PTINID^. — CIS. 347 



Taken near London, in June ; apparently rather scarce. 



Sp. 11. nitidus. Piceus, nitidus, glaber, antennis pedibusque testaceis, thorace 

 aequali, antics subsinuato, elytris obsoletius vagi punctatis. (Long. corp. 1 lin.) 

 An. nitidum. Fabricius. — Cis nitidus. Steph. Catal. 143. No. 1449. 



Piceous, shining, glabrous : thorax equal, punctate, somewhat sinuated anteriorly, 

 with the sides and posterior edge slightly margined : elytra not broader than 

 the thorax, very convex, glabrous, rather coarsely and irregularly punctate : 

 legs and antennae pale ferruginous or testaceous. 



Sometimes of a pale ferruginous, with the elytra darker ; or castaneous, or rufo- 

 ferruginous, or pale testaceous, evidently arising from its state of maturity. 



Very abundant in Boleti, on old trees in June, throughout the 

 metropolitan district. 



Sp. 12. fronticornis. Brevis, convexus, rufo-piceus, albido pilosus, thorace sub- 

 tilissime, elytris fortius confertim vage punctatis, pedibus totis rufo-testaceis. 

 (Long. corp. f lin.) 



Apate fronticornis. Panzer. — Cis fronticornis. Steph. Catal. 143. JVo. 1450. 



Short, convex, rufo-piceous, clothed with a whitish down : the thorax above very 

 convex, the anterior margin bisinuated, the disc finely punctured: elytra 

 coarsely but irregularly punctured, the apex rather testaceous : legs entirely 

 rufo-testaceous : antennae pale, with the capitulum rather obscure. Male with 

 the head bituberculate. 



Rather scarce : I have taken the insect in Suffolk in September, 

 and^near Ripley in July, 1827. 



Sp. 13. bidentatus. Nigro-piceus, subnitidus, fere glaber, valde convexus, thorace 

 elytrisque concinne punctatis, antennis pedibusque rufo-testaceis. (Long, 

 corp. 1 — \\ lin.) 



Pt. bidentatus. Marsham.-— Cis bidentatus. Steph. Catal. 143. No. 1451. 



Pitchy-black, slightly shining, and nearly glabrous, very convex : thorax deeply 

 bisinuated anteriorly, the middle lobe prominent, and forming two hornlike 

 processes in the male, the disc finely punctate : elytra as broad as the thorax, 

 with the shoulders rounded, the disc thickly and finely punctured : antenna? 

 and legs pale rufo-testaceous. Male with two erect acuminated spines on the 

 head. 



Variable in colour, like the rest of the genus. 



Found gregariously in Boleti, during the months of June and 

 July, in the vicinity of London, but rather local : I have found it 



