EUURA FLAVIPES. 211 



This species forms large woody galls on the shoots 

 of willows, principally Salix pentandra. The galls 

 vary in size from that of a pea to a walnut ; may be 

 roundish, oval, or very irregular. Several larvae live 

 in a gall. They are greyish-green, the head brownish, 

 darker on the top. At the last moult they become 

 slate coloured, and spin thin cocoons in the gall. 



The galls are formed in June, but the imagos do 

 not make their appearance till the following summer. 

 The species is somewhat local, and often covers a tree 

 with its galls. I have seen willows killed owing to 

 every twig having one or more galls on it. 



'Pimpla vesicaria, Rtz. ; Limneria multicincta, Gr. ; 

 Eurytoma solids, Thorns. ; E. aciculata, Rtz., are para- 

 sites. Several .other Chalcididce and Oxyura have also 

 been reported, but they prey rather on the Aphides 

 and other insects which live in the galls. 



Local, but widely distributed. 



Continental distribution: Sweden, Germany, France, 

 Italy. 



2. EuuftA FLAVIPES, sp. nov. 

 PL XXVI, fig. 9, Saw. 



Black, shining ; labrum, mandibles (except at the apex, winch is 

 piceous), tegulee, the edge of pronotum close to them, and legs, whitish- 

 yellow; the base of coxae black, the femora in the middle, the apex of 

 hind tibiae and tarsi, fuscous ; the ventral surface of the abdomen in the 

 middle, and cerci, whitish. Cerci short, not projecting beyond the apex 

 of the abdomen, not double the length of the posterior spurs. Wings 

 hyaline, apical half of stigma fuscous, basal white. 



What I take to be the <J has the face from below the antennae white, 

 the orbits behind brownish, the antennas have the apex and lower side 

 of the flagellum reddish, the femora have more black and the stigma is 

 fuscous. 



Length 2 lines. 



The very short (for Euura) cerci readily distinguish 

 this species. 



Rare : Rannoch, Clydesdale. 



