342 PROCEEDINGS OF THE ACADEMY OF [NoV., 



Length of body 8^., greatest width of head 1.25, length of prono- 

 tum .95, length of tegmen 2.1, greatest width of abdomen 1.7, 

 length of forceps 2.8 mm. 



Head blackish chestnut brown. Antennae with first two joints 

 prouts brown, succeeding joints paler, buckthorn brown, deepening 

 rapidly to mummy brown, which is the color of the seventh to tenth 

 joints (remaining joints missing). Pronotum and limbs immacu- 

 late ochraceous-buff tinged with tawny. Tegmina chestnut brown, 

 showing weakly the paler pronotal coloration at the shoulders and 

 distad, with a small oval of the same coloration mesad, this oval 

 half on the tegmina and half on the exposed portions of the wings 

 and as long as the tegminal width at that point (compare brunneri) , 

 remaining exposed portion of wings chestnut brown. Abdomen 

 dorsad russet tinged with cinnamon-brown distad, except laterad 

 about the glands where it is blackish chestnut brown. Forceps 

 russet tinged with cinnamon-brown. 



The type of this graceful little insect is unique. 



Vostox punctipennis (Stal) 



1860. Forficula punctipennis St&l, Kongl. Svenska Freg. Eugenie's Resa, 

 Ins., p. 304. [cf ; Rio de Janeiro, Brazil.] 



Icafio, Santiago del Estero, Argentina, 1 cf . 



Stal's punctipennis has been placed under V . hrunneipennis (Ser- 

 ville) by Burr. The specimen before us represents a species very 

 close to hrunneipennis but readily distinguished by a number of 

 features. Though Stal's description of punctipennis does not give 

 the most important of these, we believe that the species represented 

 by the specimen at hand is the same, and in consequence we restore 

 the name punctipennis. 



Compared with material of hrunneipennis from the United States, 

 the present male is seen to differ in the following respects. Cheek 

 much shorter, two-fifths instead of two-thirds as long as eye. Ex- 

 posed portion of wings about half as long as tegmen, instead of 

 distinctly less than half that length. Pygidium with marginal 

 flange narrower, lateral points more acute and distal truncation 

 narrower. Median and caudal femora and tibiae heavily suffused 

 with brown mesad. 



Length of body 8.3, length of pronotum 1.7, caudal width of pro- 

 notum 1.6, length of tegmen 2.9, length of exposed portion of wing 

 1.5, length of forceps 3.8 mm. 



^As elsewhere in this paper, the boily h^ngtb given does not include the length 

 •of the forceps. 



