emarginate to the acute, diverging disto-latcral angles, distal margin broadly 

 V-shaped, the arms of this weakly arcuate, in section the plate is subtectate 

 distad, arcuate proximad. 



TRANS. A!VI. ENT. SOC, XLIV. 



