130 M. W. R. de V. GRAHAM 



— Antennal flagellum fuscous to black ; scape and pedicellus often mainly to 



entirely black ; hairs of flagellum often standing out more strongly. Legs 

 sometimes relatively darker ........ 8 



8 (7) Fore wing with distal third to half of basal cell with scattered hairs. Com- 



bined length of pedicellus and flagellum of antenna barely 1-5 times the 

 breadth of the head ; funicular segments relatively shorter, the first at most 

 slightly more than twice, the sixth about 1 -5 times, as long as broad. 

 Pronotal collar rounded off anteriorly, without teeth brevicornis (Walker) (p. 135) 



— Fore wing with basal cell bare, or at most with a few scattered hairs at apex. 



Combined length of pedicellus and flagellum 1-75 to i-8 times the breadth 

 of the head ; funicular segments relatively longer, the first 3 to 3-7 times, 

 the sixth 2 to 2-6 times, as long as broad. Pronotal collar with a transverse 

 ridge, or distinct teeth, anteriorly ....... 9 



9 (8) Pronotal collar with distinct teeth. Hairs of antennal flagellum about as long 



as the breadth of the segments that bear them, standing out at an angle of 

 about 45 ........ cuscutae Ferriere (p. 136) 



— Pronotal collar with indistinct teeth. Hairs of flagellum a little longer than 



the breadth of the segments that bear them, standing out at about 6o° sp. indet. 



Sphegigaster mutica Thomson 



Sphegigaster muticus Thomson, 1878 : 22, $. 



Type material. One female, LECTOTYPE (may actually be holotype), labelled 

 " Sm " [Smaland], " Bhn " [Boheman] and " muticus Ths ". 



Sweden ; only the type female known to me. 

 Biology. Unknown. 



Sphegigaster truncata Thomson 



Sphegigaster truncatus Thomson, 1878 : 21, 9. 



Type material. Syntypes, 2 $. LECTOTYPE labelled " Gl " [Gottland], 

 " Bhn " and "truncatus Ths ". 



Sweden ; only the syntypes known to me. Boucek (1965^ : 8) recorded the 

 species from Moldavian S.S.R. ; his identification is no doubt correct but I have 

 not seen these specimens. 



Biology. Unknown. 



Sphegigaster stepicola Boucek 



Sphegigaster stepicola Boucek, 19650 : 12-14, 6* $• 



Type material. Holotype $, Czechoslovakia, Bohemia, Hazmburk Hill, 26.vii. 

 1948 (Boucek), in Narodni Museum, Prague (Cat. No. 26.006). 



Austria, Czechoslovakia, Moldavian S.S.R., Algeria. 



Biology. Reared in Austria from Phytomyza albiceps Mg. on Cirsium arvense (L.) 

 Scop. (Boucek, 1965 : 13). Imagines May-August. 



