Valumt- III. Niimhrr 10 



TWO TACHIGALIA MEMBRACIDS 

 By Herbert Osborn 



Endoastus (?) productus sp. nov. 

 (Fig. 17.) 



Head produced before the eyes, about as long as width 

 between the eyes, distinctly furrowed above and below and bifid 

 at tip, ocelli close to front margin of eye, antennae below the 

 eye in distinct sockets with raised margin ; pronotum strongly 

 convex, sloping to head, posterior angles subacute; scutellurn 

 triangular slightly longer than basal width; elytra narrow, 

 scarcely reaching end of abdomen ; legs short cylindric, all of 

 nearly equal length. 



The color is uniformly dark brown except tibiae, which are 

 lighter, the surface of body and elytra densely and minutely 

 punctured. 



Female genital segment three times as long as preceding; 

 the ovipositor extruded; male subgenital plate narrow, upcurved. 



Length of female 5.5 mm., of male 4 mm. 



This species has a more produced head than E. cavicepa 

 Fowl., but there seems to be no good structural character to 

 warrant the formation of a distinct genus for it, and at least 

 until the study of related species shows such distinction it 

 seems proper to place it here. 



Superficially it has a strong resemblance to the Cicadellids 

 but in structural characters is obviously Membracid. 



Eight specimens, seven females, one male. Kartabo, Bartica 

 District, British Guiana, 1920, feeding on the terminal shoots of 

 young Tachigalia trees. 



