70 BRITISH ICHNEUMONS. [Pimp/a. 



Chippenham Fen, in Cambs., on i6th June, 1899 ; and one female 

 from reeds long after dark in Herringswell Fen, in Suffolk, on 21st 

 August, 1905 ; but in the latter locality on 4th July, 1903, it was very 

 abundant on reeds in the afternoon, and I swept 1 3 males and 6 females. 

 One female, named P. detrita by Bridgman and recorded as such by Big- 

 nell (Trans. Devon. Assoc. 1898, p. 502), was bred by the latter in Devon, 

 on 30th June, 1883, from Chilo phragi/u'tclhis, which occurs atTuddenham 

 Fen, within a mile or so of Herringswell, but I have never taken 

 P. melanoccphala there during my frequent visits ; nor have I found it in 

 the Lowestoft Broads, where L. obsokla occurs. The A-ar. deplanata I 

 swept from rank herbage in a very boggy part of Surlingham Marsh, in 

 the Norfolk Broads, on loth June, 1901. 



12. arundinator, F^^b. 



Pinipla antndinator, Fab. Piez. 116; Gr. I.E. iii. 177; Tasch. Zeits, Ges. Nat. 

 1865, pp. 59 et 265; Brisch. Schr. Nat. Ges. Danz. 1864, p. 113; Schm. Zool. 

 Jahrb. 1888, p. 500,?; Opusc. Ichn. 1045, j et 1078,?; ? Holmgr. Sv. Ak. 

 Handl. 1860, n. 10, ? . P. interntptecallosa, Strobl. Mitt. Nat. St. 1901, p. 14, ? . 



A black species with badious abomen, entirely red legs and explanate 

 onychii. Head black with the palpi and apices of clypcus stramineous ; 

 all the orbits immaculate. Antennae basally nigrescent, centrally infus- 

 cate-ferrugineous and apically paler. Thorax immaculate; nietathorax 

 elongate with the areola laterally parallel and distinctly costate; of 9 dull 

 and rugose, basally with scattered punctures and apically finely transverse- 

 rugose; of ^ diffusely punctate; spiracles circular. Scutellum black. 

 Abdomen of 9 nearly double length of head and thorax, oblong and a 

 little broader than the latter, variable in colour, rarely entirely black, with 

 the segments always apically black and elevated ; of S '"lOt very coarsely 

 punctate; basal segment bicarinate, black, apically subexcavate and some- 

 times castaneous; second to fifth castaneous or dull ferrugineous ; fifth 

 sometimes infuscate, the following black throughout; terebra half the 

 length of the abdomen, spicula badious, valvulae black and pilose. Legs 

 quite unicolorous, fulvous-red, with at most the extreme apices of the 

 hind tibiae subinfuscate ; front femora not emarginate beneath ; apical 

 hind tarsal joint fully double length of the penultimate; tarsal claws of 9 

 distinctly lobate. Wings somewhat clouded, with the stigma dull piceous 

 or rarely dull testaceous and basally paler; radix and tegulae stramineous; 

 areolet irregular, subpetiolate ; nervellus slightly postfurcal, intercepting 

 hardly above the centre. Length, 7 — 11 mm. 



I consider it extremely improbable that the species described by Holm- 

 gren under this name is synonvmous with that of Gravenhorst : he says of 

 the "nervellus distincte supra medium fractus," whereas Taschenberg says 

 of the latter "in der Mitte oder meist deutlich darunter gebrochen"; the 

 former also says the hind tibiae are nigrescent before their base, but he 

 himself was uncertain of its synonomy and gave it as diftering from his 

 P. variabilis in its narrower body, innnaculate vertical orbits, longer tere- 

 bra, more incomplete metanotal areae and entirely rufescent posterior 

 coxae. 



This species is noted in J\IS. as undoubtedly the 9 of Colpomeria 

 (Ephialtcs) inanis, Grav., by Marshall in his Catalogue, but certainly in- 

 correctly, since its male is referred to, though very meagrely, by Schmied- 



