646 PROCEEDINGS OF THE NATIONAL MUSEUM vol. m 



most of ventral surface yellowish brown; posterior lobe of pronotum, 

 clavi, coria and appendages yellowish. 



Head: Length slightly shorter than width, 0.60(0.60-0.60) : 0.66 

 (0.66-0.67); interocular width, 0.38(0.37-0.40); clypeus surpassing 

 juga by distance equalling one-half its own width; surface coarsely 

 and closely punctate except on clypeus and apical halves of juga; 

 jugum with five marginal pegs, anterior one or two abruptly longer 

 than others. Antennal segments: I, 0.13(0.13-0.14); II, 0.03(0.03- 

 0.04); III, 0.30(0.30-0.30); IV, 0.26(0.26-??); V, 0.30(0.30-??). 

 Labium reaching almost to bases of middle coxae. Labial segments: 

 I, 0.24(0.23-0.26); II, 0.38(0.36-0.41); III, 0.25(0.24-0.26); IV, 

 0.23(0.23-0.24). 



Pronotum: Length three-fourths width, 1.23(1.23-1.23) : 1.61 (1.61- 

 1.62); anterior margin very feebly concave, cupped behind eyes; 

 lateral margin sinuate near base; transverse impression weak except 

 laterally, marked by row of coarse punctures; anterior lobe with 

 broad band of coarse punctures laterally and subapically; and with 

 numerous close-set moderate punctures along midline and over most 

 of calli; posterior lobe, including umbones, with very numerous, 

 close-set punctures becoming finer posteriorly. 



Scutellum: Wider than long, 0.85(0.84-0.85) : 0.67 (0.66-0.68). 



Hemelytron: Mesocorium impunctate except for two rows paral- 

 leling claval suture; exocorium distinctly and strongly punctate 

 virtually to costa. 



Propleuron: Prosternal carinae higher than labial II, anterior mar- 

 gin roundingly perpendicular, ventral margin straight and almost 

 horizontal, posterior end lower but abruptly terminated. 



Legs: Anterior femur ventrally with premedian oblique spine very 

 unevenly furcate and with subapical small tubercle on posteroventral 

 margin; anterior tibia ventrally neither angled nor spined at middle; 

 posterior femur ventrally with subapical spine stout, oblique, shorter 

 than height of femur, subequally furcate at apex, dorsally with sub- 

 apical angulation. 



Terminalia: Gonostylus as illustrated (fig. 291). 



Length of body: 2.89(2.82-2.96). 



Type data. — The types (BrM) are listed as coming from "Mexico, 

 Ventanas in Durango (Forrer) : Panama, Volcan de Chiriqui 4000 to 

 6000 feet (Champion)." 



Specimens studied. — 2 males. 



Pan.vma: Canal Zone: Barro Colorado Island, Oct.-Nov., 1941, Jas. Zetek- 

 No. 4915, 1 male (USNM). Cano Saddle, Gatun Lake, May 3, 1923, R. C- 

 Shannon, 1 male (USNM). 



Discussion. — The two individuals reported on here were the only 

 Central American specimens seen with the anterior pronotal lobe 



