474 PROCEEDINGS OF THE NATIONAL MUSEUIVI vol. in 



coxae. Labial segments: I, 0.60(0.57-0.60); 11, 1.04(1.01-1.10); III, 

 0.94(0.90-1.01); IV, 0.54(0.50-0.56). 



Pronotum: Length more than half width, 2.14(2.02-2.26) :4.03 

 (3.82-4.26); anterior margin moderately, simply emarginate; lateral 

 margin entire, broadly and shallowly curved, with nine or ten seti- 

 gerous punctures submarginally; transverse impression obsolete to 

 absent, marked by very irregular row of scattered punctures; anterior 

 lobe impunctate except for lateral patch of about one dozen coarse 

 punctures with minute punctures interspersed; posterior lobe with 

 few moderate punctures medially and laterally. 



Scutellum: Longer than wide, 2.66(2.53-2.79) :2. 53(2.34-2.73); disc 

 polished, with numerous coarse, usually foveate punctures becoming 

 finer toward apex. 



Hemelytron: Clavus and corium shining; clavus with one row of 

 punctures; mesocorial surface slightly uneven, punctures in one row 

 paralleling claval suture and closely set on basal half, apically the 

 punctures are much finer and sparser; exocorium obsoletely to dis- 

 tinctly punctate for full length; costa with two tp four setigerous 

 punctures; membranal suture straight, lateral angle distinctly pro- 

 duced; membrane longer than basal width, surpassing apex of 

 abdomen. 



Propleuron: Shining, punctate ventrally in depression and anterior 

 to acetabulum; prosternal carinae less than half as high as labial II. 



Mesopleuron and metapleuron: Similar to figure 106, but peritreme 

 abruptly terminated apically. 



Legs: Posterior femur with numerous small tubercles on ventral 

 face; posteroventral margin of hind tibia with a finely crenulate basal 

 emargination and a strong angulation distad of it (as in fig. 153). 



Sternites: Shining, impunctate except in trichobothrial area. 



Terminalia: Genital capsule with broad, shallow emargination 

 medially; gonostylus as illustrated (fig. 222). 



Length of body: 7.89(7.38-8.38). 



Female: Similar to male, but without modification of posterior 

 tibia. 



Head: Length-width ratio, 1.18(1.13-1.23): 1.87(1.75-2.00); inter- 

 ocular width, 1.16(1.11-1.23). Antennal segments: I, 0.41(0.40- 

 0.43); II, 0.54(0.50-0.60); III, 0.55(0.50-0.60); IV, 0.70(0.70-0.72); 

 V, 0.76(0.70-0.79). Labial segments: I, 0.57(0.53-0.64); II, 1.10 

 (1.03-1.16); III, 0.94(0.90-1.00); IV, 0.53(0.49-0.56). 



Pronotum: Length-width ratio, 2.31(2.12-2.60) :3.97(3.71-4.29). 



Scutellum: Length-width ratio, 2.72(2.53-2.93) :2.40(2.28-2.53). 



Length of body: 7.79(7.18-8.31). 



Type data.— Holo type male and allotype female (both MCZ), 

 "Oracle, Ariz., ll-iii-1919, 4500 ft." Paratypes as follows: 



