SYNOPSIS OF THE LAMIINiE. 125 



a short tubercle abruptly acute at tip each side before the posterior angles, which 

 are emargiiiate ; posterior margin with a transvei-se indented line: scutel black- 

 ish ; elytra irregularly punctured; a few black dots, consisting of tufts of hair, 

 chiefly along the suture : region of the scutel dusky ; a blackish marginal abbre- 

 viated line from the humerus; a blackish line margined with gray, extends from 

 the middle of the suture, obliquely backwards, towards the exterior margin. 

 Not rare in Pennsylvania, also in N. W. Territory." 



Some of the variations are : 



a. Elongate, surface color cinereous, densely clothed with fine 

 grayish jiuboscence, angular band of elytra very acute, punctuation 

 fine, nearly obliterated behind, four rows of minute black dots. 



b. Less elongate, surface color cinereous, pubescence shorter and 

 less den.se, jninctuation coarser, evident behind the elytriil angular 

 band, rows of black dots much interrupted, and in some examples 

 obsolescent. 



e. Surface color reddish testaceous, pubescence short and incon- 

 spicuous punctuation of elytra moderately coarse, a little finer toward 

 apex ; black dots sparse ; three slightly elevated lines are present in 

 some examples. 



d. Small (.16 inch , robust, surface reddish brown, rather coarsely 

 punctured, pubescence rather sparse, elytral band mostly wanting, or 

 existing only in a trace, occasionally well marked. 



e. Yar. Jioridajiu.s. Length .16-.22 inch. Surface reddish brown, 

 antennae annulate, joints spotted with fuscous ; four conspicuous 

 series of black dots on each elytron, punctuation not much finer a 

 little sparser toward apex ; the posterior band is more obtusely angled 

 than usual, but not so much so as in fascicularis, which seems to be 

 scarcely more than a variety of alpha. Taken abundantly by Mr. 

 Schwarz at Bay Biscayne, Florida.] "Ham." 



|j. puiicf atus Hald., 1847 {Amni.sciis), Trans. Am. Phil. Soc. x, 49. 

 Length .">-() mm.; .20-. 25 inch. /Ja6i<a^ — Wisconsin. Canada, New York, New 

 Jei-sey. 



[This differs from alpha chiefly by the absence of the angular line 

 on the elytra, which is replaced by an obscure transverse band of 

 gray.] " Ham." 



[L. rovoatocolliM n. sp. Length 3.5-5 mm. ; .14.20 inch. 



Elongate, narrow, a little depressed, testaceous, pubescence short, fine and in- 

 conspicuous, elytra ornamented ; autennse rufotestaceous, not annulate, twice 

 longer than the body in both sexes ; thorax more than one-half wider than long- 

 evenly rounded on the sides, which are strongly spinose, disc smooth, without 

 tubercles, spots or me<lial line, a round fovea on each side of middle in front of 

 base, some inconspicuous patches of denser white pubescence, punctulation dense. 



TR.\^NS. AM. ENT. SOC. XXIII. .\PRIL. LS»(J. 



