BEMBIDIIN^E 219 



distinctly traceable, the inner four rather well impressed and dis- 

 tinct; foveae as usual. Length 2.6 mm.; width 0.9 mm. Arizona 

 (probably southern) arizonica n. sp. 



8 Body oblong-oval, slightly convex, shining, with rather feebler micro- 

 reticulation, black, the elytra blackish-piceous, the legs rufo-piceous; 

 head two-thirds as wide as the prothorax, the eyes, rather small and 

 not very prominent; antennae fusco-testaceous, moderately slender, 

 only a little more than half as long as the elytra, the medial joints 

 scarcely one-half longer than wide, with the third longer than either 

 the second or fourth; prothorax one-half to three-fifths wider than 

 long, barely perceptibly wider at base than at apex, the latter very 

 feebly sinuate, with obtusely rounded angles; sides very finely re- 

 flexed, broadly, evenly rounded in about apical, oblique and straight 

 in basal, half, becoming very slightly sinuate immediately at the 

 angles, which are consequently right and subprominent, with the 

 apex slightly blunt; transverse impressions very feeble, the stria fine; 

 latero-basal impressions shallow, sometimes obliquely sublinear; ely- 

 tra oblong, with well reflexed and slightly arcuate sides, gradually 

 parabolic in apical third, more or less nearly one-half longer than 

 wide and not quite one-half wider than the prothorax; about four 

 fine and feeble striae are detectible, the sutural evidently deeper 

 than any other; foveae as usual. Length 2.3-2.65 mm.; width 0.85 

 -1.15 mm. New York (Catskill Mts.), H. H. Smith. Two speci- 

 mens. The male is notably larger and broader than the female. 



debilicollis n. sp. 



Body narrowly oblong, feebly convex, moderately shining, black, the 

 legs rufo-piceous; head three-fifths as wide as the prothorax, the 

 eyes rather small, moderately prominent; antennae somewhat thick 

 and short, fusco-testaceous, but little more than one-half as long as 

 the elytra, the medial joints barely one-half longer than wide, the 

 third distinctly longer than the second or fourth; prothorax not over 

 one-half wider than long, the base and feebly sinuate apex equal in 

 width; sides rather finely reflexed, rounded anteriorly, oblique and 

 nearly straight in about basal half, becoming very slightly sinuate 

 near the angles, which are right and sharp; transverse impressions 

 feeble, the stria somewhat fine, the latero-basal impressions rather 

 small and shallow; elytra about three-fifths longer than wide, three- 

 sevenths wider than the prothorax, gradually rounded in about api- 

 cal third, parallel, the sides feebly arcuate and well reflexed, the 

 humeri somewhat less broadly rounded than in any other species; 

 striae about four in number, fine and feebly impressed, the foveae 

 as usual. Length 2.25-2.5 mm.; width 0.85-0.95 mm. California 

 (Humboldt Co.; also Mokelumne Hill, Calaveras Co.). Five speci- 

 mens californica n. sp. 



The four species having an obtuse carina near the thoracic angles, 

 differ conspicuously from the others and also among themselves. 

 The European nana, which is one of these, is included for compari- 

 son. Of the remaining species, the widely distributed inornata, 



