132 PROCEEDINGS OF THE ACADEMY OF [Vol. LXXIV 



Vertex sulcate proximad, thence suddenly and sharply declivent, 

 the distal portion represented by a delicate rounded ridge, which 

 fails to extend cephalad as far as the plane of the face by half the 

 width of the first antennal joint. Maxillary palpi elongate but 

 much shorter than in aeta, fourth joint slightly shorter than third 

 and slightly over half as long as fifth. Margin of pronotal lateral 

 lobes less broadly and evenly convex than in aeta, with humeral 

 sinus weaker, the ventro-caudal angle broadly but more strongly 

 rounded and the ventral margin thence nearly straight to the 

 ventro-cephalic angle. Metanotum hyaline and swollen beneath 

 stridulating field of tegmina. Median segment with a transverse 

 proximal ridge adjacent to that area. First abdominal tergite 

 with a large round area mesad which is deeply covered with a wax- 

 like substance, second tergite with a smaller but similar area, 

 third tergite with a much smaller and weaker area. Supra-anal 

 plate very small and inconspicuous, rounded trigonal, with dorsal 

 surface concave and lateral margins wrinkled mesad. Cerci very 

 elongate, very weakly sigmoid except distad where they are strongly 

 curved inward, shaft swollen and gradually enlarging in proximal 

 half, this swelling occurring on the internal portion only, thence 

 tapering and slender to the incurved, enlarged and bluntly rounded 

 apex, at the base of which proximad is a small process directed 

 distad and parallel to the true apex, beyond which it projects 

 slightly and is there terminated in a small, chitinous, sharply 

 decurved tooth. Subgenital plate extending caudad to near cereal 

 apices, narrowing gradually in proximal portions and thence medio- 

 longitudinally caiinate, deeply and very narrowly V-emarginate 

 distad, the broad fingers thus formed with apices more strongly 

 convex externally than internally. Limbs as in aeta. Ventral 

 femoral margins with the following minute spines distad. Cephalic 

 internal 0, cephalic external 0, median internal 0, median external 

 and 3, caudal internal and 1, caudal external 2 and 3. 



General coloration pale yellowish green, probably pale green in 

 life. Antennae with first two joints suffused with whitish dorsad 

 and with large brown suffusions ventrad, remaining portions 

 yellowish with weakly defined, narrow, suffused brown annuli. 

 Stridulating field of sinistral tegmen showing a large median suf- 

 fusion of dark brown; other portions of tegmina with a small but 

 visible fleck of blackish brown mesad in all the larger areolae 

 except distad in scapular field and with all the countless and 

 microscopic intervals between the veinlets toward the sutural 

 margin black, these areas so minute that they are invisible to the 

 naked eye and do not even cause the tegmina to there appear darker 

 in shade. Pronotum with all but lower portions of lateral lobes 

 showing a profusion of minutely microscopic brown dots and with 

 one larger, though minute, brown dot between the transverse sulci 

 on each side of the median carina. Cephalic femora with a weak 

 suffusion and flecks of brown proximad on the external surface. 

 Cephalic tibiae with enlarged proximal portions suffused with 



