348 PROCEEDINGS OF THE ACADEMY OF [May, 



the same color extends caudad from the eye on the head alone, these 

 cutting off from the dorsal color a broad postocular bar, which is 

 contrasted ventrad with the uniform wax yellow gense. The latter 

 color also covers the face and the ventral half of the lateral lobes of 

 the pronotum; eyes very pale broccoli brown spotted with clove 

 brown; antennae pale ochraceous tipped with clove brown. Dorso- 

 median portion of the lateral lobes of the pronotum with a shining 

 bar of blackish. Ventro-lateral carina of the caudal femoral pagina 

 wax yellow, ventral face of the femora and the caudal tibiae Chinese 

 orange, the spines pale yellow tipped with black; caudal genicular 

 arches black. 



Measurements. 



Length of body 18 . mm. 



Length of pronotum '... 4. " 



Length of tegmen : 15 .3 " 



Length of caudal femur 10.2 " 



In addition to the type, we have before us a paratypic male which 

 shows no important differences from the type. A label with the 

 material states that the species is "very common." 

 Leiotettix pulcher n. sp. 



Type: cf ; Misiones, Argentina. December 12, 1910. (P. Jor- 

 gensen, No. 5.) [Acad. Nat. Sci. Phila., type No. 5,222.] 



Closer to L. hastatus Rehn^ than to any other species of the genus, 

 but differing from that in the smaller size, distinctly narrower and 

 less declivent fastigium, which is also more decidedly excavate, the 

 more compressed pronotum, more angulate caudal margin of the 

 disk of the pronotum, the different sculpture of the supra-anal plate, 

 in the more elongate cerci, which are subfalcate distad, and in the 

 less produced subgenital plate. The color of the caudal tibiae 

 immediately separates this species from flavipes Bruner, but in addi- 

 tion to that the present species can be distinguished by the narrower 

 distal section of the cerci, shorter subgenital plate, and less declivent 

 and more excavate fastigium. The female is very similar to that sex 

 of flavipes, but the pronotum is more constricted, with the caudal 

 margin of the lateral lobes straighter and more vertical, and the tibiae 

 are red. 



Size medium; form rather slender. Head with the occiput very 

 slightly arcuate; interocular space broad, hardly narrower than the 

 greatest width of the fastigium and approximately equal to half of 



** Proc. Acad. Nat. Sci. Phila., 1907, p. 189, fig. 1.3. [Sapucay, Paraguay.] 



