260 M. W. R. de V. GRAHAM 



- Female gaster at most very slightly longer than head plus thorax, and at most 



about 23 times as long as broad, if as long as this, then the head in frontal 

 view has the vertex weakly arched, and the eyes are separated by only 1-25 

 to 1-3 times their length ......... 6 



6 (5) Female antennal pedicellus about as long as anelli plus first funicular seg- 

 ment ; fifth funicular segment hardly shorter than the first segment of the 

 clava ; gaster 2 to 2-3 times as long as broad, as long as head plus thorax, 

 slightly narrower than the thorax ; length i-8 to 2-0 mm. Male length 1-5 

 to i-6 mm. ; antennal funicle fully as stout as the pedicellus 



angustula sp. n. (p. 262) 



- Female antennal pedicellus (Text-fig. 194) distinctly longer than anelli plus first 



funicular segment ; fifth funicular segment distinctly shorter than the first 

 segment of the clava ; gaster 1-3 to i-6 times as long as broad, as broad as 

 or broader than the thorax ; length 1 -4 to 1 -8 mm. Male length 1 -o to 1 -4 

 mm. ; antennal funicle (Text-fig. 193) usually slightly thinner than the 

 pedicellus ........ parvula Thomson (p. 263) 



Subgenus SYSTAS1NA Boucek 

 Sy stasis (Systasina) annulipes (Walker) comb. n. 



Gastrancisirus annulipes Walker, 1834 : 176, $. 



Ormocerus Bambyce Walker, 1839 : 208, $, syn. n. 



Systasis {Systasina) clavicomis Boucek, 1955 : 324, o* 9. syn. n. 



Type material. Gastrancistrus annulipes Walker. Syntypes, 2 $ which are 

 conspecific. LECTOTYPE, the first specimen, with Waterhouse label, and another 

 " Type C.F." [C. Ferriere]. 



Ormocerus bambyce Walker. One female, LECTOTYPE. 



Systasis (Systasina) clavicomis Boucek. Type $, Bohemia, valley between 

 Noutounice and Kovary, 6-1 i.vi. 1953 (Boucek), in Narodni Museum, Prague (Cat. 

 no. 3063) . I have examined the type. 



Britain, Czechoslovakia, Hungary. In England, locally common on rough 

 grassland, particularly chalk downland. 



Biology. Unknown. Imagines mainly in June-July, single records for end of 

 May, and August, in Czechoslovakia. 



Subgenus SYSTASIS Walker, s. str. 



Systasis (Systasis) tenuicornis Walker 



(Text-figs. 191, 192, 195) 



Systasis tenuicornis Walker, 1834 : 297, ?. 



Type material. Syntypes, 1 $, 2 <J. LECTOTYPE, the female, bearing a 

 Waterhouse label and another in C. Ferriere's handwriting " same sp. as above ? ". 



England : Berkshire, Windsor Forest (Walker, 1834 : 2 97) '> Wytham Wood, 1 $, 

 12.vii.1956 (Graham) ; Bagley Wood, 1 $, 28.vii.1955, 1 $, 1 $, 30.V.1957 (Graham). 

 This species appears to be much less common than encyrtoides. 

 Biology. Unknown. Imagines June-August. 



