568 PROCEEDINGS OF THE NATIONAL MUSEUM vol. m 



turos posteriorly. Antennal segments: I, 0.26(0.26-0.27); II, 0.33 

 (0.30-0.36); III, 0.34(0.33-0.36); IV, 0.41(0.40-0.46); V, 0.48(0.46- 

 0.50). Bucculae as high as labial II; labium reaching between middle 

 coxae. Labial segments: I, 0.48(0.46-0.50); II, 0.67(0.66-0.70); 

 III, 0.59(0.53-0.68); IV, 0.43(0.40-0.46). 



Pronotiim: Width about twice length, 2.60(2.40-3.06) : 1.32(1. 23- 

 1.39); anterior margin strongly emarginate; side margins convex, 

 not sinuate nor constricted at ends of transverse groove, more abruptly 

 narrowed anteriorly; lateral submarginal row with six or seven 

 setigerous punctures; transverse groove weak, marked hj a row of 

 close-set, prominent punctures; anterior lobe impunctate discally, 

 with an irregular double row of prominent punctures and numerous 

 minute ones; submarginally at apex between eyes and laterally with 

 numerous punctures similar to those of transverse groove; posterior 

 lobe polished, with few scattered, moderate punctures and more 

 numerous minute ones on median disc and laterally. 



Scutellum: Distinctly longer than broad, 1.83(1.69-2.06) : 1.64 (1.56- 

 1.82); triangular, apex narrowed; disc with numerous distinct, 

 irregularly placed punctures except on basal fifth and on apex. 



Hemelytron: Corial areas well defined, pohshed; mesocorium with 

 numerous punctures, these obsolete on middle third, coarser and 

 closer set in two rows paralleling claval suture; exocorial area distinctly, 

 closely and rather irregularly punctured throughout; costa with a 

 single, subbasal, setigerous puncture; clavus with a disrupted, sub- 

 median row of distinct, close-set punctures; membranal suture 

 straight; membrane slightly surpassing apex of abdomen, length and 

 basal w^dth subequal. 



Mesopleuron: Evaporatorium extensive, reaching posterolateral 

 angle of segment and prolonged forward along side margin; posterior 

 margin finely crenulate. 



Metapleuron: Evaporatorium occupying more than mesal three- 

 fourths of segment, obliquely and abruptly separated from impunctate 

 lateral polished area. 



Sternites: Shining, impunctate, irregularly sculptured with obsolete 

 to distinct longitudinal rugae. 



Terminalia: vSubgenital plate with apical margin slightly flaring 

 and broadly, deeply, sinuate at middle apex; gonostyli as illustrated 

 (fig. 257). 



Length of body: 4.88(4.57-5.28). 



Female: Very similar to male, measurements averaging larger. 



Head: Width-length ratio, 1.33(1.30-1.40) :0.89(0.86-0.93); inter- 

 ocular width 0.82(0.81-0.80). Antennal segments: I, 0.27(0.26- 

 0.30); II, 0.33(0.30-0.36); III, 0.33(0.30-0.36); IV, 0.44(0.40-0.46); 



