Sprague.J 380 [January 27, 



any genus, but for the want of a better place I have left it where 

 LeConte placed it. 



Elater basalis Rand. (Bost. Journ. Nat. Hist., Vol. n, p. 9.) 



" E. corpore sub-dilatato ; capite nigro, antennis serratis, rufo-piceis ; thorace 

 nigro, punctulato, angulis anticis capite non latioribus, posticis sub-acutis, scu- 

 tello ovato, nigro ; ely tris striatis, punctulatis, basi rufo-sanguineis. 



" Body somewhat dilated : head black : antennae light piceous, sub- 

 convex, broadest at base, punctured, a little hairy, without any 

 median furrow ; margin gradually curved toward the anterior angles, 

 which are no wider than the head ; posterior angles sub-acute and 

 nearly straight ; scutel ovate, 6 black, striate, punctured : elytra, sub- 

 basal and humeral regions rufo-sanguineous: body beneath black, 

 punctured: feet piceous. 



"Length from three tenths to four tenths of an inch. 



"Appears allied to the bimaculatus of Europe, and to the geminatus 

 of Say. Not very frequent." 



Elater macilentus Rand. (Bost. Journ. Nat. Hist., Vol. n, 

 p. 13.) 



U E. corpore angustato, subtus rufo-piceo; antennis nigro-piceis, villosis, capite 

 dense punctulato; thorace sub-depresso, sub-elongato, marginibus subrectis, 

 angulis posticis acutis; ely tris sub -fuscis, leviter striatis, et punctulatis; pedi- 

 bus rufo-piceis. 



" Body slender, beneath reddish piceous, especially on the breast : 

 antenna? blackish piceous, hairy, third and fourth joints subequal: 

 head densely punctured : thorax inconspicuously punctured, some- 

 what flattened, with very short hairs ; length one half greater than 

 breadth; margins nearly straight; posterior angles acute: scutel 

 ovate, darker than the elytra, which are light brownish, universally 

 and minutely punctured ; striae shallow: feet reddish piceous. 



" Length more than seven twentieths of an inch. 



" Inhabits Blue Mountains, June." 



Of this I can give no guess. 



Malachius coeruleus Rand. (Bost. Journ. Nat. Hist., Vol. u 

 p. 16.) 



'" M. capite nigro, polito, labro testaceo, antice macula nigra; antennis nigris; 

 thorace elytrisque ca^ruleis, tibiis quatuor anticis testaceis, duobus posticis 

 nigris. 



" Head black, polished : labrum testaceous, with a black spot before : 

 antennae black, base piceous underneath: thorax and elytra blue: 

 four anterior tibiae testaceous, two posterior black. 



