376 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxx. 



TOXOPTERUS Bolivar. 

 TOXOPTERUS MINIATUS Bolivar. 



Chapada, Matto Grosso, Brazil. April, November. (H. H. Smith.) 

 [U.S.N.M.] Two males, three females. 



The remarks previously made by the author « reg-arding- the color 

 variations of this species apph' to the material examined in this connec- 

 tion. One male specimen has distinct parallel black lines on the head 

 and flanking the median carina of the pronotum. This phase was also 

 noticed in one specimen from Sapucay, Paragua}-. The above record 

 connects the localities from which the species has been recorded, and 

 shows it is apparently of regular occurrence through at least the upper 

 Amazonian and Madieran region and that of the Paraguay as far south 

 at least as the vicinity of Asuncion. 



STAURORHECTUS Giglio-Tos. 



KEY TO THE FORMS. 



This key is purely artificial and merely tentative, as two species are only known 

 from one sex, one from the male, the other from the female. Until the unknown 

 sexes are secured no key based on structural characters can be made. 



A. Caudal femora without or with rather intlistinct pregenicular annuli of yellow. 

 Size medium or large. Tegmina of male slightly exceeding the abdo- 

 men. 

 B. Greatest width of the fastigium consideral)ly greater than the length. Caudal 

 tibijB of female reddish or purplish. Colors green and brown with 

 buff. Form rather robust. 

 C. Size large; female ranging from 30 to 38 mm. in lengtli of body. 



longicornis Giglio-Tos. 

 CC. Size meilium; female ranging from 28 to 30 mm. in lengtli of body. 



longlcornis rariegatna, new subspecies. 



BB. Greatest width of fastigium slightly greater than the length. Caudal til)ia3 



of female glaucous. Colors green and l)rown without buff. Form 



slender (ilaucipcx Kehn. 



AA. Caudal femora with very jjronounced pregenicular annuli of yellow. Size 

 small. Tegmina of male much shorter than the al)domen. 



hreripninis, new species. 



STAURORHECTUS LONGICORNIS Giglio-Tos. 



Corumba, Matto Grosso, Brazil (highland). March. [U.S.N.M.] 

 Two males, thi-ee females. 



One of the females belongs to the color phase with the dorsum of 

 the pronotum uniform smoke brown, while one has the lateral carinte 

 of the pronotum more constricted than the others. 



The records of this species now cover from Caiza, Bolivia, and 

 Corumba, Brazil, to Cordoba, Argentina, 



«Proc. Acad. Nat. Sci., Phila., 1906. 



