Pcn/hous.] BRITISH ICHNEUMONS 47 



it from Xyphidria camelus and Ratzeburg from Bombyx pini, in Germany. 

 It is recorded from the Lands End district by Marquand, Ivybridge in 

 May and Bickleigh in June by Bignell, as bred in Devon from bramble 

 sticks perforated by " one of the small wasps" by Parfitt, and at Norwich 

 by Bridgman. I have seen specimens taken by Evans at Queensferr)' in 

 the middle of August, Birmingham by INIartineau, Ciuestling by Bloom- 

 field, Felden in Herts, by Piftard, Greenings in June by W. Saunders, at 

 Ely by Cross, the New Forest by Miss Chawner, on the window of Skip- 

 worth Vicarage, Yorks, by Ash, at Bury St. Edmunds and Aldeburgh in 

 September bv Tuck, Shere by Capron ; and others bred at Oxford from 

 bramble stems in June and July by Hamm, a female bred from osier at Cam- 

 bridge earlv in July by I'hornhill, and both sexes bred early in June at 

 Blackheath from an apple branch by Beaumont. It has occurred to me 

 at Rvde in the Isle of Wight, Lyndhurst and Knight Wood in the New 

 Forest, and at Dennington and Lakenheath in Suffolk. Rosse Butterfield 

 has bred it from bramble stems at Wilsden in Yorks, in the middle of 

 June. 



Veroeff at first (Verb. pr. Rheinl. 1891, p. 17) considered this species 

 the commonest of its genus in the cells of the Aculeata in Riibiis twigs at 

 Bonn. He savs it is parasitic upon Che^'ricria utticolor ( Pemphredon shiick- 

 ardtj, Stigjuus pendulus fSolskviJ, Psen atratus, Dlb., Pterocheilus (Odyn- 

 erusj laevipes and Xiphydria camelus. Its occurrence in those oi P. havipes 

 he regarded as of especial importance, since it was found behind four 

 cells each containing a full-grown host-larva; here a female had emerged 

 during the spring of 1 8go, but had been unable to effect an exit and had 

 consequently died /// silu, since the intervening lan-ae had not emerged 

 at all that summer. He had observed a similar phenomenon in the case 

 of P. nnifonuis. P. fiiediafor, he adds, shows distinct proterandrie, males 

 emerging during the first, and females during the second, week in May. 

 Later (^Zool. |ahr. i8g2, p. 741), he states that this species only occurred 

 to him singly, whereas P. diviuator was abundant, in Ruhus stems. 



3. varius, Gvav. 



Ephialtes varius, Gr. I. E. iii. 254 ; Tasch. Zeits. Ges. Nat. 1863, p. 254. <? ? . 

 Pcrithous varius, Holmgr. Sv. Ak. Handl. 1860, n. 10, p. 16, .f ?; cf. Thorns. 

 O. E. viii. 745. Piiiipla dccorata, Ratz. Ichn. d. Forst. ii. 96. 



Head with the mouth and all the orbits stramineous; ^ with whole 

 face, 9 ^\'ith two dots beneath the scrobes, concolorous; clypeus apically 

 subtmncate and hardly at all depressed. Antennae shorter than the bod)', 

 infuscate; scape whitish beneath; basal flagellar joints of 9 pale, of (J 

 dull stramineous, becoming gradually ferrugineous, beneath. Thorax 

 black with the mesothorax nearly entirely, and sometimes the meta- 

 pleurae and -notum mainly, red ; pronotum of 9 always white ; a line 

 before and a smaller one beneath the radix, an arcuate transverse line on 

 the metathorax and sometimes a mark on the mesopleurae, flavidous- 

 white ; metanotum of 9 alutaceous and dull, of J obsoletely punctate 

 and shining. Scutellum entirely or onlv apically white, postscutellum 

 concolorous ; disc of former usually red. Abdomen broadest in the cen- 

 tre, with all the segments apicallv white-margined; terebra a little longer 

 than the body. Legs red and flavidous ; hind coxae, at least of ^ , basally 



