STENOCHIAD^E — CISTELID.E. 239 



(324) 1. * Arthromacra donacioides. Donacia-Ulte Arthromacra. 



A. ( donacioides J nigro-anea, nitida, supra punctatissima : antennis tarsisque fulvis, illis basi et apice, his apice, nigricantibus. 

 Donacia-like Arthromacra, black-bronzed, glossy ; above thickly punctured : antenna and tarsi tawny ; the former dusky 

 at the base and apex, and the latter at the apex. 



Length of the body 5 lines. 



Taken in Canada, near lake St. Clair, by Dr. Bigsby. I received specimens also 

 from Massachusets from Mr. Drake. 



DESCRIPTION. 



Body black-bronzed witb a greenish tint, glossy, with the whole upper surface thickly and irre- 

 gularly punctured; underneath, except the sides of the trunk, impunctured. Antenna? much longer 

 than the head and prothorax, scape and pedicel dusky, 3 — 8 joints tawny-yellow ; last joint black, 

 downy : prothorax nearly cylindrical ; elytra wider than the prothorax, obtuse at the apex : thighs a 

 little incrassated ; apex of the cubit and tarsi tawny-yellow ; two last joints of the latter dusky. 



This singular insect, at first sight, looks very like a Donacia, a resemblance merely given by its 

 colour. 



Family CISTELIDiE. CisteUdam. 



CXXX. Genus CISTELA. Fab. 



(325) 1. # Cistela erythropa. Red-legged Clstela. 



C. (erythropa) elliptica, nigra, antennis infuscalis basi, pedibusque, rvfis : prothorace postice subirilobo : elytris striatis. 

 Red-legged Cistela, elliptical, black, base of the embrowned antennae and legs, rufous : prothorax posteriorly obsoletely 

 three-lobed : elytra slightly furrowed. 



Length of the body 5 lines. 



Taken in Canada by Dr. Bigsby. 



DESCRIPTION. 



Body elliptical, gloss obscured, especially on the elytra, by very short decumbent hairs. Head 

 longitudinally and slightly impressed between the eyes ; antennae longer than the prothorax, reddish 

 brown, with the three first joints rufous : prothorax transverse, anteriorly not wider than the head, 

 posteriorly obsoletely trilobed, and nearly as wide as the elytra ; lateral angles acute : elytra slightly 

 furrowed ; furrows scarcely punctured : legs pale rufous ; posterior tarsi long, embrowned. 



