PTEROMALIDAE OF N.W. EUROPE 115 



Czechoslovakia, Hungary. A female from Czechoslovakia, in the collection of 

 Dr. Boucek, agrees with the paratype of maculatus. 



Biology. Unknown. The imagines examined were captured in April (<$), July 

 and September ($$). 



Platygerrhus subglaber sp. n. 



(Text-figs. 84, 87) 



$. Head green to blue-green ; clypeus, lower face, and genae, purplish bronze ; dorsum of 

 thorax including the propodeal callus green to blue-green, the pronotum with a blue or violet 

 spot on each side ; sides and venter of thorax with more obscure greenish reflections, but the 

 metapleuron sometimes green like the propodeal callus ; gaster dull bronze, laterally and 

 ventrally greenish, and with the whole of the first tergite, except its hind margin narrowly, 

 green to blue-green ; mandibles brownish with darker teeth ; antennal scape testaceous, 

 darkened at the tip dorsally ; pedicellus brownish, testaceous beneath ; flagellum fuscous ; 

 fore coxae blackish with a metallic tinge, their inner aspect sometimes pale ; mid and hind 

 coxae testaceous, their outer aspect (except apically) fuscous ; legs otherwise testaceous with 

 only the fifth tarsal segment brownish, the femora are deeper in colour, whilst the tarsi proxi- 

 mally are very pale, almost whitish testaceous ; tegulae testaceous ; wings hyaline, venation 

 testaceous or brownish testaceous. Length, 2-7 to 3-2 mm. 



Clypeus mainly or entirely smooth and polished ; anterior tentorial pits large and very deep, 

 subcircular, separated by about their own diameter ; genae on both sides of the malar sulcus 

 very shiny and virtually without sculpture, the edge of the oral fossa between clypeus and 

 genae also polished ; remainder of head with reticulation which is distinctly raised above the 

 general surface ; eyes large, separated by barely i-i times their length ; malar space very 

 short, one third the length of an eye or slightly less. Antennal scape barely reaching level 

 with the vertex, about four times as long as broad, its length slightly less than the transverse 

 diameter of an eye ; pedicellus in profile nearly twice as long as broad, from two thirds to 

 slightly less than the length of the first funicular segment ; funicle filiform, slightly stouter 

 than the pedicellus, its first segment 17 to 2 times, sixth segment 1-25 to 1-5 times, as long 

 as broad ; clava hardly broader than the funicle, 2-5 to nearly 3 times as long as broad, its 

 length about equal to that of the two preceding funicular segments together, its first segment 

 occupying nearly half of the total length ; sensilla fairly numerous, in the larger specimens 

 forming two irregular rows on each funicular segment, though in a small specimen the number 

 in the proximal row is reduced. 



Thorax weakly arched dorsally, so that the dorsellum and propodeum are only gently de- 

 clived. Pronotum, mesoscutum, and axillae with strong raised reticulation. Scutellum 

 weakly convex in its longitudinal axis, relatively strongly sculptured ; along a narrow strip 

 down the middle the sculpture is engraved with strongly elongated areoles, elsewhere the 

 sculpture is slightly raised with the areoles only slightly elongated. Dorsellum slightly shiny, 

 but with distinct, slightly raised reticulation. Propodeum including the calli, and the meta- 

 pleura, with strong and distinctly raised reticulation, relatively dull for the genus ; metapleuron 

 with three to eight hairs in its apical half ; mesepimeron moderately shiny, with delicate 

 alutaceous (engraved) sculpture except ventrally where the sculpture is a little raised. Fore 

 wing (Text-fig. 87) with costal cell with its lower surface bare or virtually bare in the proximal 

 half but with scattered hairs in the distal half, its upper surface bare except for a row of hairs 

 in the distal third ; basal vein with a few hairs ; the basal cell virtually bare, both it and the 

 speculum open below. 



Gastral petiole about 2-5 times as broad as long. Gaster lanceolate, 3 to 3-3 times as 

 long as broad, slightly (i-i to 1-2 times) longer than head plus thorax, nearly as broad as the 

 thorax ; hind margin of first tergite slightly curved ; last tergite about as long as its basal 

 breadth ; hypopygium extending slightly less than half way along the gaster. 



