PTEROMALIDAE OF N.W. EUROPE 233 



Xestomnaster mirificus Delucchi, 1955 : 3 2 > ?• 

 Xestomnaster smaragdus Delucchi, 1955 : 32, <j>. 

 Xestomnaster parkeri Delucchi, 1955 : 32, $. 



Type material. Lamprotatus chrysochlorns Walker. In the BM(NH) there are 

 3 specimens under this name but they are clearly the syntypes of Miscogaster 

 chrysochlora Walker, 1833 ; the two species-names evidently having been confused. 

 In Haliday's collection there is a female (No. 796) labelled " chrysochlorus " ; it 

 agrees with the description and is designated LECTOTYPE of Lamprotatus 

 chrysochlorus Walker, 1846. 



The differences said by Delucchi (1955 : 32) to exist between his mirificus, parkeri, 

 and smaragdus do not work out consistently ; I believe these all represent forms of 

 one species, chrysochlorus (Walker). 



Britain, Ireland, Germany. Not uncommon in Britain. 



Biology. Reared in Germany as parasite of Trypeta zoe Mg. on Adenostyles 

 (Delucchi, 1953a : 207) ; reared from Acidia cognata (Wied.) in England {A. H. 

 Hamm) ; and from a Dipteron (possibly Phytomyza atricornis Mg.) (R. R. Askew). 

 Imagines chiefly June-July, occasionally also Sept.-Oct. 



Xestomnaster mazares (Walker) comb. n. 



Seladerma Mazares Walker, 1844 : 337, <J $. 

 Selaoderma Mazares Walker ; Forster, 1856 : 67, <$. 



Syntypes, 1 (J, 1 $. LECTOTYPE $ (Type Hym. 5. 793b). 



Norway, Alten (type locality) ; Ireland (new record), South Kerry, Caragh 

 Lake, 1 <J, 17.ix.1953 (R. C. Faris). There is a female, without locality data (but 

 probably from near Edinburgh or else Northumberland) in the Greville collection 

 (Royal Scottish Museum, Edinburgh). 



Biology. Unknown. 



LAMPROTATUS Westwood 

 Lamprotatus Westwood, 1833 : 121. Type-species : L. splendens Westwood, by monotypy. 



Lamprotatus Westwood 

 Lamprotatus Westwood 

 Lamprotatus Westwood 

 Lamprotatus Westwood 

 Lamprotatus Westwood 



Thomson, 1876a : 221, [ex parte]. 

 Schmiedeknecht, 1909 : 291, 292-294, [ex parte]. 

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

 Delucchi, 1955 : 7, 8-20. 

 Peck et al., 1964 : 38. 



Key to North-west European Species 



(Females) 



Antenna with length of flagellum, not counting the pedicellus, not or only just 

 equal to breadth of head ; sixth funicular segment subquadrate or even 

 very slightly transverse. Gastral petiole without, or with only a weak, 

 transverse crest ........... 



