PTEROMALIDAE OF N.W. EUROPE 753 



basal cell of the fore wing, the testaceous ovipositor sheaths, and almost circular 

 gaster. 



Holotype 9- Ireland : Co. Wicklow, Powerscourt, 3.VL1937, bred from a 

 cocoon of Anoplins nigerrimus (Scop.), (Hym., Pompilidae) (A. W. Stelfox), in 

 Hope Department, University Museum, Oxford. 



Paratypes. Same data as holotype, 8 $ ; Scotland : Mid Perth, Killin, 1 $, 

 7.vii.ig52, swept from herbage near the River Tay (Graham), in Hope Department 

 and Graham collections. 



Eupteromalus fucicola (Walker) 

 (Text-fig. 627) 



Pteromalus fucicola Walker, 1835 : 194-195, q* $. 

 Eupteromalus fucicola (Walker) Graham, 19566 : 255-256, 0* $. 



Type material. Lectotype female designated by Graham (19566 : 255). 



This species should be recognizable by the dark colour of the body and legs, low 

 insertion of the antennae, quadridentate mandibles, and its habitat. The funicular 

 segments of the antennae vary somewhat in proportions ; especially the first segment, 

 which may be as long as the second, quadrate, and provided with sensilla, or 

 distinctly shorter than the second, sometimes virtually anelliform. The latter 

 condition occurs in small specimens. The wings vary considerably in size. In the 

 female they are usually large, but occasionally somewhat shortened and narrower 

 than usual. In the male they are usually more or less abbreviated and narrow. 

 The length of the marginal vein of the fore wing varies considerably relative to that 

 of the stigmal vein ; sometimes the fore wing is hyaline, sometimes infumate discally. 



Britain, Ireland ; widely distributed on the coast, associated with seaweed 

 (Fucus sp.). 



Biology. Host unknown, but possibly some Dipteron. Females crawl about in 

 masses of rotting Fucus at high- water mark, occasionally wandering over adjacent 

 rocks or sand. Males occur in the same situations ; during spells of bright sunshine 

 I have several times seen them running over rocks by the shore. They jump 

 briskly, but most specimens do not seem able to fly. Imagines from end of June 

 until September (occasionally into October). 



Euteromalus albopilosus sp. n. 



(Text-fig. 631) 



$. Body with bronze and bluish reflections. Mandibles reddish with darker teeth. Anten- 

 nae blackish, the scape reddish at the base. Coxae concolorous with the thorax ; legs otherwise 

 rust reddish with the knees rather paler ; the femora and tibiae banded more or less broadly 

 with fuscous, sometimes mainly dark, the fore tarsi and tips of the mid and hind tarsi fuscous. 

 Tegulae fusco-testaceous ; wings subhyaline, venation brownish testaceous. Propodeal callus 

 densely covered with silvery white hairs. Length 1 -9-2 -5 mm. 



Head in dorsal view similar to that of acuminatus sp. n. (Text-fig. 624) but with frons slightly 



