270 M. W. R. de V. GRAHAM 



as broad, broadening slightly in its upper half ; combined length of pedicellus and flagellum i -45 

 times the breadth of the head ; pedicellus somewhat flattened, in dorsal view hardly longer 

 than broad ; flagellum subfiliform ; first funicular segment proximally slightly less stout than 

 the pedicellus in profile, but broadening distally, about 25 times as long as broad ; the follow- 

 ing segments about equal in breadth to the thickest part of the first segment, but gradually 

 decreasing in length, the sixth about 1 -5 times as long as broad ; clava about 3-5 times as long 

 as broad, about equal in length to the two preceding funicular segments including their peduncles, 

 constricted about half way along, two-segmented, pointed apically and with a terminal spine. 

 Each funicular segment is constricted apically to form a conspicuous peduncle, and is clothed 

 with strongly outstanding bristly hairs whose length is about equal to that of the segments 

 themselves ; clava with similar hairs ; these hairs form irregular whorls. 



Gaster sublinear in dorsal view, compressed and somewhat higher than broad, sunken dorsally, 

 ventrally with a very strong sharp plica. 



Fore wing with marginal vein rather shorter than in the female, only 1-5 to i-6 times as long 

 as the stigmal vein. 



England : Berkshire, Wytham Wood, $<$ captured 13.vi.1959, 20.vi.1959, 28.vi. 

 i960, all on Picea (Graham). 



Sweden : Stockholm, without other data, one female (the type, presumably 

 holotype) in Thomson collection, labelled " Him " [Holmiae], " Bhn " [Boheman], 

 and in Thomson's handwriting " mucronatus ". 



Biology. Unknown. 



Melancistrus specularis sp. n. 



(Text-figs. 197, 201) 



$. Differs from that of mucronatus (Thomson) as follows : 



Fore wings hyaline ; head, thorax, and gaster with at least a faint bluish tinge in places. 



Antennal scape with fewer hairs along its front edge. Sculpture of vertex, mesoscutum, 

 axillae, and scutellum relatively a little stronger, so that these parts appear slightly duller. 

 Fore wing (Text-fig. 197) with upper surface of costal cell less hairy, there being one irregular 

 row, or two rows, of hairs near the costal edge plus some additional scattered hairs in the distal 

 third of the cell ; there is a moderate-sized speculum which is partially effaced on the lower 

 surface of the wing by a few hairs ; the postmarginal vein is 1-2 to 1-45 times as long as the 

 marginal vein ; the latter is 2-15 to 2-3 times the length of the stigmal vein. The costal cell 

 of the hind wing is bare. Gaster, Text-fig. 201. 



<$. Unknown. 



Holotype $. Scotland : West Inverness, Isle of Rhum, Kinloch, 26.viii.1961, 

 probably beaten from Betula (Graham), in Hope Department of Entomology, 

 University Museum, Oxford. 



Paratype $. England : Berkshire, Bagley Wood, 12.x. 1957 (Graham), in 

 Graham collection. 



Biology. Unknown. 



GASTRANCISTRUS Westwood 



Gastrancistrus Westwood, 1833a : 444. Type-species : G. vagans Westwood, by monotypy. 

 Glyphe Walker, 1834 : *68, 170. Type-species : G. autumnalis Walker, by monotypy. 



