724 M. W. R. de V. GRAHAM 



black ; scape, and pedicellus beneath, reddish. Coxae concolorous with thorax ; rest of legs 

 reddish, the knees and tarsi slightly paler ; tarsi brownish apically. Wings subhyaline ; 

 venation testaceous. Length 2-75 mm. 



Head in dorsal view about twice as broad as long, with temples converging moderately 

 strongly, rather straight, slightly more than one-third as long as eyes ; POL 1 35 OOL. Eyes 

 relatively large, separated by only 1-3 times their length. Malar space slightly more than one 

 third the length of an eye. Clypeus strigose, the striae extending some way up the face and 

 genae, its anterior margin slightly emarginate medially. Head finely reticulate, the frons more 

 coarsely so. Antennae (Text-fig. 588) very characteristic : toruli placed well above level of 

 ventral edge of eyes, and hardly nearer to the anterior margin of the clypeus than to the median 

 ocellus ; scape not quite reaching level of vertex ; combined length of pedicellus and flagellum 

 not quite equal to breadth of head ; pedicellus about twice as long as broad, slightly shorter 

 than the first funicular segment ; flagellum stout, subfusiform ; first funicular segment much 

 stouter than the pedicellus, constricted proximally much as in some Arthrolytus species, about 

 i-6 times as long as broad, with a row of sensilla in its distal third ; second segment hardly 

 transverse, the following segments distinctly so, each with a row of sensilla in its distal part ; 

 clava hardly twice as long as broad, nearly as long as the three preceding funicular segments 

 together. 



Thorax about i-6 times as long as broad. Pronotal collar, medially, rather more than one 

 sixth as long as the mesoscutum. Mesoscutum nearly twice as broad as long. Scutellum 

 about as broad as long. Propodeum medially about two thirds as long as the scutellum and 

 produced well beyond the bases of the hind coxae ; median area (Text-fig. 583) about 1-3 

 times as broad as long ; median carina distinct ; panels of median area shiny, with only traces 

 of weak sculpture, but traversed by a distinct costula which is angulate medially ; nucha 

 occupying slightly more than one third the median length of the propodeum, convex, strongly 

 reticulate ; callus, except around the spiracle, thickly pilose. Hind coxae thickly pilose 

 dorsally. Fore wing with basal cell bare, open below ; basal vein pilose ; speculum open 

 below ; surface beyond the speculum rather thickly pilose ; marginal vein i-6 times as long as 

 the stigmal vein and 1-15 times as long as the postmarginal vein. 



Gaster lanceolate, slightly acuminate, about as long as head plus thorax, about 2-2 times as 

 long as broad ; last tergite slightly longer than its basal breadth ; basal tergite with a con- 

 spicuous patch of whitish hairs at base laterally, its hind margin slightly curved and entire. 



o*. Unknown. 



Holotype $. England : Berkshire, Wytham Wood, 24.viii.1952 (Graham), in 

 Graham collection. 



Closely resembles the female of conifer (Walker) from which it differs mainly in 

 the much less transverse median area of the propodeum, in its rather longer pronotal 

 collar, and slightly longer gaster. 



Biology. Unknown. 



Trichomalus rugosus Delucchi & Graham 



Trichomalus rugosus Delucchi & Graham, 1956 : 548, 555-556, $. 



Type material. Holotype $. Leitha-Au, Vimpacs, lower Austria, 27.vi.1951 

 (Ruschka), in Naturhistorisches Museum, Vienna. 



Britain ; Austria ; apparently rare. New record : England, Berkshire, Wytham 

 Wood, 3 $, 27.viii.1952 (Graham). 



Biology. Unknown. Imagines in June and August. 



