454 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.42. 



longitudinal shallow sulcus present, a well-marked transverse sulcus 

 present at the cephalic third and subobsolete mesad, caudal third 

 with a fi -shaped area depressed below the level of the median section, 

 a shallow transverse depression is present at the cephalic sixth, oblique 

 paired depressions located meso-laterad and a transverse narrow 

 rounded elevation borders the caudal margin. Tegmina decidedly 

 exceeding the apex of the abdomen, the length slightly greater than 

 three times that of the pronotum, broad, the greatest width contained 

 about three and one-half times in the length of the same, hyaline; 

 costal margin well arcuate proximad and distad, straight for the 

 remainder of its length ; sutural margin for the greater portion of its 

 length subparallel to the straight section of the costal margin; apical 

 margin oblique arcuato-truncate, the immediate apex costal in 

 position and well rounded. Wings about five-sixths the length of the 

 tegmina, the greatest width contained about 

 twice in the length, apex rotundato-rectangulate. 

 Supra-anal plate transverse subtrigonal, the apex 

 rather deeply rotundato-emarginate ; cerci dis- 

 tinctly surpassing the apex of the subgenital 

 plate, depressed, slightly tapering, moniliform; 

 subgenital plate very ample, lateral margins mod- 

 erately converging caudad, apical margin trun- 

 cate, styles short, simple, free. Cephalic coxse 

 FIG. 2.-TAEACH0DES PI- twO'thu-ds thc Icngth of the pronotum, robust, 

 LosiPEs. Ventral VIEW unarmed; cephalic femora hardly shorter than 

 cEPHrLic'iiMrTx'iI.') ^^^^ pronotum, compressed, the dorsal portion 

 strongly so, the greatest depth of the femur con- 

 tained two and one-third times in the length of the same, dorsal 

 margin slightly arcuate proximad, straight distad, external face broad, 

 deplanate, with a median raised distal ridge, ventro-external margin 

 Avith five short teeth, one of which is on the genicular lobe, ventro-inter- 

 nal margin with twelve to thirteen small teeth of two, usually alternat- 

 ing, sizes, discoidal spines four in number, placed well proximad and 

 with the proximal one very small, the others short and robust; cephalic 

 tibise (exclusive of apical claw) equal to slightly more than two-thirds 

 of the femoral length, armed on the external margin with thirteen to 

 fifteen spines, on the internal margin with fourteen spines, both series 

 with the spines gradually increasing in length distad; cephalic tarsi 

 subequal to the tibise in length, compressed, the metatarsi sub- 

 lamellate disto-dorsad. Median and caudal limbs rather short, the 

 former very robust with the femora greatl}^ compressed, the caudal 

 femora equal to about three-fourths of the pronotal length and the 

 median pair slightly shorter than the caudal ones. 



General color buff, much of the dorsum of the pronotum washed with 

 vinaceous-buff ; the dorsal surface of head, pronotum, external face 



