770 M. W. R. de V. GRAHAM 



Eupteromalus exiguus (Walker) 



(Text-figs. 639, 645) 



Meraporus exiguus Walker, 1834 : 301, <J. 

 Eupteromalus exiguus (Walker), Graham, 1957^ : 2I &> <$■ 



Type material. Lectotype designated by Graham (1957^) ; as it is the only 

 extant specimen, it may actually be a holotype. 



$. Head and thorax coloured as in hemipterus (Walker), but sometimes darker, varying to 

 olive- or bluish black. Legs on the average darker, the femora usually more or less infuscate, 

 sometimes mainly so, the tibiae sometimes infuscate medially. Length 1-3-2 mm. 



Malar space half, or virtually half the length of an eye ; eyes rather smaller than in hemip- 

 terus, separated by 1-3-1-4 times their length. Antenna (Text-fig. 639) with first funicular 

 segment at least very slightly shorter than the second, sometimes almost anelliform, slightly 

 to quite distinctly transverse ; the middle segments of the funicle are sometimes quadrate, 

 but usually all the segments are slightly transverse. 



Pronotal collar usually weakly and irregularly margined, occasionally the transverse carina 

 is sharp over about the middle third. Median area of propodeum 1-2-1-32 times as broad as 

 long. Macropterous : fore wing with marginal vein 1-4—1-6 times as long as the stigmal vein ; 

 postmarginal vein usually as long as, or even very slightly longer than, the marginal, occasion- 

 ally slightly shorter. 



Gaster ovate, 1-15-1-4 times as long as the thorax, 1-55-1-9 times as long as broad. 



The female differs from that of hemipterus (Walker) in its relatively shorter first 

 funicular segment, rather smaller eyes and longer malar space, and relatively shorter 

 marginal vein. 



o*. Colour as in $, but femora usually testaceous, occasionally slightly infuscate proximally ; 

 flagellum testaceous or brownish. Malar space half, or slightly more than half, the length of an 

 eye ; eyes separated by 1-37-1-5 times their length. Antennal scape nearly or quite as long as 

 an eye, reaching to or slightly above the level of the vertex ; first funicular segment from half 

 to three quarters as long as the second, slightly to very distinctly transverse, in the smallest 

 specimens virtually anelliform. Fore wings fully developed. Gaster subcircular, hardly as 

 long as the thorax. Length 1-1-4 mm - Head, Text-fig. 645. 



The male differs from that of hemipterus in being macropterous, and in having 

 rather smaller eyes and longer malar space. 



England : " near London " (Walker, 1834 : 3 01 ) '> Middlesex, Southgate, 2 $, 

 20.viii.1964, 2 (J, 1 $, 27.viii.1964 (Graham). 



Biology. Unknown ; the Southgate specimens were swept from grassy habitats. 



Eupteromalus maurus sp. n. 



(Text-figs. 613, 629) 



$. Closely resembles that of exiguus (Walker) but differs as follows : 



Both mandibles with 4 teeth ; marginal vein 1-55-1-75 times as long as the stigmal vein, 

 postmarginal vein at least very slightly shorter than the marginal ; gaster relatively shorter, 

 1-0-1-05 times as long as the thorax and 1-35-1-55 times as long as broad. Head and thorax 

 on the average darker, bluish black or with at most a weak olive tinge on parts of their dorsal 

 surface. Pronotal collar tending to be fairly regularly and distinctly margined (the transverse 



