Page:VCH Suffolk 1.djvu/151

 INSECTS usually abundant Amblyteles paUiatorius has never been noted in the county ; though A. vadatorius on Angelica flowers and A. castanopygus (which is parasitic upon Dasypolia templi " on reed-stems) sometimes turn up in Tuddenham Fen. We also have noted A. negatorius at Claydon Bridge and the Southwold cliffs ; A. subier'tcam at Tostock with, once only, the universally abundant A. arma- torius ; and Mr. Wratislaw took A. uniguttatus at Bury St. Edmunds in the 'sixties. Bridgman named Hepiopelmui leucostigmus from Tostock, where Mr. Tuck has also found both sexes of Probolus alticola. We have only four of the eighteen species of Platylabus ; P. pedatarius is rare in the Bramford marshes and Tuddenham Fen, P. nigrkollis occurs sparingly in the Bentley Woods, and P. phaleratus, with P. a/binus, in Tuddenham Fen on dwarf-sallow bushes. Coming now to the Phaeogenides, we find our catalogue somewhat fuller with Stenodontus marginellus on Fkia sativa in the Bentley Woods ; Herpestomus brunnicorn'n on fir trees in the spring at Tostock, and Phaeogenes argutus com- monly in grass-tufts about Bentley during the winter. P. stipator hibernates, and has occurred to me on umbelliferous flowers at Ipswich in September ; P. semivulpinus once or twice to Tuck at Tostock ; P. melanogonus in May and October in the Bentley Woods, where P. infimus is common in the spring upon fir trees. P. ophthalmicus is not infrequent in August in the Lowestoft Broads and at Henstead ; and I have taken the only known British example of P. eques on the under- growth in Assington Thicks towards the end of May. P. ischiomelinus has been found about i. ury by Tuck ; P. maculicornis on fir trees at Bentley and Foxhall, with P. stimulator ; P. callopus and P. fiilvitarsis are recorded from Aldeburgh, Tostock, and Bentley Woods ; P. rusticatus, too, has been noted in June in Tuddenham Fen. Two kinds, which I have doubtfully referred to P. socius, Holmgr., and P. macilentus, Wesm. [Ichn. Brit, i, Appendix), have been noticed at Foxhall and Rush- ford respectively. Of Diadromus, we only have D, troglodytes, which is not uncommon in Bentley Woods, with D. subtilicornis from Brandon, and D. collaris from the Coniferae at Finborough, Tostock, Bramford, and Foxhall. All the five British species of the diflScult genus Aethecerus are found here ; Ae. longulus once on the banks of the Gipping at Ipswich ; Ae. placidus at Burgh Castle, Ae. nitidus about Barton Mills in June, Ae. discolor in the autumn in Bentley Woods, and Ae. dispar at Dunwich. Dicaelotus pumilus and Colpognathus divisus are abundant, with the much rarer Centeterus opprimator in winter moss. In 1895 I was so fortunate as to breed the first British specimen of Hemichneumon elongatus at Ipswich, and to take Melanomicrus Elliotti, a species new to science, in the Bentley Woods. I could give a long list of localities for Alomyia debellator in Suffolk, where it is frequent in the late summer upon umbelliferous flowers, but will only instance Barnby Broad, where it is especially common and ranges from the pale form, known as semiflava, to the very dark one, called nigra. The second sub-family, the Cryptinae, have never been noticed from Suffolk, and I have con- sequently striven to collate all the material at present available which bears upon them. Of the typical genus Cryptus, we find C. tarsoleucus commonly at Tostock, Copdock, and Sudbury ; the distinct C. viduatorius at Felixstowe, Barnbj Broad, and Farnham ; C. obscurus has been bred from the pupa of Taeniocampa instabilis in Ipswich, and is common everywhere upon hedges ; C. alba- torius has been found by Hocking at Copdock and by Tuck at Tostock ; I have, too, once taken C. tuberculatus at Ipswich. Habrocryptus porrectorius is often beaten from oak trees in the Bentley Woods, and Pycnocryptus peregrinator occurs in the spring at Belstead and about Tostock. Agrothereutes batavuSj which is the brachypterous form of Spilocryptus incubitor, is found about Ipswich in Septem- ber, and S, cimbicis occurs commonly in the hedge cocoons of Trichiosoma at Westerfield and Debenham. S. abbreviator, which is now considered identical with S. Hopei, is not rare at Ipswich and the Bentley Woods ; and I have several times bred Gambrus ornatus from Burnet cocoons on the grass-stems in Oulton Broad in July. The handsome Aritranis carnifex is sometimes swept in the marshes of Brandon, Oulton Broad, and by Elliott in Tuddenham Fen ; while the delicate A. signatorius may be beaten from poplar trees at Foxhall and Tostock, where it preys upon the social wasps. The very rare Nematopodius formosus, which was only known as British by one un- localized specimen in the British Museum, turned up in my house at Monk Soham, on the upper windows in July 1905. Among the Phygadeuonides, we find that Plectocryptus digitatus occurs around Ipswich, Cratocryptus stomaticus in the Bentley Woods and the Bramford marshes, C. sub- petiolatus at bees' nests in the former locality, and C. parvulus at Henstead and Barnby Broad in August. The curious aquatic Trichocryptus cinctorius has been dredged out of the ditches at Barnby and Oulton Broads, and Microcryptus graminicola found in Holbon Marsh near Beccles. M. rufipes and M. perspicillator are uncommon in Bentley Woods, M. abdominator and M. nigrocinctus turn up everywhere; M. basizonius has been noticed only in Dodnash Wood, and M. bifrons only at the roots of Juncus in a swampy meadow at Wherstead. The very distinct Acanthocryptus flagitator is found at Harkstead, Tostock, and Barton Mills ; A. quadrispinosus in tufts of grass during the winter in the Bentley Woods, and A. nigricollis on Heracleum flowers by Tuck at Tostock. Glyphicnemis vagabunda " See Newman, Moths, 279. I 113 15