THE ENTOMOLOGIST. 501 



Uvticge, Perris^ in galls of Urtica dioica. It seems (Ent. 

 Mag. i. 342) ibat A. H. Haliday often saw the oviposition of 

 Mymaridae in eggs of Lepidoplera, and he mentions that 

 many are often transformed in a single butterfly's eg^, and 

 that Polymena Ovulorum is abundant in summer, destroying 

 the eggs of Pieris Brassicas. Thus they attack both eggs 

 and larvae ; and such is also the case with Trichogramma 

 evanescens, one of the most minute of the Chalcidiae. The 

 Telenomi are, perhaps, more exclusively ovivorous, and some 

 descriptions of Ichneumon Ovulorum may have reference to 

 them ; and Haliday remarks that Linneus and Schrank have 

 each described two species under this name. 



Foerster mentions that he reared from the capsules of 

 Papaver Rhceas and P. dubium, where there were galls of 

 Aulax RhcEadis, Camptoptera Papaveris, Foerst., Pteromalus 

 Papaveris, Foerst., Cecidomyia Papaveris, Winti, Pezomachus 

 Papaveris, Foerst., Lochites Papaveris, Foerst., and a small 

 Ichneumon, In a postcript he alters the name Camptoptera 

 to Pteroclisis. 



Sir J. Lubbock has described two species (Polyneraa 

 natans and Prestwichia aquatica, Linn. Trans, xxiv. 138 — 140, 

 pi. 23) that live occasionally under water, and are able to 

 swim : — Polynema natans, according to Haliday, = Cara- 

 phractus cinctus, Hab. 



As before mentioned with regard to the Chalcidiae, Foerster's 

 works will be useful to anyone who may write the history of 

 the British Proctotrupii, with which that author includes the 

 Mymaridae. The characters which he assigns for this arrange- 

 ment are as follows : — 



CHALCIDIiE. 



Male. — Antennae always bent, or with one or more small 

 joints between the scapus and the flagellum, the basal joint 

 of the antennae being like a handle, and the apical part like a 

 whip, or in frequent vibration. 



Female. — Oviduct emerging before the tip of the abdomen. 



Pkoctotrupii. 

 Male. — Antennae bent or not bent, with no small joints; 

 rarely not bent, and with one small joint. 



Female. — Oviduct proceeding from the tip of the abdomen. 



