PTEROMALIDAE OF N.W. EUROPE 723 



Type material. Pteromalus conifer Walker. Syntypes, 3 $. LECTOTYPE, 

 the first specimen, bearing a Waterhouse label ; it is unusually large and has the 

 first funicular segment about 1 -6 times as long as broad. 



Pteromalus laticornis Walker. Syntypes, 1 $, 2 <J. LECTOTYPE, a $ ; Water- 

 house label. 



Pteromalus exilis Forster. One female, LECTOTYPE, in Naturhistorisches 

 Museum, Vienna ; it is card-pointed and labelled " Collect. G. Mayr " ; " Tr. exilis 

 Forster Type " ; and, in Forster's handwriting, " exilis m.". The redescription 

 of exilis in Delucchi & Graham (1956 : 564-565) applies well to smaller females of 

 conifer, except that the propodeum is said to be slightly more than half as long as 

 the scutellum. In spite of this exilis may be identical with conifer. However, I 

 have not been able to re-examine the lectotype of exilis and therefore only cite it 

 as a possible synonym of conifer. 



Redescription ($). — Head, thorax, and basal tergite of gaster green to bronze-green ; re- 

 mainder of gaster purplish black with at most a few greenish flecks. Antennal scape, except 

 sometimes its tip, and legs except mid and hind coxae and the fore coxae externally or wholly, 

 reddish testaceous. Length 17-2 mm. 



Head very broad, 1-25— 1-31 times as broad as the mesoscutum, in dorsal view 2-05-2-15 

 times as broad as long ; temples one quarter length of eyes or somewhat more. Antennal 

 scape not reaching the median ocellus; combined length of pedicellus and flagellum nearly 

 equal to breadth of head ; pedicellus in profile nearly twice as long as broad ; flagellum moder- 

 ately clavate, proximally slightly stouter than the pedicellus ; first funicular segment from 

 slightly shorter than, to slightly longer than, the pedicellus, 1-2-1-6 times as long as broad, 

 second segment at least slightly shorter than the first, subquadrate, distal segments slightly 

 transverse ; sensilla fairly numerous, in one row on each of the segments except sometimes the 

 first, which has two rows in large specimens. 



Thorax squat, 1-35-1-45 times as long as broad. Pronotal collar, medially, one ninth to one 

 seventh as long as the mesoscutum, the latter about 1-9 times as broad as long. Scutellar 

 frenum with coarse reticulation. Propodeum medially somewhat less than half as long as the 

 scutellum ; median area 1-6-1-85 times as broad as long ; costula present, sometimes very 

 strong ; panels of median area shiny, smooth or weakly wrinkled, often with a few longitudinal 

 costulae at the base ; nucha marked off by a deep constriction, occupying about half the 

 median length of the propodeum, with rather coarse raised reticulation ; spiracles oval ; 

 callus with only moderately dense pilosity. Fore wing with basal cell virtually bare ; basal 

 vein pilose throughout ; speculum open below ; disc beyond speculum quite densely pilose ; 

 marginal vein 1-55-1-75 times as long as the stigmal vein ; postmarginal vein slightly shorter 

 than the marginal. 



Gaster conic-ovate, broadest near the base, acutely pointed apically, 1-9-2-1 times as long as 

 broad, nearly as long as head plus thorax ; dorsal surface often convex, sometimes slightly 

 sunken ; hind margin of basal tergite nearly straight. 



Britain : " Found near London " (Walker, 1836 : 484) ; Oxfordshire, Bald Hill, 

 near Lewknor, 1 £> 18. vi. 1958 (Graham) ; unlocalized, 2 $ (certainly Walker 

 specimens) in the Dale collection, Oxford. ? Germany : ? type of exilis (Forster). 



Biology. Unknown. 



Trichomalus flagellaris sp. n. 



(Text-figs. 583, 588) 



$. Body greenish with bronze reflections on the mesoscutum and scutellum ; pleura of 

 thorax more bluish ; middle tergites of gaster with faint purplish transverse fasciae. Antennae 



