Ptenidium.'] clavicornia. 139 



punctures on each side near eye, arranged triangularly), larger eyes, and 

 less rounded sides of thorax, the basal fovcre of which are larger ; the 

 elytra also are more indistinctly punctured and are more narrowed 

 towards apex. L. |-|- mm. 



Very rare ; Gumley, Leicestershire (in moss) ; recorded by Parfitt as very rare in 

 the Exeter districts, and by Murray from Scotland, but these records are very probably 

 erroneous J Ireland (Haliday). 



P. evanescens, Marsh {ajncale, Er. ; terminale, Hal.). Ovate, 

 rather broad, strongly convex, black, very shining, with the apex of 

 elytra broadly ruf'o-testaceous, sparingly clothed with rather long silvery 

 hairs; head moderate, eyes rather large, prominent, antennae long, clear 

 yellow, with the club more or less fuscous; thorax rather short, broadest 

 behind middle, with four obsolete fovcte near base, sometimes scarcely 

 visible, and two near anterior margin, and also a transverse impression 

 near posterior angles, Avhich are obtuse; disc remotely and obsoletely 

 l)unctured; scutellum moderate, with three punctures at base; elytra 

 ovate, very convex, broadest a little before middle, narrowed to apex, 

 Avith rows of shallow and rather remote punctures ; legs rather long, 

 clear yellow, basal joints of all the tarsi slightly dilated ; under-side 

 l)lack, shining, with the coxa; yellow, and the mouth, and sometimes 

 abdomen, lighter. L. 1-1| mm. 



In cut grass, vegetable and haystack refuse, hot-beds, &c. ; common and generally 



distributed. 



P. atomaroides, IMots. Oblong oval, very convex and shining, 

 sparingly clothed with very shoit greyish hairs, deep black, with the 

 extreme apex of elytra lighter; head rather small, with four rather large 

 punctures near each eye, eyes moderate, not prominent, antennas long 

 and slender, clear yellow ; thorax small, transverse, broadest near 

 middle, sides slightly rounded, with four obsolete impressions at base, 

 disc feebly punctured ; scutellum moderate, with two impressions near 

 7niddle ; elytra large and ample, obtuse-oval, broadest at middle, with 

 rather large, shallow, more or less irregular punctures; legs long and 

 slender, clear yellow, tDnse slightly dilated at apex. L. 1-1 1 mm. 



In flood refuse, on the banks of rivers, &c. ; local but not rare in the London 

 district; Egham, Waltou-on-Thames, and VVeybridge, Surrey; Staines; bunbury ; 

 Brandon, Sutfolk. 



This species is easily distinguished from P. evavescens, to Avhich it is 

 allied, by its smaller head and thorax, and much longer and broader 

 elytra, as well as by its sculpture. 



P. IVankowiezii, Matth. {intermedium, Wank.). This species is 

 very closely allied to P. evanescens, and hardly requires a separate de- 

 scription ; it may be distinguished from that species by its somewhat 

 narrower form, more distinct sculpture, and rather smaller thorax, 

 which has the sides less dilated, and the basal fovese more distinctly 



