612 PROCEEDINGS OF THE NATIONAL MUSEUM vol. iii 



irregular row of distinct punctures; anterior lobe iinpunctate except 

 in subapical crescentic impression and in wide lateral band; posterior 

 lobe with most punctures grouped at middle. 



Scutellum: Longer than wide, 2.78(2.73-2.86) : 2.18(2.08-2.24); sur- 

 face with numerous scattered, irregular punctures (except across base) 

 becoming finer toward impunctate apex. 



Hemelytron: Corial areas well defined, surface shining to vaguely 

 alutaceous; exocorium and mesocorium punctured full length, punc- 

 tures becoming coarser basally, mesocorium with one complete, 

 sunken row and one incomplete row of close-set punctures paralleling 

 claval suture; clavus with a single row of punctures; costa with one 

 setigerous puncture; membranal suture nearly straight, outer angle 

 slightly acute. 



Propleuron: Punctate in depression; prosternal carinae strongly 

 raised in anterior half of prosternum, in profile forming a somewhat 

 semicircular lobe (flg. 25). 



Mesopleuron (fig. 107) : Evaporative area reaching to posterolateral 

 angle of segment, thence extended anteriorly along lateral margin; 

 lateral area feebly rugose, impunctate; posterior margin entire. 



Metapleuron (fig. 107) : Evaporative area occupying more than 

 mesal three-fourths, lateral margin straight, oblique; lateral area 

 impunctate, with impressed line close to and paralleling outer edge 

 of evaporative area; osteolar canal reaching half way across segment. 



Legs (figs. 129, 150): Not specially modified. 



Sternites: Shining, laterally roughened by weak rugae and patches 

 of very small tubercules. 



Terminalia: Subgenital plate flared laterally near base, apex with a 

 slight emargination; gonostylus as illustrated (fig. 276). 



Length of body: 6.91(6.73-7.14). 



Female: Very similar to male; measurements averaging slightly 

 smaller. 



Head: Length-width ratio, 1.18(1.16-1.20) : 1.71(1.63-1.75); inter- 

 ocular width, 1.05(1.03-1.10.) Antennal segments: I, 0.34(0.30-0.38); 

 II, 0.47(0.43-0.50); 111, 0.41(0.39-0.46); IV, 0.56(0.52-0.60); V, 

 0.62(0.60-0.64). Labial segments: I, 0.68(0.63-0.73); II, 1.28(1.20- 

 1.33); III, 1.32(1.26-1.38); IV, 1.02(1.00-1.03). 



Pronotum: Length-width ratio, 1.87(1.79-1.95) :3.36(3. 13-3. 52). 



Scutellum: Length-width ratio, 2.76(2.60-2.86) :2.08(1.95-2. 16). 



Length of body: 6.87(6.50-7.16). 



Type data. — Dallas' type (BrM) came from Pard, Brazil. 



Specimens studied. — 5 males, 8 females, as follows : 



Brazil: Par 6,: Pard, Uhler collection, 1 male, 2 females (USNM). Taperina, 

 near Santar^m, August 1927, Zerny, 1 male (USNM). Santar^m, 1 female 

 (Car). 



