588 PROCEEDINGS OF THE NATIONAL MUSEUM vol. in 



ing to side margin of segment, costa with two setigerous punctures, 

 and bucculae low and evanescent posteriorly. 



Description. — Male: Oval, width greatest just anterior to mid- 

 length. 



Head (fig. 45): Length less than two-thirds width, 0.96(0.90-1.05): 

 1.52(1.38-1.63); interocular width, 0.83(0.78-0.87); anterior outline 

 a broad, sometimes slightly flattened semicircle; juga as long as 

 clypeus, latter very slightly narrowed toward apex; a single, sub- 

 marginal setigerous puncture next to eye; surface impunctate, with 

 broad, shallow, longitudinal depression on juga; ocelli large, separated 

 from eye by space less than transverse ocellar width; jugum ventrally 

 and maxillary plate (except along bucculae) shining, impunctate. 

 Antennal segments: I, 0.28(0.25-0.30); II, 0.43(0.40-0.49); III, 

 0.39(0.33-0.43); IV, 0.52(0.50-0.56); V, 0.63(0.60-0.70). Bucculae 

 lower than labial II, evanescent posteriorly; labium attaining middle 

 coxae. Labial segments: I, 0.44(0.38-0.50); II, 0.81(0.76-0.86); III, 

 0.61(0.56-0.66); IV, 0.46(0.43-0.50). 



Pronotum: Length about twice width, 1.54(1.36-1.62): 3. 14 (2.78- 

 3.41); anterior margin shallowly concave; side margins entire, without 

 "fold," submarginal row of six setigerous punctures; transverse im- 

 pression postmedian, weak to obsolete, marked by single, medially 

 interrupted row of punctures; remainder of surface impunctate except 

 for row of punctures paralleling anterior emargination, a few toward 

 sides and usually several in middle of posterior lobe. 



Scutellum: Longer than wide, 2.32(2. 18-2.43): 1.90(1.69-2.02); sur- 

 face shining, with numerous punctures on disc, impunctate at base 

 and apex. 



Hemelytron: Corium and clavus finely but distinctly alutaceous; 

 exocorium and all of mesocorium, except two rows parallelmg claval 

 suture, impunctate; clavus with a longitudinal row of punctures and 

 a few laterad of this basally; costa with two setigerous punctures; 

 membranal suture faintly bisinuate, lateral angle somewhat acute; 

 membrane distinctly longer than basal width, slightly surpassing 

 apex of abdomen. 



Propleuron: Shining, punctate in depression and anterior to base 

 of acetabulum; prosternal carinae low, acute, truncated ventrally. 



Mesopleuron: Evaporatorium reaching side margin of segment; 

 lateral area impunctate, with few coarse rugae. 



Metapleuron: Lateral margin of evaporatorium oblique, slightl}^ 

 concave; lateral area impunctate. 



Sternites: Polished, impunctate. 



Legs: Moderately long. 



