308 M. W. R. de V. GRAHAM 



cJ. Very similar to that of salicis, but on the average slightly smaller. Flagellum slightly 

 longer, combined length of pedicellus and flagellum equal to, or even very slightly greater than, 

 the breadth of the head ; first funicular segment quadrate to slightly elongate, the following 

 segments often quadrate though sometimes slightly transverse. 



Holotype $. England : Berkshire, Wytham, 17. v. 1952, from Salix cinerea L. 

 (Graham), in Hope Department, University Museum, Oxford. 



Paratypes. Same data as holotype, a few males and females ; same locality as 

 holotype, 2 $, 16.V.1951, 1 $, 2 $, 26. v. 1954 (Graham) ; Oxfordshire, Marston Ferry, 

 near Oxford, several males and females, n.v.1961, 13.V.1961, 14.V.1961, swept 

 from Salix purpurea L. (Graham) ; Lancashire South, Formby Moss, a few males 

 and females, 29.vi.1962, swept from S. cinerea L. (Graham), in Graham collection. 



Amurland : one female (Type Hym. 5.665, LECTOTYPE of Semiotus fulvicornis 

 Walker), in BM(NH). 

 Biology. Unknown. 



Gastrancistrus fulvicornis (Walker) comb. n. 

 (Text-figs. 242, 243) 

 Lamprotatus fulvicornis Walker, 1874 : 315, "<J " [recte $]. 



$. Resembles that of praecox sp. n., but is on the average slightly smaller (length i-6 to 1-9 

 mm.). Each posterior ocellus is separated by 1-4 to 1-75 its major diameter from the adjacent 

 eye ; POL i-6 to i-8 OOL. The antennal flagellum (Text-fig. 242) tends to be rather shorter ; 

 the first funicular segment is quadrate or even very slightly transverse, the following segments 

 are slightly transverse ; the length of the clava equals that of 3-5 to 4 of the preceding funicular 

 segments. Scutellum with three to four pairs of bristles. 



o*. Differs from that of praecox sp. n. in having a shorter flagellum, combined length of 

 pedicellus and flagellum 0-85 to 0-9 the breadth of the head ; the hairs which clothe it tend to 

 be slightly less outstanding. The first funicular segment is about quadrate, the following 

 segments are at least slightly, sometimes rather strongly, transverse (Text-fig. 243). 



England : Lancashire South, Freshfield, a number of <$£ and $$, 31.V.1959, 

 i.vi.1959, 3.VL1959, swept from Salix repens L. in a dune-slack (Graham). 



Amurland : one female, the LECTOTYPE, in Walker collection, BM(NH), 

 Type Hym. 5.809, labelled " Amurland. Coll. F. Walker, 1913-71 " and in Walker's 

 handwriting " Lamprotatus fulvicornis ". 



Biology. Unknown. 



The VAGA TVS-Group 



Gastrancistrus laticornis Walker 



(Text-fig. 253) 



? Gastrancistrus tenuicornis Walker, 1834 : 172, <J $. 



Gastrancistrus laticornis Walker, 1834 : I 74> ?• 



Gastrancistrus laticornis Walker ; Haliday, 1841-1842 : v, pi. D, fig. 2, $. 



Type material. Gastrancistrus tenuicornis Walker. Syntypes, 1^,1$, the 



