162 M. W. R. de V. GRAHAM 



Type Hym. 5. 848, labelled " 38. 8. 13. 77 " ; "Fontainbleau " ; " Pachylarthrus 

 Mustela Walker " ; " Type CF " [C. Ferriere]. 



Pachylarthrus elyces Walker. One female, Type Hym. 5. 847, designated LECTO- 

 TYPE (possibly holotype), bearing a Waterhouse label. 



France ; only the type material known to me. 

 Biology. Unknown. 



Halticoptera poreia (Walker) comb. n. 



? Ormocerus Aletes Walker, 1848 : 107, 163, $. 



Tityros poreia Walker, 1848 : 108, 165, 5*. 



Pteromalus Cercaphrus Walker, 1848 : 125, 191, $, syn. n. 



Type material. Ormocerus aletes Walker. None found. The original descrip- 

 tion accords well with the female of Halticoptera poreia except that the size mentioned 

 (" Length of the body 1^ line ") is too great. Walker might have had an unusually 

 large specimen. 



Tityros poreia Walker. I could not locate the type in the main collection in the 

 BM(NH) and for a long time thought it was lost. Eventually, in a drawer apart 

 from the main collection I found a male which agrees well with the description and 

 is designated LECTOTYPE ; it bears a printed label " Poreico " [sic]. This is the 

 type-species of Tityros, which is now established as a synonym of Halticoptera. 



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

 bearing a Waterhouse label. 



Britain, rare ; " England " (Walker, 1848 : 108) ; Oxfordshire, Otmoor, 1 £, 

 1 $, 21.viii.1955, i<3\ 1 $, 28.viii.1955 {Graham). 



Biology. Unknown. Imagines in August in damp or marshy ground. 



Halticoptera polita (Walker) comb. n. 



Eutelus politus Walker, 1834 : 369, $. 



Ormocerus Mandrocles Walker, 1839 : 206, $, syn. n. 



Halticoptera festiva (Dalman MS.) Thomson, 1876a : 250, q\ $, syn. n. 



Type material. Eutelus politus Walker. Syntypes, 2 $. The second specimen, 

 bearing a Waterhouse label, is designated LECTOTYPE. 



Ormocerus mandrocles Walker. One female, LECTOTYPE, bearing a Waterhouse 

 label, also another reading " Halticoptera sp. $ Ch. Ferriere det.". 



Halticoptera festiva Thomson. Syntypes on 22 pins. LECTOTYPE, a male 

 labelled " Lund " and " festiva Dalm.". 



Britain, Sweden ; uncommon. 



Biology. Unknown. Imagines May- July (rarely in Aug.). 



