4 Journal New York Entomological Society, [^ol xxx. 



Type : male. 



Locality : Chaco de Santiago, Del Estero, Rio Salado, Argentine Republic. 



Small, without spots or markings of any kind; prothorax, body and 

 legs concolorous light brown; tegmina opaque yellow; anterior pro- 

 notum produced forward in a blunt point. 



Tropidoscyta albipes new species. (PI. I, fig. 4.) 



He'ad much longer than wide, very convex between the eyes, shining 

 Teddish-brown, densely pubescent with long silvery hairs ; base almost straight ; 

 eyes large, prominent, dark brown ; ocelli pearly, conspicuous, twice as far 

 from each other as from the eyes, situated well above a line drawn through 

 centers of eyes and less than their own diameter from the margin of the 

 pronotum ; margins of genas rounded ; clypeus as long as wide, extending for 

 more than half its length below inferior margins of gense, tip rounded and 

 very pilose. 



Pronotum broader than high, not compressed, not produced in front, rich 

 reddish-brown with white markings, closely punctate, sparingly pubescent ; 

 metopidium convex ; median carina strongly percurrent and very sharp ; two 

 lateral ridges, the first high, sharp, curving above the humeral angle, higher 

 than the median carina just above the humerals extending downward and back- 

 ward to the lateral margin of the pronotum about halfway between the 

 humeral angles and the tip of the posterior process, the second ridge much 

 smaller, extending from the humeral angle almost directly forward across the 

 metopidium ; a broad white fascia beginning at the highest point of the upper 

 ridge, extending downward to the humeral angle, than backward along the 

 margin of the pronotum to the base of the ridge which it follows upward for 

 a short distance ; a semicircular white spot on the dorsum at the base of the 

 posterior process; posterior process long, heavy, tectiform, suddenly acute, 

 extending slightly beyond the internal angles of the tegmina and just reach- 

 ing the tip of the abdomen. 



Tegmina hyaline, wrinkled, base brown, punctate and pubescent; three 

 ■small black spots in center just below base of pronotal ridge, decreasing in 

 size from above downwards ; veins prominent and strongly pilose ; five apicai 

 and three discoidal cells ; tip clouded with fuscous. 



Under surface of body rich reddish-brown, sparingly pubescent; legs and 

 feet entirely white ; hind tibiae with very minute black spines. 



Length (female) from front of head to tips of tegmina 4 mm. ; width 

 between humeral angles 2.2 mm. 



Length (male) 3.2 mm.; width 1.5 mm. 



Type: female. In addition to being smaller, the male is slightly darker 

 on the under surface. Otherwise the markings and sculpturing is the same. 



Locality: Flores, Manaos, Brazil. Nov. 7, 1919 (Parish). 



