BYRRHID/E 9 



around which the punctures are less crowded; antennae piceous-red, 

 gradually enlarged and blackish distally; prothorax distinctly, finely 

 and rather closely punctured, narrowed anteriorly, the sides not 

 arcuate but slightly sinuate, the lateral margin sharp, the angles 

 all acute; scutellum with pale yellowish pubescence throughout; 

 elytra continuing the outline of the prothorax, finely, distinctly and 

 fairly closely punctured and indistinctly sulcate, the sides sub- 

 parallel, the tips conjointly rounded; under surface rufo-piceous, 

 thickly clothed with pale pubescence which almost conceals the 

 sculpture, especially on the abdomen; legs piceous, the femora 

 paler, all grooved for the reception of the tibiae; tibiae spinulose 

 externally, the front and middle pairs with the external margin 

 arcuate, the posterior simply broader toward tip, the anterior alone 

 grooved for the reception of the tarsi; third tarsal joint lobed be- 

 neath. Length 4.0 mm. Colorado (Leadville). [Pedilophorus hes- 

 perus Wickh. Can. Ent., 1903, p. 182] hesperus Wickh. 



Broadly oblong-elliptical, dark cupreo-aeneous, the pubescence very 

 short, fine, sparse and recumbent; head coarsely, rather closely 

 punctate throughout; prothorax with the sides nearly straight, the 

 hind angles distinctly acute, the anterior only slightly less than right; 

 surface more finely and sparsely punctured than the head, the 

 punctures separated by from two to four times their own diameters 

 at the middle, becoming closer and slightly larger at the sides, 

 having a distinct foveiform depression within the hind angles; elytra 

 punctured like the pronotum; under surface piceous, densely punc- 

 tate and pubescent as usual; third tarsal joint lobed. Length 5.6 

 mm.; width 3.3 mm. Washington State. [Pedilophorus snbcnpreiis 

 Fall, Tr. Am. Ent. Soc., 1907, p. 225] subcupreus Fall 



Moderately broadly oblong-elliptical, blackish, with feeble green- 

 bronze lustre, shining, clothed with recumbent black hairs, which 

 become predominantly mingled with white and brown laterally, 

 inclosing at the sides of the elytra a conspicuous dark spot; antennae 

 black, the sixth joint as wide as long, the seventh distinctly trans- 

 verse, eighth to tenth strongly transverse: head moderately closely, 

 strongly punctate, with a smooth spot at the middle of the vertex 

 but without frontal fovea; prothorax nearly as wide as the elytra, 

 the sides nearly straight, the angles acute; surface deeply but not 

 coarsely punctate, the punctures separated by a little more than 

 their own diameters at the middle, becoming slightly larger and 

 closer laterally; elytra with the sides parallel and very feebly arcuate 

 in basal two-thirds, the punctuation similar to that of the pronotum; 

 under surface rufo-piceous, densely, rather coarsely punctate, with 

 recumbent ochreo-cinereous pubescence: tarsi not lobed. Length 

 4.0 mm.; width 2.4 mm. New Mexico (Las Vegas). [Pedilophorus 

 lateral-is Fall. 1. c., p. 225] lateralis Fall 



In noting the published characters of the four species last de- 

 scribed, which are unknown to me and provisionally referred to 

 Morychus, it becomes evident that some doubt may attach to 



