H. C. FALL 411 



fused with reddish brown in some specimens, not appreciabl}' 

 so in others, the standard spots present, blackish, punctuation 

 almost entirely diffused; eyes distant, front without ocular lines; 

 front claws of male not appreciably enlarged. Ave. length 4.5 

 mm. New Mexico; var. purgatus Arizona. 



Head not at all wider than the thoracic apex, front flat, thickU- nearly uni- 

 formly punctured, the spots diffuse and often ill-defined or subobsolete. Eyes 

 {&) separated by two and one-half times, or (9) by about three times the 

 length of the basal antennal joint, which is rather small. Antennae about two- 

 thirds as long as the body in the female, the tenth joint fully three times as 

 long as wide. 



Prothorax widest and rather stronglj- rounded at about the basal fourth, the 

 sides nearly straight and rather strongly convergent toward the front, incurved 

 posteriorly and with a small but distinct sinuation before the hind angles, which 

 are right or a little acute; disk densely punctate throughout, the side margins 

 less densely so but not smooth; markings obscure and generallj- evanescent 

 anteriorly, the basal ends of the AI being best defined. 



Elytra thickly diffusely punctured throughout, the submargina! stria alone 

 evident, and this more or less double or confused; disk with one or two slightly 

 costiform lines in some females; marginal interspace with numerous punctures 

 anteriorly and a few behind the middle; shield wanting. The median and 

 posterior pairs of spots are often subcontiguous, forming two transverse fasciae, 

 of which the median one is shorter and extends only about half way to the 

 suture. 



Pygidium black, with apical and smaller median marginal dull yellow spots. 

 Body beneath blackish, the last ventral segment often varied with yellow. 

 Legs in great part infuscate, the thighs more or less pale at base. 



Length 4 to 4.9 mm.; width 2 to 2.6 mm. 



Distribution. — N'ew Mexico: Cloudcroft, Jime 11, cf type (Knaus); Beulah 

 (Beyer); Las Vegas Hot Springs, Aug. 9 (Barber <fe Schwarz). 



\'ar. purgatus new variety 



Similar in all essentials to the type form but of a generally brighter more 

 rufo-testaceous color, with the legs concolorous. In some examples the entire 

 upper surface is rufo-testaceous with only the shoulder knob darker. 



This varietal form is based on a series taken b.y Barber and Schwarz at Wil- 

 laims, Arizona, June 30 to July 20. Two examples from the Huachuca Moim- 

 tains (Schaeffer) vary in the color of the legs toward the typical fuscipes, but 

 the legs are still predominant I j' pale. 



There is a rather striking resemblance between tliis form and 

 some specimens of nobilis, which illusion is hcightenetl by the 

 fact that both species were taken at the same place and on the 

 same dates by Messrs. Earlier and Schwarz. The ])rcscnt species 

 is, however, easih^ distinguished from nobilis by its more distant 



TRANS. AM. ENT. SOC, XLI. 



