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 



