268 PROCEEDINGS OF THE ACADEMY OF [May-Oct., 



In addition to the type and allotype we have before us two male 

 and one female paratypes which bear the same data as the type, 

 except that all three of them were taken in the month of April. 

 These specimens show no noteworthy variation from the above 

 descriptions, except in furnishing data on the variability of femoral 

 spine formulae. The cephalic femora have on the internal face 

 distad from two to four spines, while the caudal femora are armed 

 on the external margin with from four to six (generally five) spines, 

 the internal with from four to eight spines. 



Phylloptera cognata new species. (Plate XI, figs. 29, 30 and 31.) 



Closely related to P. alliedea Caudell, from Sapucay, Paraguay,*^ 

 agreeing in the sulcation of the cephalic femora, the form of the 

 sternal lobes and the general form, but differing in the more elongate 

 basal outline of the eyes, the axis of which is more oblique dorso- 

 caudad, the more compressed fastigium of the face, the propor- 

 tionately narrower tegmina and the shorter, much broader (propor- 

 tionately) and distinctly bent ovipositor, the apex of which is dorsad 

 and sharply narrowed and on the distal portion of the dorsal margin 

 is strongly dentate. From the above described tenella, cognata can be 

 separated readily by its larger size, the shape of the eyes and the 

 stouter and more abbreviate ovipositor. The male of the species is 

 unknown. 



Type. — 9 ; Chapada, State of Matto Grosso, Brazil. August. (H. 

 H. Smith.) [United States National Museum.] 



Size medium: form compressed: surface dull, mat, the tegmina and 

 exposed portion of the wings coriaceous. Head in general form 

 similar to that of tenella: fastigium faintly longer and more regularly 

 narrowing than in tenella; fastigium of the face as in teiiella, median 

 ocellus large: face bullate to the same degree and laterally com- 

 pressed in similar fashion to that of tenella: palpi equally slender but 

 slightly shorter than in tenella: eyes in basal outline distinctly ovate, 

 the axis oblique: antennae reaching at least as far as the tips of the 

 tegmina. 



Pronotum as in tenella except that the ventro-cephahc angle of 

 the margin of the lateral lobes is more obtuse and less rounded. 

 Tegmina very similar to those of tenella, but the apex is slightly 

 more sharply rounded. Sternal lobes of the type found in tenella, 

 but they are individually slightly more longitudinal. Apex of 

 the abdomen as in tenella, with the following differences: oviposi- 



« Proc. U. S. Nat. Mus., XXX, p. 238, (1906). 



