PTEROMALIDAE OF N.W. EUROPE 525 



Biology. I have examined a female which is said to have been reared, England, 

 Surrey, Ashtead Common, n.v.1946 (M. Niblett) from Trypeta [—Orellia] ruficanda 

 F. on Cirsium palustre (L.) Scop. Imagines have been captured in the field in 

 May, June, and September. 



Habrocytus sp. indet. A 



England : Oxfordshire, near Oxford, 1 $ reared from pupa on Knapweed 

 (Centaurea sp.), 2.VL1919 (A. H. Hamm), Hope Dept., University Museum, Oxford. 



Habrocytus vibulenus (Walker) comb. n. 



Ormocerus Vibulenus Walker, 1839 : 205, (J. 



Habrocytus blunckii (Nowicky MS.) Blunck, 1944 : 480, <$ $, syn. n. 



Habrocytus sp. (Arbeitsnummer Chalc. 36), Blunck, 1944 : 485, $ $. 



Type material. Ormocerus vibulenus Walker. Syntypes, 2 <J. LECTOTYPE, 

 the second specimen ; Waterhouse label. 



Habrocytus blunckii Blunck. Syntypes, 2 $, 4 (J, in Naturhistorisches Museum, 

 Vienna. LECTOTYPE, a female labelled " Habrocytus sp " and " 42/226 B2. 13. 

 12. 42 Ch. 36 ". I presume that the name is valid. The species was actually 

 described as " Habrocytus sp." by Blunck (1944 : 485), though in the same paper 

 (p. 480) the name H. blunckii Nowicky is mentioned and seems to refer to the 

 species described on page 485. 



Britain, Ireland, Germany, Czechoslovakia. 



Biology. Reared in Germany (under the name blunckii) as a hyperparasite of 

 Pieris brassicae (L.) through Apanteles glomeratus (L.) ; see Blunck, 1944. I have 

 also examined the following specimens reared in England : — 1 $, emerged vii.1931 

 from Salebria obductella F.R., Kent, reared (H. C. Huggins). Cambridgeshire, The 

 Devil's Dyke, 2 $ reared from flower-heads of Centaurea nemoralis Jord., on 21. vi. 

 1932 and viii.1935, the latter specimen being labelled " on Euxanthis " [Lep., 

 Tortricidae] ; 2 $ reared 31.V.1934 from heads of Centaurea scabiosa L. (G. C. 

 Varley). Berkshire, Cothill, 1 $ reared 12. vi. 1957 from Isocolus rogenhoferi Wachtl 

 (M. F. Claridge). Berkshire, Cumnor Hill, 3 $ from cocoons of Zygaena filipendulae 

 (L.), July 1943 (G. D. H. Carpenter) ; this is the species recorded doubtfully as 

 Habrocytus trypetae Thomson by Carpenter (1945 : 282-283). Imagines appear in 

 the field most often from July until September (some in June or even May). 



Habrocytus rhinthon (Walker) comb. n. 



Pteromalus Rhinthon Walker, 1844a : 341, $?• 



Type material. One female LECTOTYPE, Waterhouse label. 



Norway (Finmark). 

 Biology. Unknown. 



