PTEROMALIDAE OF N.W. EUROPE 731 



Type material. Pteromalus apertus Walker. Lectotype designated by Graham 

 (19566 : 250). In the same paper P. affinis Walker was synonymized with apertus ; 

 this was a mistake, the lectotype being a female of Trichomalus inscitus (q.v.). 



Pteromalus alopius Walker. One male, LECTOTYPE, bearing a Waterhouse 

 label. It might belong to apertus. 



Trichomalus palustris Erdos. Holotype $, Hungary, Gardony (Velencei-to), 

 24.vii.1952, from Phragmites communis Trin. [Erdos) in coll. Erdos (not seen by the 

 writer). From the description and figures it would appear to be near apertus 

 (Walker). 



Britain, apparently rare ; ? Hungary. 



Biology. Unknown. Imagines captured in the field during August ; females 

 also in winter, I have twice taken them hibernating amongst foliage of Cupressus sp. 



Trichomalus curtus (Walker) comb. n. 

 Pteromalus curtus Walker, 1835 : 490, $. 



Type material. One female, which is accepted as TYPE ; it bears a Waterhouse 

 label. 



This appears to be a valid species of Trichomalus, but as I have no other material 

 which fits the type and therefore cannot check some of the characters, it is not 

 included in my key to species. It has the median area of the propodeum shiny and 

 nearly smooth, and in this and several other characters much resembles the female 

 of apertus (Walker) ; but it differs from that in having a shorter pedicellus more 

 like that of perfectus (Walker). 



Britain. 



Biology. Unknown. 



Trichomalus helvipes (Walker) 



Eutelus helvipes Walker, 1834 : 365, $. 



Pteromalus cuprinus Walker, 1835 : 489, $. 



Pteromalus obtusus Walker, 1835 : 490, $. 



Pteromalus futilis Walker, 1835 : 496, $. 



Pteromalus famulus Walker, 1835 : 496, ?. 



Pteromalus perpetuus Walker, 1835 : 497, $. 



Pteromalus detritus Walker, 1835 : 499, $. 



Pteromalus chrysammos Walker, 1836 : 487, ?. 



? Pteromalus Saptine Walker, 1839 : 224, <$. 



Pteromalus Crocale Walker, 1839 : 239, <$. 



Pteromalus Janira Walker, 1839 : 248, <$. 



Pteromalus peregrinus Forster, 1841 : 11, ?. 



Pteromalus lethargicus Forster, 1841 : 13, $. 



Pteromalus quaesitus Forster, 1841 : 13, $. 



Pteromalus delectus Forster, 1841 : 26, $. 



Pteromalus Mese Walker, 1848 : 124, 184, o*- 



Pteromalus Lebadeia Walker, 1848 : 125, 189-190, $, syn. n. 



