78 Annals of the Carnegie Museum. 



hi. Leptysmina rosea Giglio-Tos? 



Leptysmina rosea Giglio-Tos, Boll. Mus. Zool. Anat. Torino, IX, no. 184, p. 35 

 (1894). 



Habitat.. — Specimens from the Rio Paraguay below Asuncion are 

 referred to this species (H. H. Smith). They differ somewhat from 

 the description given by Giglio-Tos, but not sufficiently to warrant 

 describing them as new. See also note after L. gracilis. 



112. Leptysmina gracilis sp. nov. 



Similar to, but decidedly smaller and slenderer than L. rosea 

 Giglio-Tos. Sides of head from lower edge of eyes, the lower edges 

 of pronotum and pleura pale-striped, bordered above by piceous, which 

 latter color gradually fades into the testaceo-olivaceous, or testaceo- 

 brunneous, of the upper side. 



Head horizontal, a trifle narrower than the front edge of the pro- 

 notum. its sides parallel to the eyes; latter fairly prominent, and a 

 trifle longer than the anterior edge of the cheeks, with a metallic 

 lustre, and narrowly banded lengthwise alternately with piceous and 

 testaceous, separated above by a space about one-half (c? ) or two- 

 thirds (9 ) the diameter of the basal antennal joint; fastigium of the 

 vertex as in rosea, but with the longitudinal carinas and sulcations 

 less profound than in that species. Frontal costa cf equal width and 

 moderately sulcate throughout, viewed laterally nearly straight. 

 Antennae with the basal segments flattened, subtriquetrous, a little 

 longer than the head and pronotum combined in both sexes. Pronot- 

 um closely and rather finely punctulate throughout, the median carina 

 visible, and of equal prominence throughout, the transverse sulci 

 faint, the last one cutting it at about one-third of the length from the 

 hind margin; posterior margin broadly rounded, the anterior edge 

 truncate at middle. Tegmina lanceolate, their apex acuminate, and 

 extending beyond the tip of the abdomen in both sexes. Femora a 

 little robust, the anterior and middle pair short, the posterior ones 

 evenly tapering, reaching to, or just beyond, the apex of the sixth 

 abdominal segment in both sexes. Last ventral segment of male 

 abdomen elongate-acuminate, the sides developed into lobe-like pro- 

 jections, as described in connection with the diagnosis of L. rosea. 

 Supra-anal plate very similar to that of the other described species. 

 Prosterna! spine variable, but not laterally compressed. 



General color above pale testaceo-olivaceous. Sides as described 



