552 PROCEEDINGS OF THE NATIONAL MUSEUM vol. m 



Pronotum: Width slightly more or less than twice length, 3.34 

 (2.86-3.84): 1.67(1.36-2.02); anterior margin broadly and moderately 

 deeply emargmate; lateral margins faintly to very strongly constricted 

 at midlength (fig. 72) (see Discussion), with submarginal row of some 

 twenty setigerous punctm-es; transverse impression slightly post- 

 median, absent except laterally, usually marked by a medially inter- 

 rupted row of distinct punctures; anterior lobe impunctate discally, 

 laterally with numerous close-set, very fine punctures and occasionally 

 several scattered coarser ones; posterior lobe impunctate or with fine 

 punctures laterally. 



Scutellum: Usually little longer than wide, 2.21(1.91-2.60) :2. 16 

 (1.82-2.47); surface polished, with few to several distinct punctures 

 discally and numerous fine ones apically; apex narrowed, width less 

 than half of membranal suture. 



Hemelytron: Corial areas well defined; surface polished to vaguely 

 alutaceous, variously punctured (see Discussion) but more coarsely 

 so basally and in two rows paralleling ciaval suture; clavus with 

 coarser punctures arranged in longitudinal rows; costa with five to 

 eight setigerous punctures ; membranal suture nearly straight, slightly 

 acute at lateral angle. 



Propleuron: Smooth or faintly alutaceous, punctate only in de- 

 pression. 



Mesopleuron : Evaporatorium reaching two-thirds across segment, 

 separated from posterior margin by a polished band; lateral area some- 

 what rugose, impunctate. 



Metapleuron: Evaporatorium occupying mesal two-thu'ds or three- 

 fourths of segment, polished area smooth, impunctate: peritreme 

 extending about half-way across segment, apex fusing with surrounding 

 cuticle or more or less free due to forward curving of posterior margin, 

 lateral polished area impunctate; sternites polished, impunctate. 



Legs: Moderately long, posterior femur with a subapical, midventral 

 tubercle (see Discussion); posterior tibiae distinctly curved in apical 

 half. 



Terminalia: Genital capsule polished, with few punctures laterally, 

 apical margin weakly sinuate; gonostylus as illustrated (fig. 250). 



Length of body: 6.34(5.38-7.19). 



Female : Very similar to male, subapical tubercle on midventer of 

 posterior femur sometimes absent; measurements averaging larger. 



Head: Length-width ratio, 1.08(1.03-1.16) : 1.74(1.60-1.89) ; inter- 

 ocular width, 1.12(1.01-1.24). Antennal segments: I, 0.33(0.30- 

 0.38); II, 0.37(0.33-0.43); III, 0.31(0.30-0.36); IV, 0.43(0.38-0.50); 

 V, 0.49(0.43-0.53). Labial segments: I, 0.71(0.63-0.80); II, 0.89 

 (0.80-1.00); III, 0.78(0.70-0.84); IV, 0.58(0.53-0.63). 



Pronotum: Width-length ratio, 3.57(3.16-3.90) : 1.73(1.49-2.02). 



