2 J. L. LECONTE, M. D. 



C¥OHRUS Fab. 



Mr. L. E. Ricksecker, who has diligently collected in the vicinity of 

 Spokane Falls, Washington Territory, has kindly communicated to me 

 two forms of this interesting genus, which seem to be entitled to specific 

 recognition. Mr. Ricksecker has been singularly fortunate in his Cychrine 

 discoveries, and it is to him that we owe our knowledge of the occurrence 

 of the group (Sphgeroderus), with front tarsi of % strongly dilated, west 

 of the Rocky Mountains, in C. relictus Horn. 



C. (Spheeroderus) regularis.— Black, not very shining, of the same form and 

 sculpture as C. relictus, except on the elytra, which have 12 perfectly regular and 

 entire impressed punctured striae; the 13th is composed of separate punctures con- 

 fused with the marginal ones ; the interspaces are somewhat wider than the stri*, 

 the 4th and Sth are interrupted by only 3 or 4 punctures. Length 16 mm.; .65 

 inch. 



%. Front tarsi with joints 1-3 dilated, as broad as their respective lengths^ 

 densely papillose beneath. 



One pair found in the Coeur d' Alene Mountains, Idaho, by Mr. Rick- 

 secker, and kindly communicated to me. 



C. Kicliscclceri. — Black, head and prothorax densely strongly punctured, 

 the latter slightly wider than long, narrowed behind but scarcely sinuate on the 

 sides; hind angles obtuse, dorsal channel and posterior transverse impression well 

 marked; basal impressions wanting. .Elytra nearly perpendicularly declivous 

 behind, closely rugose and densely covered with shining granules, which exhibit 

 in places a'slight tendency to form regular rows. Length 17.5 mm. ; .7 inch. 



Montana, one specimen, Mr. Ricksecker. This species is intermediate 

 between C tuherculatus and C. Hemphillii. 



PACHETEL.KS Chaud. 

 P. parca. — Slender, elongate, piceous, under surface and legs rufo-piceous. 

 Head and prothorax finely rugose, with scattered distinct punctures. Prothorax 

 as long as wide, dorsal line entire, sides strongly margined and reflexed, broadly 

 rounded, sub-sinuate near the base, apex slightly emarginate, front angles some- 

 what acute, hind angles rectangular, base nearly straight. Elytra obtusely striate, 

 interspaces moderately convex, alutaceous, each with a row of well marked dis- 

 tant punctures. Antennae stout, extending to the base of the prothorax ; front 

 thighs armed with a large acute tooth. Length 14 mm. 



Arizona, one specimen. Resembles the description given by Chaudoir 

 of some of the large Tropical species, but seems to diiFer from all of them 

 by the punctures of the head and thorax, and by the interspaces of the 

 elytra each being furnished with punctures. 



L.EBIA Latr. 



Lj. puiictif^ra. — Pale piceous, glabrous, punctured above except on the front 

 and middle of the head; under surface smooth. Prothorax with the basal lobe 

 feeble, sides broadly flattened and rounded, hind angles nearly rectangular. Ely- 



