R.UTELI1SME 57 



laterad, slightly more sparsely medially, with a few intermingled 

 finer punctures; pubescence moderately long, erect; median sulcus 

 impressed but not attaining base or apex, the lateral fossae distinct; 

 scutellum irregularly punctate, the punctures finer than those of the 

 pronotum; elytra one-half longer than wide, feebly and arcuately 

 narrowing posteriorly, the surface striato-sulcate, the punctures of 

 the sulci large and shallow; intervals very convex, as wide as the 

 striae; pygidium transversely rugose, sparsely hairy. Length (cf) 

 9 mm. New Mexico viridicollis Schf. 



Body much more slender and elongate-oval than in arboricola. Color 

 black above and beneath, the pronotum broadly feebly pallescent 

 laterally, the pygidium piceous; legs dark piceo-rufous, the hind 

 femora uniform in color and but slightly less dark, though with a 

 somewhat violaceous lustre; pronotum feebly metallic; head nearly 

 as in arboricola but with the eyes much more convex and prominent 

 than in any of the preceding forms, separated by barely five times 

 their width; antennal club small; prothorax barely two-thirds wider 

 than the head and but very little wider than long, the sides parallel 

 and nearly straight in basal three-fifths, thence converging to the 

 slightly blunt but prominent apical angles, the basal moderately 

 rounded; basal bead entire; surface smooth, very shining, sparsely 

 and finely punctate, the median sulcus and lateral oblique fossae 

 obsolete; pubescence sparse, coarse and erect; scutellum rather short, 

 more closely and more strongly punctate than the pronotum; 

 elytra two-fifths longer than wide, subparallel, the sides broadly 

 arcuato-convergent in posterior half, evenly very pale in color, the 

 sulci even but rather less deep and more strongly punctured than 

 usual, the costae about equal to the sulci, except the eighth and ninth, 

 which are united and bear a series of coarse deep punctures; second 

 sulcus from the lateral margin very coarse and deep, divided pos- 

 teriorly by the usual narrow ridge; pygidial sculpture fine, rather 

 close and shallow, transversely intricate, the subapical tumidity 

 obtuse; tooth of the anterior tibiae broad but short and very obtuse; 

 hind tibiae a little longer than the femora. Length (9) 9.0 mm.; 

 width 4.0 mm. A single example unlabeled in the Levette collection. 



angustula n. sp. 



II Form narrowly elongate-oval, rather shining, deep black beneath, 

 the pygidium blue-black; legs and tarsi black, the upper half of the 

 hind femora flavate; head basally and the pronotum with strong 

 greenish lustre, the latter testaceous at the sides, narrowly so toward 

 base; scutellum black, without metallic lustre; elytra flavate-brown, 

 all the costae black, pale basally; head and eyes nearly as in arboricola, 

 the edges of the clypeus broadly but extremely feebly reflexed; 

 antennal club deep shining black, fully as long as the preceding five 

 joints; prothorax transverse, fully one-half wider than long, the 

 sides evenly and broadly arcuate, but slightly more converging 

 apically, the prominent apical angles rather sharply defined, the 

 basal rounded, the basal bead sharp and entire; surface with moder- 

 ate but deep sparse punctures, becoming coarse and close laterad, 

 the sulcus shallow, not complete, the oblique lateral fossae evident 



