678 PROCEEDINGS OF THE ACADEMY OF [Sept., 



in the finer sculpture, the longer subgenital plate of the male and the 

 more acute supraanal plate of the female. 



Size medium; form as usual in the genus; surface finely punctate. 

 Head elongate; rostrum in the male but slightly more than half the 

 length of the remainder of the head, in the female subecjual to the 

 remainder of the head, acuminate, apex narrowly rounded, carinse dis- 

 tinct; eyes elongate-ovate, quite prominent in the male; antenna very 

 slightly longer than the rostrum in the male, slightly shorter in the 

 female, basal joint distinctly shorter than the eye in the male, slightly 

 shorter in the female. Pronotum with the limbs inserted mesad, 

 cephahc margin broadly rounded. Mesonotum and metanotum 

 slightly strigate. Abdomen with the strigoe absent in the male, faintly 

 marked in the female; supraanal plate of the male acuminate, apex 

 rounded; subgenital plate of the male narrowly produced, needle-like; 

 supraanal plate of the female acuminate, apex very narrowly rounded; 

 ovipositor valves stout, the margins unarmed ; subgenital plate of the 

 female broadly arcuate. Cephalic and median limbs subequal in size, 

 shorter than the pronotum. Caudal femora elongate, reaching to the 

 middle of the fifth abdominal segment in the male and of the fourth 

 in the female; caudal tibise armed on the margins with fifteen to 

 sixteen spines in the male and twenty in the female. 



General color olive-green, in the male washed along the sides of the 

 pronotum and the postocular region of the head with yelloAvish green. 



Measurements. 



& 9 



Length of body, 63.5 mm. 91 mm. 



Length of head, 10.5 " 15 " 



Length of rostrum, 4 " 7.5 " 



Length of pronotum, 13.5 " 19 " 



Length of cephalic femora, 9.7 " 13 " 



Length of caudal femora 23 " 27.2 " 



Length of caudal tibia?, 24 " 31.5 " 



Length of subgenital plate, 5 " 



Two specimens of each sex have been examined. The paratypic 

 female has lost both caudal tibiae, the paratypic male, however, exliibits 

 a spine armament of twenty spines, which is rather different from that 

 of the type. Otherwise the specimens exhibit no striking variation. 



Tetanorhynchus smithi n. sp. 



Type: d^ ; Corumba, Matto Grosso, Brazil. March (Highland). 

 (H. H. Smith.) [U. S. Nat. Mus., No. 8117.] 



Allied to 7\ humilis and T. hihastatu^, but differing in the more 



