A SYNOPSIS OF BRITISH PROCTOTRYPID.E (OXYURA). 183 



taken by sweeping, usually in shady glades of woods in the 

 afternoon, and I have dates from May 15th pretty continuously 

 to October 5th. Bookley (Morey), Surrey (W. Saunders), Herts 

 (Piffard), Suffolk (Tuck), Cambridge (Lyle), Derby and Notts 

 (Carr), Yorks (Fordham). I have taken it at Newport, Eyde 

 and Norton in the Isle of Wight, Lyndhurst, Wicken Fen, West 

 Leake and Edwinstow in Sherwood, all over the light lands of 

 Suffolk, at Killarney and on Clare Island in Ireland, and Elliott 

 has sent it from Banchory in the Scots highlands. 



6. EXALLONYX ATER, NeSS. 



Coirus ater, Nees, I.e., p. 359, <? 2 . Proctotrupes ater, Hal., 

 I.e., p. 8 ; Voll., I.e., p. 28, pi. xix, fig. 4. Exallonyx filicornis, 

 Kief., Andre, I.e., p. 341 ; cf. p. 325, $ ? . 



I do not consider Kieffer has satisfactorily demonstrated 

 distinction between this species — which he did not know and 

 places as insufficiently described in his subgenus Cryptoserphus, 

 solely upon van Vollenhoven's (often faulty) authority — and that 

 of Haliday, followed by Thomson. Frohawk, in the record 

 noted below, refers to an apterous form of this species, but he 

 does not make it plain whether it were an atrophied imago, like 

 Proctotrypes curtipennis, or merely a pupa which had failed to 

 attain maturity. 



Germany, where Nees says it infests the larvae of MycetopliiUe 

 in fungi, particularly Boleti, about which he took it frequently 

 in woods during October, as well as in copula on June 19th, 

 1810 ; Finmark and a variety in marine detritus in Heligoland. 

 Ireland (Haliday) and England (Walker). Not very common 

 with us ; Olveston in Gloucester (Charbonnier) ; Ashtield Parva 

 in Suffolk (Elliott) ; Wymondley in Herts (Butler), West Leake 

 woods in June and September (Carr) ; Pakefield cliffs on sand 

 and Lowestoft dunes among marram-grass; Brandon staunch, 

 on long grass at Ousden, once at Monks Soham on under-side of 

 lime-leaf at dusk, in Suffolk ; and in Guestliug wood near 

 Hastings. It is on the wing from June 11th to September 24th. 

 Cf. Frohawk's breeding at Eltham in Kent from the larvae of the 

 rove-beetle, Creophilus maxillosus, in the ' Entomologist,' 1880, 

 p. 225. 



7. Exallonyx ligatus, Nees. 



Codrus ligatus, Nees, I.e., p. 359, ? . Proctotrupes ligatus, 

 Hal., I.e., p. 8, > ?; Voll., lc, p. 31, pi. xix, fig. 9, ?. 

 Exallonyx ligatus, Andre, I.e., p. 344. 



From Sweden and France through Spain and Italy to 

 Algeria; common on autumn fungi in woods; Vollenhoveu 

 records it from the British fungus-gnat, Mycetophila punctata, 

 Mg. Very frequent everywhere; found in rotten seaweed, fungi, 



