PTEROMALIDAE OF N.W. EUROPE 655 



On 29. ix. 1956 I captured two females in a window of a ferry boat going from the 

 Isle of Wight to Lymington, Hampshire. 



Mesopolobus aequus (Walker) 



Eutelus aequus Walker, 1834 : 364, $. 



Pteromalus purpureus Walker, 1835 : 493, 9. 



Pteromalus contractus Walker, 1836 : 188, $. 



Pteromalus Leogoras Walker, 1839 : 269,^. 



Pteromalus Odites Walker, 1845 : 261, $. 



Pteromalus Temesa Walker, 1848 : 124, 188, <J, syn. n. 



Metastenus purus Walker, 18726 : 118, $. 



Eutelus (Platytermus) decipiens Thomson, 1878 : 77, $. 



Mormoniella oviphaga Ahlberg, 1925 : 82. 



Amblymerus graminum Hardh, 1950 : 88, $ [neco*]- 



Ahlbergiella aequa (Walker) v. Rosen, 1955 : 88-90, q" ?• 



Ahlbergiella aequa (Walker) ; v. Rosen, 1956 : 1-72, [passim]. 



Ahlbergiella aequa (Walker) ; Graham, 19570" : 222-223. 



Mesopolobus aequus (Walker) v. Rosen, 1958 : 230-231, <$ $. 



Mesopolobus aequus (Walker) ; v. Rosen, 1960a : 19-20, <$ $. 



Type material. For synonymy, also designation of lectotypes for most Walker 

 and the Thomson species, see Graham (19570"). Mormoniella oviphaga was synony- 

 mized with [Ahlbergiella] aequa by von Rosen (1955) who had examined the 

 slide-mounted types of oviphaga. M. aequus was redescribed by von Rosen (1958). 



Pteromalus temesa Walker. One male, LECTOTYPE ; Waterhouse label. 



Widely distributed : probably the whole of Europe ; Madeira ; U.S.A. 



Biology. A predator in grasses, feeding on the eggs and larvae of other insects 

 (von Rosen, 1955, 1956) ; also reared from Achillea millefolium L. and Medicago 

 sativa L. (v. Rosen, 1960a : 19). Females pass the winter amongst the foliage of 

 coniferous trees and similar situations ; sometimes they appear on the windows of 

 buildings. 



Mesopolobus nobilis (Walker) 



Platyterma nobile Walker, 1834 : 304, $. 



? Platyterma decorum Walker, 1834 : 342, o* [? nee $]. 



? Platyterma citripes Ashmead, 1896 : 223, $. 



Platyterma nobile Walker ; Graham, 19570" : 221. 



Mesopolobus nobilis (Walker) v. Rosen, 1958 : 212-213, 6" $• 



Mesopolobus nobilis (Walker) ; v. Rosen, 1960a : 33-34, 6* ? [separatum]. 



Mesopolobus nobilis (Walker) ; v. Rosen, 1966 : 82-83, q" $. 



Type material. For synonymy and designation of lectotypes for the above 

 Walker species see Graham (19570'). Platyterma citripes Ashmead was synonymized 

 with nobilis by von Rosen (19590 : 160) after examining a female determined as 

 citripes by Dr. Burks. Ashmead, however, described the female of citripes as 

 having all the funicular segments of the antenna transverse, which does not agree 

 with the female of nobilis. 



