PTEROMALIDAE OF N.W. EUROPE 545 



Pteromalus albipennis Walker. Syntypes, 2 $. LECTOTYPE, the first specimen. 



Pteromalus plenus Walker. Syntypes, 1 <£, 1 $. LECTOTYPE, the female 

 specimen ; it has an unusually short gaster but is I think the same as albipennis. 



Pteromalus albipennis Zetterstedt. Syntypes, 2 $. LECTOTYPE labelled in 

 Zetterstedt's handwriting " Pt. albipennis §. Kengis ". Zetterstedt described it 

 without any reference to Walker's earlier name albipennis, so presumably it was 

 thought to be a new species. 



Pteromalus hedymeles Walker. Syntypes, 2 <$. LECTOTYPE, the first speci- 

 men ; it probably belongs to albipennis. 



Pteromalus zelus Walker. One male, LECTOTYPE (possibly holotype). 



Pteromalus suia Walker. One male, LECTOTYPE. This may be a male of 

 albipennis. 



Pteromalus coeno Walker. One male, LECTOTYPE. 



Pteromalus larymna Walker. One female, LECTOTYPE. It appears to be a 

 small specimen of albipennis. 



Pteromalus orthagus Walker. One female, designated LECTOTYPE. 



Pteromalus priansos Walker. Syntypes, 2 $ ; LECTOTYPE, the first specimen, 

 a dwarf of albipennis. 



Pteromalus diomedon Walker. One female, LECTOTYPE. 



Habrocytus beryllinus Thomson. Syntypes on 10 pins. LECTOTYPE, a female 

 labelled " Lund ". 



The name albipennis (Walker) was adopted for this species by Thomson (1878) 

 and is now generally accepted. As it is the type-species of Habrocytus, and because 

 there are some other apparently valid species which are difficult to distinguish 

 from it, I give a redescription below. 



(Redescription). $. Body green to blue, sometimes with violet reflections in places. Anten- 

 nal scape usually more or less testaceous at the base ; flagellum fuscous to black, occasionally 

 somewhat testaceous beneath. Coxae, and femora except their tips, concolorous with the 

 body ; trochanters dark, trochantelli at least partly yellowish ; tibiae varying from entirely 

 yellowish, through testaceous, often more or less broadly brownish to fuscous medially ; tarsi 

 pale yellowish, brown distally, fore tarsi sometimes wholly brown. Wings hyaline or whitish 

 hyaline ; veins usually pale yellowish, sometimes pale fulvous, the parastigma and stigma 

 sometimes fulvous to brownish. Length 2-5 to 4-3 mm. 



Head in dorsal view (Text-fig. 406) from hardly broader than, to i-i times as broad as, the 

 mesoscutum, 2-15 to 2-25 times as broad as long ; temples from nearly to slightly more than 

 one third as long as eyes, moderately convergent ; POL 1 -5 to 1 -7 OOL. Head in frontal view 

 subtrapeziform, with genae slightly buccate ; eyes about 1 -5 times as long as broad, separated 

 by 1-4 to 1-5 times their length. Malar space from hardly half, to somewhat more than half, 

 the length of an eye. Anterior margin of clypeus shallowly emarginate, with a depression in the 

 middle touching the emarginate edge. Head finely reticulate, especially on the temples and 

 genae. Clypeus (Text-fig. 394) radiately strigose, the striae extending a little way up the genae 

 and face. Antennae inserted well above the level of the ventral edge of the eyes ; scape fully 

 three quarters as long as an eye, reaching about level with the middle of the median ocellus ; 

 combined length of pedicellus and flagellum slightly less than the breadth of the head ; pedi- 

 cellus (in profile) about 1 -7 times as long as broad, usually somewhat shorter than, or as long as, 

 the first funicular segment, slightly longer in small females ; funicle slightly stouter than the 

 pedicellus, usually cylindrical, very weakly clavate in the smallest specimens ; first funicular 



