8 M. W. R. de V. GRAHAM 



Types are designated here in nearly all cases where this has not already been done. 

 LECTOTYPE means a present designation ; Lectotype a designation in some 

 previous work. The writer has attached his lectotype label to each type which he 

 has personally designated. Holotype means that the describer either designated 

 one specimen as such or had only one specimen. If neither of these conditions 

 applies but there is a strong presumption that the describer had only one specimen, 

 this is referred to as " ? holotype " or " probably holotype ". Often it is not 

 evident how many specimens of a given species the describer possessed, although 

 his collection now contains only one (e.g., many Walker species). Such a single 

 specimen is not necessarily a holotype, as for instance when the describer gave a 

 size-range or mentioned more than one locality. Where there is any doubt, I have 

 usually designated the single extant specimen as lectotype, provided that it agrees 

 with the description. " Type destroyed " means that definite evidence of this 

 exists. " Type lost " means that, although there is no positive information of its 

 destruction, the type could not be located after extensive search. 



The types of all Walker species are located in the BM(NH) unless the contrary is 

 stated in the text. Most of Walker's original specimens bear a characteristic 

 rectangular label with the generic and specific name followed by the words " Stood 

 under this name in the old B.M. Collection, C. Waterhouse " (on the underside of 

 the label) ; to avoid repetition, this label is referred to as Waterhouse label. 

 Walker probably rearranged his collection 1846-8 and again in i860, and when 

 doing so he transferred some of his species to genera different from those in which 

 he had originally described them ; for example, many Miscogaster species were 

 transferred to Lamprotatus. The Waterhouse labels were added after this, con- 

 sequently they sometimes bear the name of the genus to which the species had been 

 transferred, and not the original one. Walker also synonymized some of his species 

 at later dates (chiefly 1846-8) ; in such cases the Waterhouse label bears anotner 

 species-name. These changes have all been elucidated by reference to Walker's 

 publications and every care has been taken to ensure that the original material has 

 been correctly identified as such. The types of only 23 of Walker's European 

 species are missing, as listed below ; three of them (Pteromalus bryce, P. felginas and 

 Selimnus diores) are not cited in Walker's Lists (1846, 1848) and were certainly 

 returned to de Romand in Geneva (see note under Selimnus diores, p. 149). In the 

 case of types marked * the species cannot be recognized ; the others have either 

 been definitely recognized or else placed with a fair degree of probability. 



Cyrtogaster poesos (1848 : 164, $) 

 Eutelus signatus (1834 : 357> <S) 

 Gastrancistrus alectus (1848 : 158, "<?") 

 Merisus splendidus (1834 : I 67> ?) 

 Meromalus flavicornis (1834 : 178,^) 

 Miscogaster lugubris (1833 : 462, <$) 

 Miscogaster nicaee (1839 : I 97> <S) 

 Miscogaster stygne (1839 : 20I > <$) 

 Miscogaster tenuicornis (1833 : 462, $) 



