NORTH AMERICAN OOLEOPTERA. 221 



1*. qiiadrulliN u. !?p. — Bla«-k. legs pieeous; elytra very slightly bronzed; 

 antenna; slender, as long as tlie head and thorax, joints all longer than wide; head 

 coarsely and deeply punctured, especially in front, a small vertical space smooth, 

 beneath smooth ; thorax not wider than the head, longer than wide, slightly nar- 

 rower posteriorly; sides slightly sinuate; surface very coarsely and deeply punc- 

 tured, the punctures very irregularly placed at the sides, with an attempt at serial 

 arrangement near the median smooth space; elytra wider than the thorax, longer 

 than wide conjointly, densely j)unotate, sparsely pubescent; abdomen a little more 

 finely and sparsely punctured than the elytra; beneath more finely punctured 

 than above. Length .24 inch ; 6 mm. 



Male. — Anterior tarsi moderately dilated ; last venti-al segment with a triangular 

 cmargination surrounded by a depressed border. 



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

 Aside from the punctuation of the head and thorax the facies of this 

 species is somewhat that of piihertdu^ or aordidvi^. Tn common with 

 tlie two precedin<r species this one has the thorax distinctly narrowed 

 posteriorly. 



Occurs in (^ilifornia and Arizona. 



I*, viridiiniis n. sf). -Form elongate, rather depressed, piceous ; legs rufo- 

 testaeeous ; antennre slender, a little longer than the head and thorax, piceous, 

 basal joints paler, joints all much Irm^er than wide: head quadrate, not large, 

 coarsely and moderately cluscly jjiiiictured at the sides, smooth along the middle 

 and in front, beneath punctate; tliorax not wider than the head, longer than wide, 

 very slightly iKiimwer posteriorly; sides sinuate, punctures arranged in a crowded 

 irregular series in the usual position, between which and the side there are very 

 few punctures ; elytra wider than the thorax, longer than wide conjointly ; surface 

 rather flat, closely but not coarsely punctate, sparsely pubescent; abdomen a little 

 more finely but not more densely punctured than the elytra : beneath sparsely 

 finely punctured. Length ..'5() inch ; 7. 6 mm. 



Male. — Anterior tarsi moderately dilated; last ventral segment with an oval 

 emargination surrounded by a very narrow depressed margin; penultimate seg- 

 ment slightly sinuous at middle. 



i^e7«a/f.— Anterior tarsi nearly as widely dilated ; ventrals entire. 

 I adopt the name for this species under which it has heen distributed 

 by Fauvi'l. ;iltli(Uioh T can lumlly realize its ap))licability. 

 Ofcurs I'rnni the Middle States westward to Missouri. 



1*. COnlVrttlS Lee — Piceous, surface bronzed: anteniiie as long as the liead 

 and thorax, piceous. two basal joints testaceous, joints 8-10 as wide as long; liead 

 orbicular, slightly l)ronzed : surface punctate, a stnooth'space at middle, very 

 sparsely pubescent with short hair, beneath smooth; thorax a little wider than 

 the head, oval, as wide as long, slightly narrowed in front; surface slightly bronzed, 

 moderately densely and evetily punctate, finely pubescent, a smooth space along 

 the middle ; elytra a little wider than the thorax, but not longer, (-onjointly nearly 

 square, slightly bronzed, very densely |)unctate, very finely pubescent: abdomen 

 with similar punctures very sparsely placed ; beneath a little more coarsely punc- 

 tate and more densely at base ; legs pale testaceous, coxie piceous. Length .38 

 inch ; it. .5 mm. 



(56) 



