660 M. W. R. de V. GRAHAM 



The following notes on the characters of teliformis are intended to supplement 

 the redescription given by von Rosen (1958) : 



$. Head and thorax varying from bright golden green through green to blue. Legs, except 

 coxae and tips of tarsi, usually wholly yellow, occasionally with the hind femora dark at the 

 base, rarely the fore and mid femora slightly brownish at base. Length i-8 to 3-2 mm. 



Head in dorsal view 1-75 to 2 times as broad as long, tending to be relatively less transverse 

 in smaller specimens ; temples nearly or quite one third as long as eyes ; malar space 0-4 to 0-5 

 length of eye, but rarely less than 0-45. Antennae with scape shorter than an eye, not reaching 

 the median ocellus ; pedicellus in dorsal view usually less than twice as long as 

 broad, virtually twice in some small specimens ; flagellum relatively short, in most specimens 

 strongly clavate, though in some large ones rather less so and thus approaching that of nobilis ; 

 first funicular segment, except in some large specimens, at least a little shorter than the second 

 segment, varying from strongly transverse (smaller specimens) to quadrate (large specimens) ; 

 distal segments strongly transverse ; clava 1-5 to 1-7 times as long as broad, in average-sized 

 and small specimens as long as 3-5 to 4 of the preceding funicular segments, in some large 

 specimens hardly longer than the three preceding segments. In some females, especially 

 small ones, there is hardly any distinction between the anelli and the proximal funicular seg- 

 ments, as they all increase gradually in length ; in such specimens the third anellus may be 

 three quarters as long as the first funicular segment. In very large females, however, the third 

 anellus may be hardly more than one-third as long as the first funicular segment, and the latter 

 may be quadrate. 



Gaster 2-7 to 4-3 times as long as broad, 1-25 to 1-5 times as long as head plus thorax. The 

 hypopygium appears to be characteristic (Text-fig. 551) ; anterolateral angles very prominent ; 

 median sclerotized area rather narrow and long, reaching much farther back than the level of 

 the hind edges of the sublateral sclerotized areas. 



o*. Femora apparently always yellow. Malar space 0-42 to 0-48 length of eye. 



The female of teliformis differs from that of laticornis in its paler femora, in its 

 gaster, which is on the average longer, and especially in its hypopygium. 



Most females are easy to distinguish from those of nobilis, having relatively shorter 

 and strongly clavate flagellum and shorter proximal funicular segments (Text-fig. 

 544). Large females of the form cindicornis (Walker), which have the antennal 

 flagellum (Text-fig. 548) less strongly clavate and the proximal funicular segments 

 longer, are sometimes not easy to distinguish from some females of nobilis, however. 

 The best diagnostic character in such cases appears to be the hypopygium ; as 

 compared with female nobilis, those of the form cindicornis have a relatively longer 

 gaster, rather longer malar space, and slightly longer pedicellus, but there is some 

 overlap in the ranges of variation. 



Britain, Sweden, France, Germany, Czechoslovakia, U.S.S.R. 



Biology. Von Rosen (1960 : 16-17) stated that he had obtained teliformis in 

 Sweden from inflorescences of Agropyron repens (L.) Beauv. ; also that he had 

 received specimens reared in U.S.S.R. from seeds of A. cristatum [(L.) ? J. Gaertn.]. 

 I have found it to be abundant on A. junceiforme A. & D. Love. In Britain 

 imagines may be found from late June to early September, peak period apparently 

 July- August. 



