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INSECTS await determination. The rare Polemon liparae has been swept in the marshes at Barton Mills in the middle of June, and Dale also tells us that it has been bred from the dipterous Lipara lucms at Beccles in 1861."' The Pezomachoid Chasmodon apterus is found at Wherstead and Blythburgh ; and Aphaereta cephaloUi in the Bentley Woods and ovipositing in dipterous larvae in dung at Southwold. Goniarcha lucicola occurs among autumnal fiingi at Bramford and Foxhall ; and Dtaspasta contracta in a damp wood in the former locality in mid-October. The typical Alysla manducator is frequently found ovipositincr in dipterous larvae amongst carrion at Claydon, Foxhall, Henstead, Barnby Broad, and Tuddenham Fen ; the allied Homophyla pullata I have seen in a horse-trough in Ipswich, Phaenocarpa conspurcator ovipositing in dog's droppings, Aspilota ruficornis in Stanstead Wood and Tuddenham Fen, and once I found several specimens of what the Rev. T. A. Marshall said was A. macu/ipes in a fungus at Assington Thicks in June. At the same locality Oenone ringens has also been taken ; and the curious Chaenon anceps is not uncommon at Tostock, Tuddenham, and Lowestoft. Coelinius niger occurs frequently in marshes at Felixstowe, Dennington, and Barton Mills ; C. gracilis at Brandon ; and C. elegans is doubtless common in the Broads district. Rhizarcha stramineipes has several times been taken in the Bentley Woods, and Dacnusa abdita once or twice at Nacton. Proctotrypidae Very little is known of the British Proctotrypidae, which have never been adequately mono- graphed ; and consequently I am greatly indebted to the late Rev. T. A. Marshall, whose contribu- tion on this subject was, I believe, to have appeared in Andre's great Species des Hyminoptires d'Europe, for kindly examining and naming the fifty kinds enumerated in the following list, only two of which had been previously recorded hence by Curtis. These interesting little creatures are, for the most part, parasitic upon the eggs of other insects and, since more than one often find sustenence in a single moth's egg to supply the whole of their larval appetite, the minute size of these ' Fairy Flies ' may be easily imagined ; but their beautiful and varied structure is only to be appreciated through the microscope. Their classification is still to a great extent in a state of chaos, from which it may be expected to emerge on the completion of Dr. KiefFer's perhaps too elaborate European Monograph. We are indebted to Mr. A. J. Chitty for the revision of our species, and those not here bearing a distinctive name will shortly be described by him. In the subfamily Proctotrypinae, the typical genus is represented in Suffolk by Proctotrypes niger, which has occurred to me in Tuddenham Fen and to Tuck at Tostock ; its var. a was swept at Needham Market, and the var. /3 taken on umbelliferous flowers on the coast at Felixstowe. Tuck has also taken P. ater, Nees, at Tostock in May and P. buccatus, Thoms., in September ; I have found the latter at Whitton and Dodnash. The first of Mr. Chitty 's new species was also taken by Tuck in an old beehive in Bury St. Edmunds, and I discovered the second in a dead rabbit in the Bentley Woods.^* P. kngicornis, Nees, is common, and has turned up at Bentley Woods on fir trees, at Felixstowe, Claydon, and Aspall Wood. P. brevipennis, Latr., was once swept at Westleton by Mr. Elliott, and I caught it running on Foxhall Plateau in July 1904. The handsome P. gravidator, L., is not uncommon at Foxhall, Brandon, Herringswell, Belstead, and on the Kessingland cliffs ; whilst an allied species — Chitty 's third — was in my sweep-net in Tuddenham Fen on 23 August 1905. P.pallidipes has only been found at Wherstead and Barton Mills ; and P. viator, which destroys wireworms, at Ipswich and Tostock. P. calcar, Hal., is also found at Tostock and Barton Mills ; but P. laricis, Hal., is confined to the Ipswich district, Bentley Woods, Bramford, and Bourne Bridge. It is P. parvulus, Hal., that destroys the larvae of Orchesia micans in fungi on elm, in the same locality. Chitty's fourth species I swept in a little alder wood at Bramford ; ^' and his fifth occurred to me on long grass at Wortham early in June 1 900. Codrus apterogynus, Hal., and Lagynodes palUdus, Boh., are not infrequent, the former at Southwold, Corton cliffs, Sproughton, and Claydon, the latter in the Bramford marshes and amongst moss. Tricho- steresis nitida. Thorns., has been taken at Nacton ; T. Forsteri, Kief., swept at Southwold in August 1904; Megaspilus alutaceus, Thoms., on the cliffs at Corton; M. halteratus. Boh., in the Bentley Woods ; M. rufipes, Nees, among moss at Ipswich ; and the apterous form of M. thoracicus, Nees, in a marshy wood at Bramford. The interesting and perhaps fossorial Bethylus fuscicornis, Jur., is recorded by Curtis, under the name B. punctatus^^ from rushes on the beach at Covehithe, and it is common at Ipswich, Bentley Woods, and Oulton Broad ; its for-long-intermixed cousin, B. cepha- lotes, Forst., has been taken at Brandon in the north and Sudbury in the south. Of the Dryininae, Chitty has recorded '^ Gonatopus striatus. Kief., from Brandon in May, and G. sepsoides, Westw., from Lowestoft. To the genus Antaean he has paid considerable attention, and has just published " Cf. Ent. Mo. Mag. 1893, p. 115. »» Ibid. 1907, p. 50. " Ibid. 1900, p. 42. " Brit. Ent. 720. " Ent. Rec. 1907, p. 8 1. 119