PTEROMALIDAE OF N.W. EUROPE 785 



3 (1) Head in dorsal view about 2-2 times as broad as its maximum length ; temples 



about one third as long as eyes. Scutellum slightly longer than broad, 

 moderately convex. Antennae with all funicular segments slightly trans- 

 verse, or at most the first and second quadrate ; sensilla in one, sometimes 

 irregular, row on each funicular segment. Smaller species, length 2-2-8 mm. 



acuminati Heqvist (p. 786) 

 Head in dorsal view 2-35-2-4 times as broad as its maximum length ; temples 

 about one quarter as long as eyes. Scutellum hardly longer than broad, less 

 convex. Antennae with proximal funicular segments usually at least slightly 

 longer than broad, occasionally quadrate, distal segments subquadrate ; 

 sensilla in two rows on at least some of the funicular segments. Larger 

 species, 2-5-4 mm. ........... 4 



4 (3) Malar space about two thirds the transverse diameter of an eye. (Europe) 



seitneri (Ruschka) (p. 786) 

 Malar space about seven eighths the transverse diameter of an eye. (North 



America) ........ tibialis Ashmead (p. 787) 



(Males) 



1 Head, mesoscutum, and scutellum shiny, their sculpture for the most part 



engraved ; frons, vertex, and mesoscutum usually with some discernible pili- 

 ferous punctures. Pronotal collar medially very short, one twelfth to one 

 eighth as long as the mesoscutum. Median area of propodeum usually with 

 some irregular wrinkles as well as reticulation. Hairs of antennal flagellum 

 longer, their length about half the breadth of the segments, and standing out 

 at 30-45 °. Head and thorax bright green to blue promulus (Walker) (p. 785) 



Head, mesoscutum, and scutellum less shiny, their sculpture at least slightly 

 raised above the general surface ; piliferous punctures of head and meso- 

 scutum not or hardly visible amongst the dense reticulation. Pronotal collar 

 longer, medially one sixth to one fifth as long as the mesoscutum. Median 

 area of propodeum uniformly or nearly uniformly reticulate. Hairs of 

 flagellum shorter and tending to stand out less strongly. Head and thorax 

 usually duller green or bronze ......... 2 



2 (1) Head in dorsal view 2-2-1 times as broad as its maximum length. Antenna 



with scape distinctly shorter than an eye, not reaching the vertex ; funicular 

 segments subquadrate, the first distinctly shorter than the pedicellus. Head 

 and thorax green to bronze-green . . . acuminati Hedqvist (p. 786) 



Head in dorsal view 2-25-2-35 times as broad as its maximum length. Antenna 

 with scape virtually as long as an eye, reaching level of vertex ; funicular 

 segments, except sometimes the sixth, at least slightly longer than broad, the 

 first only slightly shorter than the pedicellus. Head and thorax bronze with 

 at most slight greenish reflections .... seitneri (Ruschka) (p. 786) 



and tibialis Ashmead (p. 787) 



Tomicobia promulus (Walker) 



Pteromalus Promulus Walker, 1840 : 232, $. 



Pteromalus Acrotatus Walker, 1845 : 261, $, syn. n. 



Metopon (Dirhicnus) sublaevis Thomson, 1878 : 172, o* ?» syn. n. 



? Ipocoelius rotundiventris Ruschka, 1924 : n-12, $. 



Tomicobia promulus (Walker) Boucek, 19652 : 8. 



Type material. Pteromalus promulus Walker. One female in Greville collection 



