306 PROCEEDINGS OF THE ACADEMY OF [March, 



truncate. Pygidium slightly longer than basal breadth, diminishing 

 in width, apex truncate. Forceps simple, unarmed, about equal to 

 half the length of the abdomen; basal halves of the arms subparallel, 

 apical halves bent at an angle and meeting, together forming an acute 

 angle. 



General color brownish-black above, reddish-brown below. Pro- 

 notum wdth the anterior two-thirds reddish-orange, posterior third 

 brownish-black. Antennae wood-brown, with the two apical joints 

 pale-yello^\ash. Limbs brownish-orange. 



Measurements. 



Total length, 5.5 mm. 



Length of pronotum, LO " 



Width of pronotum, LO " 



Length of tegmina, L2 " 



Length of forceps, LO " 



Labia rotundata Scudder. 



1876. Labia rotundata Scudder, Proc. Boston Soc. Nat. Hist., XVIII, p. 263. 

 [Mexico.] 



One female; Orizaba, Vera Cruz, Mexico. January 9-16, 1892. (H. 

 Osborn.) [U. S. N. M.] 



This specimen exhibits one structural difference from the original 

 description, in that the posterior angles of the pronotum are rather 

 narrowly rounded, instead of "very broadly rounded." 



This species has been recorded from Mexico, Guatemala City, Acey- 

 tuno and Duenas, Guatemala. 



Genus SPARATTA Serville. 

 1839. Sparatta Serville, Orthopt^res, p. 51. 

 Type: S. peJvimetra Serville. 

 Sparatta flavipennula n. sp. 



Types: c^ and 9 ; Motzorongo, Vera Cruz, Mexico. January, 1892. 

 (H. Osborn.) [U. S. N. M.] 



Apparently allied to S. pelvimetra Serville, but differing in the broader 

 and shorter pygidium, the shorter anal segment, the unarmed and sub- 

 lamellate inner edge of the forceps, and different general coloration. 

 Relationship also appears to exist with S. pygidiata and semiruja 

 Kirby, but from the former it can be separated by the deeper anal 

 segment, the longer pygidium and strongly toothed forceps ; and from 

 semiruja by the same characters and the longer points to the forceps. 



d^ (not quite mature). Size small; body strongly depressed, broad- 

 est in the abdominal region, sparsely clothed with rather long bristles. 

 Head equal to the pronotum in width ; antennae with the first and third 



