BRITISH ICHNEUMONS. 253 



Holmgren mentions a variety with the internal orbits and most of the 

 scape red. I have followed him in referring P. Iiybridus to the present 

 species, since he had examined typical examples, although Wesmael's 

 description, " post-petiolus aciculatus .... stigmate sordide rufo," 

 etc., with no mention of the produced cheeks, does not accord well 

 therewith. 



This species superficially strongly resembles P. semiviilpinus and P. 

 plaiiifrons^ but may at once be distinguished therefrom by the posteriorly 

 narrowed head, the post-petiolar sculpture and the peculiar armature of 

 the ? coxae. 



Doubtless one of the commonest British species of the genus, occurring 

 upon flowers of Angelica syivesfiis and upon herbage in marshy situations. 

 Mr. W. W. Esam has taken it, at Ewhurst, in Sussex ; Mr. Piffard, at 

 Felden, in Herts. ; Mr. Bignell, at Bickleigh, in the middle of May ; 

 Mr. Donisthorpe, at Rossbeigh, Co. Kerry, in June ; Rev. T. A. Marshall, 

 at Cornworthy, near Totnes ; and I have found it commonly, in Barnby 

 Broad, in Suffolk, in July and August, as well as at Henstead, in the same 

 neighbourhood. It is, however, recorded from neither Norfolk nor Essex, 

 but is widely distributed on the Continent. 



13. modestus, JVes/n. 



Phaeogencs /uodesttis, Wesm. Nouv. M6m. Ac. Erux. 1844, P- '93 > Eul. Ac. Brux. 

 1848, p. 323, ? ; Bridg. Trans. Ent. Soc. 1886, p. 336 ; Berth. Ann. Soc. Fr. 1S96, 

 P- 379> i ? ; Thorns. 6. E. xv. 1652, excl. S. 



Head black, a little buccate posteriorly ; cheeks short and somewhat 

 broad ; palpi pale ; mandibles red or black ; frons very finely punctate. 

 Antennae piceous ; 9 , with basal flagellar joints red and the central ones 

 more or less distinctly white. Thorax black ; notauli elongate ; meta- 

 notum sub-rugose with complete areae ; areola about as broad as long, 

 hexagonal or nearly pentagonal ; petiolar area not elongate, a little dilated 

 basally. Abdomen with sparse scattered punctures ; post-petiole irregularly 

 aciculate ; second segment longer than broad, the remainder transverse ; 

 5 with the four basal segments red, those of S varying from piceous with 

 the incisures rufescent to the second and third mainly red. Legs red ; 

 coxae and trochanters mainly black ; $ hind coxae with a short, oblique 

 cristula, resembling an acute tooth ; ^ with hind tarsi, apices of their 

 femora, and of their tibiae, infuscate. Tegulae black ; radix white, stigma 

 piceous ; nervellus post-furcal. Length, 7 mm. 



I have followed Bridgman in describing the ^ as differing in colour 

 from the ? only in respect to its legs and abdomen, since he bred both 

 sexes at the same time. Thomson attributes to it a male with white 

 clypeus and basally infuscate hind tibiae. 



It differs from the three following species in its elongate notauli, and 

 alutaceous or, as Bridgman terms it, finely granular abdomen. 



This species was introduced as British by Bridgman (/oc. cit.) on the 

 strength of specimens bred by Mr. W. H. B. Fletcher, from Euchromia 

 Jlainiiteana, from Rannoch, in June ; and there is an example of both 

 sexes, probably from the same source, in Dr. Capron's collection. On the 

 Continent, it has a restricted range through France and Belgium, but has 

 not been there bred. 



