578 M. W. R. de V. GRAHAM 



green or brassy reflections dorsally, especially upon the basal tergite ; hind margins of tergites 

 two to six each with a broad purplish bronze band, sometimes this colour extends over the whole 

 surface of these tergites except their extreme bases. Mandibles chestnut-red with darker teeth. 

 Antennae black ; scape weakly metallic-tinged, more or less testaceous proximally. Legs 

 blackish with varied metallic reflections like those on the sides of the thorax ; trochanters 

 partly or wholly, extreme tips of femora, and bases and tips of the tibiae, testaceous ; fore 

 tarsi fuscous, mid and hind tarsi pale or whitish testaceous proximally, fuscous distally. 

 Tegulae fuscous. Wings hyaline ; venation fuscous, except the submarginal vein, not counting 

 the parastigma, of the fore wing, which is more testaceous ; and the veins of the hind wing, 

 which are mainly pale. Length 2-9 to 3-2 mm. 



Head in dorsal view 2-1 to 2-15 times as broad as long, with temples approximately half as 

 long as the eyes and converging only moderately ; POL about 1 -3 times OOL. Eyes separated 

 by 1 -4 to 1 -5 times their length. Genae slightly buccate ; malar space from half to three fifths 

 the length of an eye. Clypeus striate, the striae extending a little way on to the face, its 

 anterior margin broadly but very shallowly emarginate. Head finely reticulate, the genae very 

 finely so, clothed with pale hairs. Left mandible with three teeth, right mandible with four, 

 the teeth acute, the inner tooth of the left mandible obliquely truncate and less acute than the 

 others. Antennae with scape reaching about level with the middle of the median ocellus, its 

 length distinctly greater than the transverse diameter of an eye ; combined length of pedicellus 

 and flagellum slightly less than breadth of head ; pedicellus slightly less than twice as long as 

 broad, slightly shorter than or as long as the first funicular segment ; flagellum distinctly 

 clavate ; funicle proximally slightly stouter than the pedicellus when the latter is seen in dorsal 

 view ; first funicular segment 1-4 to i-6 times as long as broad, second and third segments 

 slightly longer than broad or quadrate, fourth quadrate, fifth slightly transverse, sixth about 

 1 -5 times as broad as long ; clava i-6 to i-8 times as long as broad, about as long as two and a 

 half of the preceding funicular segments ; sensilla fairly numerous, in one row on each funicular 

 segment, sometimes irregular on the proximal segments. 



Pronotal collar variable in length, medially from one eighth, to about one fifth, as long as the 

 mesoscutum, finely though sharply margined anteriorly. Mesoscutum 1 -3 to 1 -4 times as broad 

 as long, finely reticulate, with pale hairs. Scutellum about as broad as long, or very slightly 

 longer than broad, moderately convex, very finely reticulate. Propodeum (medially) nearly or 

 quite two thirds as long as the scutellum, very finely reticulate ; costula placed in the middle, 

 strong ; median carina single or double. Fore wing with basal cell closed below except proxi- 

 mally ; basal vein pilose ; speculum open below ; marginal vein 1 -5 to 1 -65 times as long as the 

 stigmal vein ; postmarginal vein about as long as the marginal vein ; stigmal vein forming a 

 relatively acute angle (about 35 ) with the postmarginal vein ; stigma moderate-sized, oblong 

 and nearly twice as long as high, separated by 2-3 to 2-6 times its own height from the costal 

 edge of the wing. 



Gaster ovate, not or barely as long as the thorax, 1 -4 to 1 -6 times as long as broad, about as 

 broad as the thorax ; basal tergite occupying about one third the total length, its hind edge 

 entire or very weakly emarginate medially ; last tergite somewhat shorter than its basal breadth ; 

 ovipositor sheaths hardly projecting beyond the last tergite ; hypopygium extending half or 

 slightly more than half way along the gaster. 



o*. Unknown. 



Holotype $. England : Oxfordshire, Otmoor, 19. ix. 1956, swept from foliage of 

 Quercus robur L. (Graham), in Hope Department, University Museum, Oxford. 



Paratypes. Same locality and host plant as holotype, 1 $, 4.1X.1955, 1 $, 15. ix. 

 1956, 1 $, 19. ix. 1956 (Graham), in Graham collection ; Kent, Lewisham, 1 $, ix.1890 

 (A. J. Chitty), in Hope Department, University Museum, Oxford. 



The female of A. temporalis is very close to that of crassicornis (Thomson), from 

 which it differs in a few small characters which are listed in the key to species. 



