BEMBIDIIN^E 119 



tinct punctures, very gradually extinct posteriorly, the foveae slightly 

 before basal and behind apical third. Length (cf 9) 5.5-5.8 mm.; 

 width 2.1-2.25 mm. Arizona (Douglas), F. H. Snow. 



caliginosum n. sp. 



Form still narrower than in caliginosum and smaller in size, moderately 

 convex, dull in lustre, viridi-aeneous, the elytra slightly alutaceous, 

 black, the pale markings broad and very complete, the internal ring 

 about the humeri complete from base to external margin, very broad 

 along the eighth interval, the black line at the anterior fovea well 

 developed; posterior fascia slender internally, scarcely attaining the 

 suture, broadly united externally with the large apical pale area; 

 under surface shining, black, with greenish lustre, the abdomen in 

 part rufescent, the legs, hypomera and epipleura very pale; head 

 large, with very prominent eyes, but little narrower than the pro- 

 thorax and much wider than an elytron, the sulci very shallow, 

 slightly oblique; antennae slender, fuscous, pale basally, the medial 

 joints about three times as long as wide; prothorax four-sevenths 

 wider than long, strongly rounded at the sides, oblique and less so 

 posteriorly to a short sinus before the right angles; impressions very 

 faint and broad, the short stria extremely fine; foveae small, rather 

 shallow, next to the short feeble carina; base fully two-thirds the 

 maximum width; elytra three-fifths longer than wide, three-sevenths 

 wider than the prothorax, parallel, with broadly arcuate sides; striae 

 entire, moderately strong, unimpressed, the punctures not coarse 

 but conspicuous and close-set, obsolete toward posterior third; 

 foveae before basal and behind apical third. Length (cf 9 ) 5.0- 

 5.2 mm.; width 1.8-2.0 mm. Western Texas (Big Springs), Wick- 

 ham. Three specimens placabile n. sp. 



Form much depressed aeneous, not very shining; head broad, the sulci 

 not deep, slightly oblique; antennae slightly longer than the head and 

 prothorax, fuscous, rufo-testaceous at base; prothorax slightly wider 

 than the head, almost twice as wide as long, truncate at apex and 

 base; sides strongly rounded, strongly retracted behind and briefly 

 sinuate, the hind angles right, not rounded; base scarcely more than 

 half the maximum width; surface almost flat,, the stria fine, biabbre- 

 viated; impressions indistinct; foveae small, the carina distinct; ely- 

 tra but slightly wider than the prothorax, flat; striae before the mid- 

 dle finely punctate; intervals flat, with two pale fasciae, the oblique 

 fascia before the middle extending to the second stria, bifurcate 

 internally the ends of the bifurcation evidently the small spots 

 before and behind the anterior fovea, noticeable in maculation of the 

 patruele type broad toward the margin, the angulate fascia near 

 apical third extending inwardly to the third stria, the internal part 

 sometimes rather indistinct; apex broadly and obscurely testaceous; 

 margin anteriorly aeneous, beneath black, the epipleura and legs tes- 

 taceous. Length 6.25 mm. New York. Description drawn from 

 the original cordatum Lee. 



56 Body stout, oblong-suboval, slightly convex, viridi-aeneous and rather 

 dull anteriorly; elytra shining, black; pale lines of the fasciae sep- 

 arated by the black striae, the entire eighth interval pale, except at 



