4 L. MASNER 



The location of certain old collections is known and we can presume that they 

 contain types. This is true of the Forster, Haliday, Thomson, Walker and West- 

 wood collections. Unfortunately, most of the European species were described by 

 Kieffer and it is known that he did not keep any special private collection. His 

 types are deposited, unrecognised, in many museums and a good deal of work is 

 needed to recover them and establish their validity. 



The importance of studying types is becoming more and more necessary, parti- 

 cularly in groups that are insufficiently known from the taxonomic point of view. 

 It is obvious that the primary task is to recognise, revise and establish the "old" 

 species rather than describe new ones. To achieve this aim, the first step is to make 

 lists of types available for all students. I agree with the conclusions of Kerrich 

 (i960) concerning the state of our knowledge of the parasitic Hymenoptera but am 

 convinced that the problem of types is of the greatest importance for the essential 

 improvement of the taxonomy of this group of insects. 



INTRODUCTION 



During the autumn of 1961 I had the opportunity of working in the British 

 Museum (Nat. Hist.) and the Hope Department of Entomology at Oxford. These 

 institutions, especially the first, possess a considerable number of types of Procto- 

 trupoidea. In London I found many Kieffer types of hitherto unknown location. 

 My aim was to examine the whole of the material at my disposal and to publish a 

 list of the types it contained. There were, of course, various difficulties to overcome, 

 particularly with regard to the selection of lectotypes, since most of the species 

 were represented only by syntypes. 



Because of the regular exchange of material between Walker and Haliday, the 

 types of some of Walker's species are now in the Haliday collection. This refers to 

 species of Telenomus and Teleas (=Trimorus Forster) described by him as well as to 

 a few species of Platygasteridae. 



Since Haliday's collection was not examined by me in its entirety but is now being 

 studied by M. R. W. de V. Graham, I have preferred not to include in the present 

 list the types contained in this collection ; a list of them will be published later by 

 Dr. Graham. 



Altogether, the types of 780 species have been examined : 24 of Proctrupidae, 

 76 of Ceraphronidae, 256 of Diapriidae, 341 of Scelionidae and 84 of Platygasteridae. 

 Genera and species are arranged alphabetically. 



In the collections of the British Museum I found certain specimens marked as 

 types. Since these "types" represent nothing but MS names, they are omitted 

 from the present list. 



This paper is not a mere list of types but includes also various nomenclatorial 

 changes as well as other data considered to be useful. Several genera and many 

 species were wrongly placed systematically. The reader will therefore find many 

 new combinations, much synonymy and various new names. For each holotype 

 (or paratypes if the species is represented only by these), I quote full data as given 

 on the labels attached to the specimen. The number of paratypes and the state of 



