OF BRACHELYTRA. 197 



Sp. 6. Cen. gracilis. 



Elongate, almost filiform : black, clothed with a griseous pubescence : 

 head nearly as broad as the thorax; mouth testaceous: thorax 

 quadrate : elytra transverse, very obliquely truncate towards the 

 suture : abdomen four times as long as the elytra, strongly mar- 

 gined and slightly attenuated, with the posterior part of the two 

 last segments fuscous, and the penultimate delicately edged with 

 white : legs and palpi fuscous-black, with the joints lighter : 

 antennae very short, with the articulations equal, black. (Long. 

 Corp. 1| lin.) 



Taken from moss, near Weston; February and March, 1837. 



Genus. — Megacronus, Stephens. 

 Sp. Meg. elegans. 



Slender, rufo-piceous, very shining : head dusky, with the mouth, 

 and a broad streak from thence to the eyes, testaceous : thorax 

 immaculate, rufo-testaceous ; elytra dusky, with the shoulders 

 and apex broadly rufous, with a single punctured stria near the 

 middle, terminating in a fovea at the apex : abdomen nearly twice 

 as long as the elytra, with the apical and posterior margin of the 

 other segments rufous, the extreme edge of the penultimate white : 

 legs testaceous : antennae dusky, with the basal joint alone tes- 

 taceous. (Long. Corp. If lin.) 



Taken at Weston ; 1834. 



Genus. — Mycetoporus, Mannerheim. 



Sp. Myc. brevicornis. 



Head rufous, dusky towards the eyes : thorax narrow in front, bright 

 orange, very shining, with a few scattered punctures : elytra rufo- 

 testaceous, with a dusky spot at the scutellum, and a single deeply 

 punctured stria near the exterior margin : abdomen coarsely punc- 

 tured, black, with the posterior margin of the segments broadly 

 rufous, and the extreme edge of the penultimate white : legs tes- 

 taceous : antennae robust and exceedingly short, dusky, with the 

 base testaceous. (Long. corp. 2 lin.) 



Taken at Weston ; July, 1836. 



Genus. — Tachyporus, Gravenhorst. 



Sp. Tac. formosus. 



Head and thorax bright yellow, very shining : eyes black : elytra 

 punctured, bright yellow, with the base narrowly black : abdomen 



