R.UTELIN/E 87 



more strongly punctate than in the preceding, similarly feebly so 

 laterad; pygidium greenish and not cupreous, similarly feebly sculp- 

 tured and convex but never with trace of a tumescent median line; 

 legs sometimes with more or less bluish lustre along the lower part 

 of the femora and tibiae, the sixth ventral similar. Female much 

 larger than the male, the prothorax much narrower than the elytra, 

 three-fourths wider than long, the sides similarly converging and 

 arcuate throughout; clypeal suture defined almost throughout by 

 slight tumescence, the clypeus almost as in the male; eye? much less 

 prominent, separated by about four times their width; elytra nearly 

 similar but a little more arcuate at the sides; pygidium less convex, 

 slightly less feebly sculptured and more impressed along the lower 

 lateral margins. Length (cf) 18.7-21.0, (9) 22.5 mm.; width (cf) 

 lo.o-n.o (9) 12.4 mm Mexico (Colonia Garcia, Sierra Madre 

 Mt?., Chihuahua), Townsend. One female and six males. 



*sonorica n. sp. 



5 Male of shorter broader form than in either of the preceding, rather 

 bright pure green in color above, the clypeus coppery; under surface 

 and pygidium colored nearly as in sonorica, but with the tarsi darker, 

 blackish and without evident metallic lustre; head nearly similar 

 throughout, the eyes a little more separated and the broadly, sub- 

 circularly rounded clypeus rather more narrowed at apex, similarly 

 reflexed; last palpal joint with the opaque impression similarly 

 shallow; prothorax much shorter, twice as wide as long, the sides 

 broadly arcuate, becoming subparallel posteriorly and more con- 

 vergent apically, the apical angles very short though rather well 

 defined, the basal narrowly rounded, the outline and sculpture nearly 

 as in the preceding species, but with the basal lobe broader and much 

 less definite; scutellum nearly as in sonorica, the elytra parallel, with 

 feebly arcuate sides and rapidly very obtusely rounded apex, about a 

 fifth longer than wide and rather evidently wider than the pro- 

 thorax, the sculpture nearly similar; pygidium shining, pearly green- 

 ish-coppery, almost similarly feebly sculptured, the median line not 

 tumescent, the sixth ventral nearly similar. Female much larger 

 than the male but similarly stout, the head relatively still smaller, 

 with the less prominent eyes separated by nearly four times their 

 width; prothorax fully twice as wide as long and only a little narrower 

 than the elytra, as in the male, the sides evenly and rather strongly 

 arcuate, somewhat converging toward base and much more strongly 

 anteriad, the scupture as in the male; elytra a little larger and some- 

 what more elongate, similar otherwise, the pygidium less convex but 

 not otherwise differing. Length (cf) 18.0-21.0, (9) 24.0 mm.; 

 width (cf) 10.0-12.2, (9 ) 13.0 mm. Arizona (Grand Canon of the 

 Colorado) and New Mexico (Fort Wingate). One female and five 

 males. [Phisiotis lecontei Horn] lecontei Horn 



The Mexican Plusiotis chalcothea, orizaba, and alticola, will also 

 have to be referred to the present genus, although in alticola the 

 head becomes a little larger than usual in Plusiotina, but with the 



