PTEROMALIDAE OF N.W. EUROPE 513 



84 (79) Gaster as long as, or slightly longer than, head plus thorax. POL 1-15 to 15 



OOL. Mandibular formula 3.4 or 4.4 ....... 85 



Gaster not or only slightly longer than the thorax. POL usually not or hardly 



greater than OOL. Mandibular formula 4.4 ...... 88 



85 (84) POL hardly greater than OOL. Mandibular formula 4.4. Body with obscure 



bronze, bluish, and greenish tints. Marginal vein of fore wing only 12 to 

 1-35 times as long as the stigmal vein. Propodeum slightly more than half 

 as long as the scutellum .... P. bifoveolatus Forster (p. 490) 

 Either POL 1 -25 to 1 -5 OOL and mandibular formula 3.4 ; or else body bright 

 green to blue-green, and marginal vein 1 -4 to 1 -7 times as long as the stigmal 

 vein. Propodeum often not more than half as long as the scutellum . 86 



86 (85) Combined length of pedicellus and flagellum equal to or slightly greater than 



breadth of head. Marginal vein of fore wing 1-35 to 1-5 times as long as 

 the stigmal vein. Mandibular formula 3.4. Head and thorax most often 

 bronze or bronze-green ......... 87 



- Combined length of pedicellus and flagellum slightly less than breadth of head. 



Marginal vein 1-4 to 1-7 times as long as the stigmal vein. Mandibular 

 formula 4.4. Body bright green to blue-green ..... 90 



87 (86) Propodeum (Text-fig. 385) with nucha shorter, its length hardly one third the 



median length of the propodeum ; spiracles large, nearly twice as long as 

 broad, nearly touching the metanotum. Basal vein of fore wing usually 

 bare, occasionally with one to three hairs . H. setnotus (Walker) (p. 529) 



- Propodeal nucha longer, its length one third that of the propodeum or slightly 



more ; spiracles smaller, about 1 -5 times as long as broad, separated by a 

 short space from the hind margin of the metanotum. Basal vein of fore 

 wing with two to nine hairs H. helenomus sp. n. (p. 535) 



88 (84) Antennae inserted unusually high on the head, their toruli slightly nearer to 



the median ocellus than to the anterior margin of the clypeus ; combined 

 length of pedicellus and flagellum slightly greater than breadth of head ; 

 flagellum slender, hardly stouter than the pedicellus when the latter is seen 

 in dorsal view ; scape reaching well above level of vertex. Propodeum 

 medially only about half as long as the scutellum . P. sp. indet. A (p. 429) 



Antennae inserted rather less high on the head, their toruli about equidistant 

 from the median ocellus and the anterior margin of the clypeus, or a little 

 nearer to the latter ; combined length of pedicellus and flagellum at most 

 equal to breadth of head ; flagellum rather less slender, than in above ; 

 scape not always reaching above vertex. Propodeum medially a little 

 more than half as long as the scutellum. ...... 89 



89 (88) Fore wing with marginal vein 1-4 to 1-7 times as long as the stigmal vein. 



POL 115 to 1-25 OOL. Body bright green or blue-green . ... 90 



Fore wing with marginal vein 11 to 1-3 times as long as the stigmal vein. 

 POL not or hardly greater than OOL. Body sometimes with more obscure, 

 bronze-green to bronze or dark bluish, tints . . . . . 91 



90 (89) Gaster lanceolate or sublanceolate, i-8 to 2-3 times as long as broad, usually as 



long as or slightly longer than head plus thorax, only occasionally a little 

 shorter. Antennae (Text-fig. 390) with funicular segments relatively 

 shorter ; the first at least slightly shorter than the pedicellus. 



Propodeum, text-fig. 389 . . . .P. procerus sp. n. (p. 492) 



- Gaster ovate, 1-55 to i-6 times as long as broad, slightly shorter than head 



plus thorax. Antennae (Text-fig. 391) with funicular segments relatively 

 longer ; the first as long as the pedicellus . . P. smaragdus sp. n. (p. 494) 



91 (89) Head in dorsal view twice or hardly more than twice as broad as long ; POL 



tending to be slightly less than OOL ; temples about two thirds as long as 



