N'OUTII A.MKRICAN COLEOPTEUA. 2:51 



longer, longer tliaii wide oonjointly, shining, eoarsely not closely punctate, sparsely 

 j)ul)escent: abdomen moderately shining, sparsely punctate; beneath less distinctly 

 punctate. Length 11 inch: less than 3 mm. 



Female. — Anterior tarsi scarcely at all dilated; last ventral entire. 



This is the smallest species known to me in our fauna. It resembles 

 parens, and dift'ors in the darker legs and antennoe, more finely and ir- 

 regularly punctured thorax and more coarsely punctured elytra. 



Two specimens. Garland, Colorado. 



A. gratiis Lee. — Form moderately elongate, reddish yellow, rather shining, 

 inetasteiiium, tip of abdomen and elytral space black: antennae nearly as long as 

 the head and thorax, rather slender, nearly black, the two basal joints pale; head 

 quadrate, coarsely not densely punctured at the sides; beneath obsoletely sparsely 

 jmnctate: thorax not wider than the head, longer than wide, slightly narrowed 

 posteriorly: sides slightly sinuate, median space smooth; sides rather coarsely 

 moderately closely punctured : elytra slightly wider than the thorax and some- 

 what longer, longer than wide conjointly, moderately closely punctate, yellow, 

 with a large oval piceous spot, whit^li joins the side margin; abdomen much less 

 coar.sely punctured than the elytra : beneath more shining and more coarsely punc- 

 tured than above, last two segments black. Length .20 inch ; 5 mm. 



Male. — Anterior tarsi broadly dilated ; last ventral segment with rather large 

 oval emargination. 



Ftmale. — Anterior tarsi narrowly dilated; last ventral entire. 

 A pretty species, varying' in the size ot" the elytral spot, and is easily 

 known by being the only one in our fauna with a pale head. 

 Occurs in the south of California and Arizona. 



A. psederoides Lee— Form slender, elongate; head, body, elytra and tip 

 of abdomen black: thorax, base of abdomen and legs yellow; antennae slender, 

 piceous, three basal joints paler, joints (i-10 as wide as long: head black, neck 

 yellow; surface coarsely sparsely punctate, a median smooth space; beneath 

 sparsely coarsely punctate; thorax oblong, not wider than the head, slightly nar- 

 rower behind ; sides distinctly sinuate, punctures coarse, not densely placed, leav- 

 ing only a narrow smooth space : elytra black, shining, sometimes slightly bluish ; 

 apex narrowly margined with testaceous, punctures rather coarse not densely 

 placed; surface sparsely pubescent; abdomen finely moderately densely punctate, 

 finely pubescent; beneath more distinctly f>unctured than above. Length .14 — .18 

 inch ; 3.6 — 4.5 mm. 



Male. — Anterior tarsi moderately dilated ; last ventral with a feeble emargina- 

 tion and slight triangular impression. 



Female. — Anterior tarsi slightly dilated; last ventral entire. 



There is some variation in sculpture as well as in size in this species. 

 The eastern forms, more especially those from the northern regions, are 

 more coarsely punctured and of larger size ; the California and Arizona 

 specimens are always smaller, and with a finer and slightly denser punc- 

 tuation. 



Occurs everywhere from Canada to Florida, and westward to the Pa- 

 cific coast. 



