PTEROMALIDAE OF N.W. EUROPE 223 



prominent at the shoulders. Mesoscutum about 1 -6 times as broad as long, somewhat glittering, 

 with very fine slightly raised scaly-reticulation, and with numerous hairs which arise from minute 

 tubercles ; mid and side lobes convex, notauli deeply impressed ; hind margin of mesoscutum 

 strongly sinuate. Scutellum only moderately convex, slightly longer than broad, slightly 

 shorter than the mesoscutum, separated from the latter by a broad sculptured depression, with 

 very fine engraved reticulation, with a short median longitudinal groove at the base ; frenum 

 marked off by a distinct line, sculptured much like the rest of the scutellum but with in addition 

 some longitudinal costulae. Dorsellum large, only about twice as broad as long, slightly shorter 

 than the frenum, shiny and nearly smooth. Propodeum not strongly transverse, long, medially 

 about two thirds as long as the scutellum, its sides converging posteriorly, the nuchal area 

 distinctly produced backwards beyond the bases of the hind coxae ; area between the spiracles 

 nearly smooth medially, alutaceous laterally ; median carina fine, complete (in one specimen, 

 double), plicae sharp over hinder half of the sclerite ; along the base of the propodeum there are 

 several short longitudinal costulae ; nucha a convex, almost semicircular, polished boss ; 

 spiracles subcircular, separated by slightly less than their diameter frofn the metanotum ; 

 spiracular sulci strongly impressed, punctate ; supracoxal flanges broad, oblique but only 

 slightly curved ; callus with numerous bristles ; also several bristles between each plica and the 

 corresponding spiracular sulcus. Metapleuron and mesepimeron with fine, slightly raised 

 reticulation, the mesepimeron marked off anteriorly by a curved punctate line. Postspiracular 

 sclerite finely reticulate, its lateral panel, marked off by a strong oblique carina, forming a shiny, 

 nearly smooth, and almost equilateral triangle. Fore wing with costal cell (lower surface) with 

 scattered hairs which are more numerous distad, upper surface with two to three rows of hairs 

 in the distal half ; basal cell hairy except for a longitudinal strip in its lower half ; basal vein 

 pigmented except in its upper third ; speculum absent on both surfaces of the wing : marginal 

 vein about 1-7 times as long as the stigmal vein ; postmarginal vein about 1-25 times as long 

 as the marginal ; stigmal vein curved, stigma large, separated by only about 1 -5 times its height 

 from the costal edge of wing, slightly longer than high, subtrapeziform (slightly higher basally 

 than apically). 



Petiole of gaster about as long as the propodeum and reaching level with the tips of the hind 

 coxae, i-8 to 2 times as long as broad, with very fine but raised reticulation, its sides subparallel 

 except in the proximal quarter where they converge to the junction with the propodeum. 

 Gaster ovate, convex dorsally and ventrally, slightly shorter than the thorax, about 1-7 times 

 as long as broad ; basal tergite occupying somewhat less than half the total length, its hind 

 margin entire but strongly curved ; tip of hypopygium situated about half way along the 

 gaster. 



o*. Differs from the female as follows : 



Antennal scape black with a metallic tinge. All femora blackish medially (the mid pair only 

 beneath). Antennal scape slightly shorter, 2-7 to 2-9 times as long as broad, narrowest proxi- 

 mally and expanding slightly distad, its outer surface with a small shiny boss in the upper half, 

 otherwise alutaceous ; combined length of pedicellus and flagellum 1 -75 to 1 -8 times the breadth 

 of the head ; funicular segments more elongate, the first about three times as long as broad and 

 about 2-5 times the length of the pedicellus, the sixth about 2-5 times as long as broad ; clava 

 4-3 to 4-6 times as long as broad, more pointed apically, a little shorter than the two preceding 

 funicular segments together ; hairs of flagellum longer, their length nearly two thirds the 

 breadth of the segments which bear them, and standing out at an angle of about 45 ; sensilla 

 sparser. Gastral petiole with its sides slightly curved. Gaster narrower than the thorax, 

 widening gradually from its base to near the apex, which is + obtuse ; basal tergite occupying 

 half or rather more than half the total length, its hind margin nearly straight. 



The combination of long and slender flagellum, elongate and not strongly arched thorax, 

 shiny propodeum, and elongate petiole, makes this a very distinct species. In the general 

 shape of the thorax, the deep notauli, and the flagellum, it somewhat resembles obscurus 

 (Walker), but it differs from it greatly in other respects. Neither is it at all near any of the 

 other European species. It is, however, evidently very close to the Japanese species elongatus 



