398 RHYNCHOPHORA. \_Mogdalif. 



IMC. violacea, L. (Heydeni, Desbr.). Blue-black, elytra bluish, 

 antennae pitchy red at base ; forehead smooth not punctured ; thorax 

 not transverse, compressed at apex, closely punctured ; scutellum linear ; 

 elytra with punctured striae, interstices distinctly but not very strongly 

 punctured ; the species is very closely allied to the preceding, but may 

 be known by its more robust rostrum, impunctate forehead, and wider 

 strias of the elytra. L. 3-4| mm. 



Male with the antennae inserted on the anterior third part of the 

 rostrum, which is stout, nearly straight, and almost shorter than thorax. 



Female with the antennas inserted a little before middle of rostrum, 

 which is slightly curved and longer than the thorax. 



On pines ; very rare ; introduced by Dr. Sharp in 1871 on the authority of M. 

 Desbrochers des Loges, who stated that he possessed a specimen from England of the 

 species described by him as M. Heydeni, which is now by M. Bedel identified with 

 M. violacea, L. ; it is possible that all our specimens of M . duplicata must be referred 

 to this species. 



IMC. carbonaria, L. (atrata, Gyll.). Black, rather shining, breast 

 with a small spot of white scales on each side ; rostrum about as long as 

 thorax, curved ; thorax subquadrate, but a little longer than broad, 

 compressed at apex, strongly punctured, with the sides denticulate in 

 front ; elytra with deep punctured striae, interstices narrow and convex, 

 very finely strigose transversely ; anterior femora strongly toothed ; size 

 very variable. L. 3|- 6 mm. 



Male with the rostrum almost shorter than thorax, somewhat thickened 

 at apex, antennae inserted at the anterior third part of the rostrum, with 

 a large club, and shorter funiculus. 



Female with the rostrum half as long again as thorax, curved ; antenna3 

 inserted in the middle of the rostrum. 



On Betula alba (birch) ; very local and not common ; Chartley Moss, Staffordshire 

 (W. Garneys) ; Northumberland district (near Gibside ? Bold) ; Scotland, on birch 

 and hazel, rare, Solway, Tay, Dee and Moray districts. 



IMC. armig-era, Fourc. (atramentaria, Marsh. ; aterrima, F.). Black, 

 dull, antennae at base, and tarsi, pitchy ; rostrum rather short and stout, 

 only slightly curved ; forehead very finely punctured ; thorax quadrate, 

 produced on each side at anterior angles into a sharp spinose tooth, 

 finely and rather closely punctured, dull ; elytra more or less dilated 

 behind, with moderate punctured striae, interstices flat, finely coriaceous ; 

 anterior femora with a strong pointed tooth. L. 3-4| mm. 



Male with the antennae inserted at the anterior third part of the 

 rostrum which is stout ; in the female they are inserted at about 

 middle. 



By beating dead hedges, dead twigs, &c. ; according to Bedel it occurs on Ulmus 

 campesiris (the common elm) ; local ; London district, rather common, Norwood, 

 Forest Hill, Ripley, Shirley, Caterham, Belvedere, Dulwich, Lee, Darenth, Dorkiug, 

 Sheerness, Chatham, Whitstable, &c. ; Windsor Forest ; Guestling, near Hastings ; 

 Portsmouth district; Devon; Glanvilles Woottou ; Swansea; Hereford; Knowle ; 



