ELATERIDiE. 149 



(199) 3. * Perimecus similis. Similar Perimecus. 



P. ( similis J niyer, pubescens; antennis pedibusque fulvis : prothorace parcius punctate, hand canaliculuto: elytris puncto-slrialis. 

 Similar Perimecus, black, downy : antennae and legs tawny: prothorax less thickly punctured and not channelled : elytra 

 with larger punctures in rows. 



Length of the body 6| lines. 



Taken in Lat. 54°. 



DESCRIPTION. 



I should have given this as merely a variety of the last ; but besides its blacker body, the punc- 

 tures of the prothorax are not nearly so numerous, and there is no appearance of its being channelled : 

 the breast is chestnut. 



LXXX. Genus CTENICERUS. Lat. 



(200) 1. * Ctenicerus Kendalli. Kendall's Ctenicerus. 



C. I KendaRi) niger ; f route impressa ; prothorace canaliculate : elytris testaceis apice litura intermedia nigra ; pedibus piceis. 

 Kendall's Ctenicerus, black, front impressed : prothorax channelled ; elytra testaceous, at the apex with an intermediate 

 black blotch ; legs piceous. 



PLATE II, FIG. 7. 



Length of the body 7 lines. 



A single specimen taken in Lat. 65°. 



DESCRIPTION. 



Body black, thickly punctured ; gloss obscured by inconspicuous hairs. Head with two impres- 

 sions between the eyes ; nose subemarginate ; antennas shorter than the prothorax, serrated: prothorax 

 longer than wide, channelled, posterior angles diverging, very acute, carinated : scutellum suboval, 

 covered with white hairs : elytra rather wider than the prothorax, testaceous with a black discoidal 

 blotch at the tip ; slightly furrowed with punctures in the furrows ; interstices punctured : legs piceous. 



This species, which is a female, is related to Ct. cupreus, but is much wider in proportion to its 

 length. 



LXXXI. Genus ELATER. Linn, 

 xiii. * Subgenus Aphotistijs. Kirb. 



This subgenus differs from the type, (E. noctilucus, &c.) principally in the absence 

 of the phosphoric spot in the prothorax, &c. The antennae are not so compressed 

 and less distinctly serrated. Elater ceneus Linn, may be regarded as the type of 

 this subgenus of which Mr. Marsham's E. impressus is regarded as a variety ; but 

 I think it distinct, and the true E. impressus of Fabricius. There are types of 

 several other subgenera that may be regarded as belonging to Elater, as E. murinus, 

 sanguineus, &c. 



