Dnacia.] PHYTOPHAGA. -7" 



On aquatic plants Typ^t Spzrganiuin, Carex, Ac., in June and July ; local, an<l, 

 as a rule, not common ; Lewiaham, Wnndsworth, Surrey Canal, Croydon, Tilgate; 

 Pegwell Buy ; Deal ; Sandwich ; Hastings ; Faygate, Sussex ; Droitwich ; Cheshire ; 

 Manchester; Northumberland and Durham district; Scotland, very rare, Clyde and 

 Forth districts ; Ireland, Armagh. 



D. clavipea, F. (mcnyanfhidis, Gyll. ; mutica, Thorns.). A largo 

 and very distinct species, which may be easily known by the shape 

 and sculpture of the thorax, which has the anterior angles rounded, 

 and is gradually narrowed from just behind front margin to base, and 

 has the upper surface very shining, transversely strigose with the 

 disc often almost smooth ; the general form is elongate, moderately 

 convex, gradually narrowed behind in male, which is smaller than 

 female ; the colour of the upper surface is bright golden green, rarely 

 coppery, and the antennae and legs are ferruginous, the latter being 

 partly metallic ; the under-side is silvery ; the elytra are deeply crenate- 

 striate, with the interstices rugose, and the apices are separately 

 rounded ; the femora are simple in both sexes. L. 7-12 mm.' 



Male with the fifth ventral segment subtruncate at apex, female with 

 the same segment somewhat produced. 



On aquatic plants, in May and June ; local ; Surrey Cunal, Woking, and other places 

 in the London district; Potter Heigham, Norfolk; Whitstable ; Hastings; Arnndel ; 

 Portsmouth district; Swansea; B.irinouth ; \Vhittlesea Mere; Burton-on-Trent ; 

 Manchester district (on Arundo phragmitet) ; Scotland, rare, Solway and Forth 

 districts ; it probably occurs in many other localities, as it is widely distributed. 



D. semicuprea, Panz. (simplex, F., Syst. EL ; ms, Westh.). A 

 rather short species and comparatively broad and convex, of a greenish- 

 coppery or golden-green colour, occasionally green with a purplish band 

 on each elytron, and rarely nigro-aeneous, under-side silvery ; male much 

 narrower than female ; head finely and thickly punctured, antennae dark 

 brown or blackish, with the base of the first joint sometimes lighter ; 

 thorax longer than broad, gradually narrowed behind, thickly and 

 strongly punctured, with the central furrow variable, sometimes broad 

 and deep, at other times obsolete ; elytra widest about middle, obso- 

 letely impressed, crenate-striate, with the interstices rugose, obtusely 

 truncate at apex, but with the external angles rounded ; legs rather 

 long, metallic, with the base of femora and the tibiae towards apex 

 pitchy red ; posterior femora simple in both sexes. L. 5-9 mm. 



Male with the first ventral segment of abdomen broadly impressed 

 longitudinally in the middle, and the fifth subtruncate at apex ; female 

 with the first ventral segment even, and the fifth somewhat produced at 

 apex. 



On aquatic plants in May and June ; local ; London district, not uncommon and 

 widely distributed ; Hastings ; Sandwich ; Pulborough, Sussex ; Dover ; Devon ; 

 Bristol: Swansea; Knowle ; Raiubam, Norfolk; Hertford; Kss x ; Oxford (K. 

 Isis) ; Lincoln ; Selby, York ; Scotland, rare, Forth district, " Braid Ponds, Loch 

 Leven," Murray's Cat. Ireland, Annngh. 



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