1921] NATURAL SCIENCES OF PHILADELPHIA. 287 



margins of the median and caudal femora supplied with elongate 

 hairs. Four proximal tarsal joints with large pulvilli,"^ that of the 

 metatarsus linear in large portion, running to the base; last (fifth) 

 joint with ventral surface subchitinous in a longitudinal, linear 

 area. Tarsal claw^s heavy, symmetrical, simple; arolium suggested 

 by a very minute chitinous convexity between their bases. 



Allotype: 9 ; Cruz del Eje, Cordoba, Argentina. [Hebard Col- 

 lection.] 



Very different in general appearance from male. Size larger, 

 form broader. Interocular space narrower than in dubia, though 

 much broader than in male, slightly narrower than that between 

 the somewhat less prominent ocelli. Pronotum larger, rather 

 strongly convex to the cingulate lateral margins, which meso- 

 cephalad are weakly and narrowly reflexed; margin nearly semi- 

 circular to the truncate caudal margin, the latter showing a sub- 

 obsolete convexity between the shoulders; latero-caudal angles 

 rectangulate and sharply rounded. Tegmina greatly reduced, ex- 

 tending caudad as far as (vaiying in the series to slightly beyond) 

 caudal margin of median segment, oblique truncate from bluntly 

 rounded apex to near base of sutural margin (often with section in 

 anal field less oblique and showing some convexity) ; unlike females 

 oiduhia, separated by a very brief interval (varying to attingent in 

 the series). Abdomen much larger and heavier in structure. Cerci 

 moniliform, very small, projecting only slightly beyond the abdo- 

 minal outline. Limbs and their armament and specialization simi- 

 lar to male, except that they aresomewhat shorter and heavier. 



Coloration of male. Head blackish liver brown, the ocelli 

 and subocellar areas, proximal antennal joint, palpi and mouth- 

 parts ochraceous-buff . Pronotum translucent ochraceous-buff ; disk 

 blackish prouts brown \\\i\x flecks of ochraceous-buff mesad,''^° this 

 dark area spreading and including the shoulders and intervening 

 area caudad, becoming deep cinnamon-brown latero-caudad. Teg- 

 mina ochraceous-bufT in proximal portion of anal field, all of mar- 

 ginal field and more narrowdy distad on costal margin, humeral 

 trunk heavily suffused with blackish chestnut brown, this spread- 

 ing over all portions of the tegmina except those mentioned above, 

 but becoming dilute toward the sutural margin and distad. In one 

 paratype the entire anal field is pale, while in another the dark suf- 

 fusion is very weak everywhere except toward the humeral trunk. 

 Wings transparent, tinged with dresclen brown in anterior field, 

 but opaque, buffy, in area of costal veins, faintly tinged with brown 



"^ This and the following features we believe to be of generic rather than specific 

 value. 



^° In the series of paratypes there are individuals with disk lacking pale flecks 

 or showing one or two lateral linear flecks and a single mesal or meso-caudal fleck. 

 In the type there is an additional fleck mesad, while in other paratypes there is a 

 distinct lyrate area of this paler coloration. Intensification and recession of 

 color pattern account for these differences. 



