INSECTS 



places ; P. roborator^ Grav., has been taken by Flatten in Woodbridge ; P. puncttventris, Thorns., 

 is not rare, though mixed with P. calobata, Grav. ; P. nucum, Ratz., has been found in Monk Park- 

 Wood in June ; and Mr. Tuck has once taken P. ornata about Tostock. I bred a female of Poly- 

 sphincta multicolora, Grav., from a spider in my garden last year ; its larva is an external parasite, 

 and lies like a muffler round its host's neck. Schizopyga podagrica, Grav., has also occurred in Monk 

 Soham. The handsome Lycorina triangulifera, Holmgr., once fell to my beating-stick in the Bent- 

 ley Woods in June 1902. Cryptopimpla cakeator, Grav., and C. errabunda, Grav., have been met 

 with singly at Foxhall and Lowestoft, but are rare. L'monota is an extensive genus, and we can 

 now also claim L. leucogona and L. nitida on flowers at Monk Soham, L. trochanUrata commonly at 

 Marlesford, &c. ; Mr. Tuck has found L. deversor at Tostock ; and L. segmentator once occurred to 

 me in Assington Thicks, L. nigridens on Angelica flowers at Harkstead in September, L. dubia at 

 Brandon in June, and L. errabunda, Holmgr., in the Bentley Woods. Meniscus plantarius was once 

 found by Mr. Wratislaw about Bury St. Edmunds, and Collyria puncticeps is a common species. 

 Phytodietus obscurus occurs in Bentley Woods, and I have described Thymaris fenestralisy Mori., from 

 specimens taken on the windows of Monk Soham House in July. 



From the above account of the Suffolk Ichneumonidae, which is the best at present obtainable, 

 it will be seen that the sub-families are very unequally represented, and that they may be thus 

 summarized ; — 



Ichneumoninae ..........92 species 



Cryptinae 139 „ 



Ophioninae ........... 48 „ 



Tryphoninae ........... 89 „ 



Pimphnae ........... 87 „ 



Braconidae 



In Suffolk but little attention has been paid to this extensive family, so closely resembling in 

 structure and economy the Ichneumonidae, from which, however, its members may be known by 

 the possession of only one recurrent nervure in the fore-wing, or, in such as be apterous, by the 

 chitinous abdomen. One species is recorded hence in Wood's Insects at Home, and a few were 

 Srst described by Curtis from this county in his British Entomology ; but for the most part I have 

 ad to rely upon my own intermittent efforts at collecting and determination for the representation 

 )f the following species, which in all probability constitute about one half of the number actually 

 occurring with us. 



The typical genus Bracon is fairly well represented *•* by B. minutator, found occasionally 

 about Tostock by Tuck; B. fulvipes found here by Bedwell and myself; B. variegator, of which 

 Tuck bred one from a spider's nest in April 1902; B. stabilis, common; B. fuscicoxis, about 

 Brandon ; B. guttiger, at Nacton in May ; B. satanas, rarely ; B. fraudator and B. epitriptus, at Monk 

 Soham in July ; B. praetermissus, at Oulton Broad, and B. discoideus, on flowers at Brandon and 

 Claydon ; B. regularis, at Bramford and Foxhall ; B. variator and B. osculator are common ; B. 

 «bscurator has once occurred at Wherstead, and B. anthracinus once on herbage in the Bentley 

 Woods. Rhyssalus indagator once occurred to me at Assington in the middle of June, and Tuck 

 took Spathius rubidus at Tostock in September 1902. The common 5. exarator, which preys most 

 beneficially upon the death-watch beetle, has turned up in Dodnash Woods, and at Tuddenham, 

 where also Hecabolus sulcatus is found in August. Doryctes imperator was taken, flying in the sun- 

 shine, at Ipswich in June 1896 ; and Tuck has given me D. spathiiformis, which he bred from a 

 spider's nest at Tostock. Clinocentrus excubitor inhabits the Bentley Woods and Heterogammus dispar 

 was swept in Herringswell Fen in August 1905. The ubiquitous Rhogas circumscriptus has been 

 met with at Foxhall, Belstead, Bury St. Edmunds, and Barnby Broad ; ^^ R. armatus and R. 

 dimidiatus occur about Ipswich ; R. irregularis in the Lowestoft district, Tuddenham, and Herrings- 

 well Fens ; the rare R. nigricornis has once turned up in Barnby Broad in July, and Curtis ^ 

 describes his R. suhucola from Suffolk in the middle of May. Respecting the interesting Crypto- 

 gastres, cf. Entomologist, 1907, p. 879, where I have recorded from Suffolk Phanerotoma dentata from 

 Tuddenham Fen ; Chelonus inanitus, of which Wood says " that F. Smith took fifty at Lowestoft, 

 is common throughout the county ; C. carbonator, not rare at Bramford, Foxhall, Blythburgh, and 

 Westleton ; C. secutor, from Brandon ; C. sulcatus, common at Barton Mills, Claydon, and 

 Brandon ; and a single C. dispar at Foxhall in September. Several species of Ascogaster are also 

 mentioned : A. rufipes from Tuddenham, A. rufidens from Bildeston, A. variipes from Henstead, 

 and A. quadridentatus at Tostock, Grundisburgh, and the Bentley Woods. Of the nine British 

 Sigalphi, only four have been noted here : S. luteipes at Benacre Broad, Aldeburgh, and Kenton ; 



° Cf. Ent. Mo. Mag. 1906, p. 106. " Ibid. 1902, p. 10. 



" Brit. Ent. 512. »» Op. cit. 325, pi. x, fig. 6. 



117 



