182 M. W. R. de V. GRAHAM 



Type material. Lamprotatus diffinis Walker. One male (Type Hym. 5. 810), 

 LECTOTYPE, labelled " Amurland. Coll. F. Walker, 1913-71 ", " 142 ", and (in 

 Walker's handwriting) " Lamprotatus diffinis ". 



Lamprotatus curvus Thomson. Syntypes in Moller coll., Goteborg Museum (1 

 specimen) ; and in Thomson coll., Lund (10 specimens). Of the specimens in 

 Thomson's collection, only two bear the correct locality data, the type localities 

 being Tvedora and Dalarne ; from these I select as LECTOTYPE a male labelled 

 " Die alp " [Dalecarlia (= Dalarne) alpina] and " Bhn " [Boheman]. The other 

 specimens are conspecific with it. 



Britain, Ireland, Sweden, Iceland. It occurs commonly upon Salix species 

 (cinerea L., caprea L., aurita L., repens L.) in spring and early summer (imagines 

 Apr-July, the latter month in northern Britain). 



Biology. Unknown. 



Nodisoplata viridipes (Walker) comb. n. 



Lamprotatus viridipes Walker, 1874 : 315, £. 



Type material. One male, LECTOTYPE (Type Hym. 5. 808), bearing a 

 Waterhouse label. 



Asia: Amurland (Walker). 

 Biology. Unknown 



SELADERMA Walker 



Seladerma Walker, 1834 : 2 ^8. Type-species : S. laetum Walker, by designation of Westwood, 



1839 : 70. 

 Seladerma Walker; Westwood, 1839 : 70. 



Isoplata Forster, 1856 : 60, 62, syn.n. Type-species : /. geniculata Forster, by monotypy. 

 Selaoderma Forster, 1856 : 67 [invalid emendation]. 

 Lamprotatus Thomson, 1876a : 221-232 [ex parte]. 

 Seladerma Walker ; Schmiedeknecht, 1909 : 290, 291, [ex parte]. 

 Isoplata Forster ; Schmiedeknecht, 1909 : 364, 365. 

 Isoplata Forster ; Erdos, 1946 : 155-157. 

 Isoplata Forster ; Nikol'skaya, 1952 : 238. 

 Lamprotatus Nikol'skaya, 1952 : 244 [ex parte]. 

 Seladerma Walker ; Nikol'skaya, 1952 : 246. 

 Telepsogos Delucchi, 1955 : 7, 32-46, syn. n. 

 Seladerma Walker ; Delucchi, 1955 : 7, 46-55. 

 Isoplata Forster ; Delucchi, 1955 : 6, 63-66. 

 Isoplata Forster ; Peck et al., 1964 : 34, 38. 

 Seladerma Walker ; Peck et al., 1964 : 38. 

 Telepsogos Delucchi; Peck et al., 1964 : 38. 

 Isoplata Forster; Boucek, 19656 : 549. 



The type-species of Isoplata {geniculata Forster) differs from the species of Telep- 

 sogos in little more than the flattened form of the thorax. This might have been 



