194 M - w - R - de V. GRAHAM 



This species, which differs from geniculatum in the characters given in my key to 

 species, is probably undescribed ; it forms a link between Isoplata and the species 

 of Seladerma. 



Species sola 

 Seladerma simplex (Thomson) comb. n. 



Lamprotatus simplex Thomson, 1876a : 227, o* $. 



Telepsogos simplex (Thomson) Delucchi, 1955 : 34, 38-39, $ $. 



Telepsogos simplex (Thomson) ; Graham, 1967 : 75-76, o* ?• 



Type material. Syntypes, 5 specimens, of which 2 have wrong locality data. 

 LECTOTYPE, a female (lacking head) labelled " O.G." [Oster Gottland] ' Bhn ' 

 and " simplex Ths ". 



Britain, Denmark, Sweden. 



Biology. Parasite of Phytomyza krygeri Hering on Aquilegia spp. (see Graham, 

 1967). Imagines June-July. 

 This species may be recognized by the short apical spur of the mid tibia. 



The ANTENNATUM-Grovp 



Seladerma antennatum (Walker) comb. n. 



Miscogaster antennata Walker, 1833 : 460, $. 



Type material. Syntypes, 2 $. LECTOTYPE, the second specimen, bearing a 

 Waterhouse label. It is extremely close to the type $ of sabbas (Walker) but has 

 the gaster rather shorter, the propodeum sloping a little more steeply. The two 

 might prove to be conspecific but for the present I prefer to keep them separate. 



Britain, rare. 

 Biology. Unknown. 



Seladerma sabbas (Walker) comb. n. 



Ormocerus Sabbas Walker, 1848 : 106, 162, $. 

 Lamprotatus gracilis Thomson, 1876a : 231, o" $. 

 Telepsogos sabbas (Walker) Delucchi, 1955 : 34, 39-40, q" $. 



Type material. Ormocerus sabbas Walker. One female, LECTOTYPE (possibly 

 holotype), bearing a Waterhouse label. 



Lamprotatus gracilis. Syntypes, several specimens. LECTOTYPE, a female 

 labelled " Lund " and " $ ". 



Britain, Sweden, very local. Imagines in May. 



Jansson (1952 : 6) gave several host records for gracilis Thomson, amongst which 

 is Phytomyza krygeri Hering ; the latter record may refer in fact to Seladerma 

 simplex (Thorns.) and needs checking. 



