192 lU>ilTISH ICHNEUMONS, [Angttia 



aiul not broad ; face transverse, cheeks somewhat eIon<rate ; palpi and 

 most ot mandibles llavidous. Antennae lonj^er than half body and apic- 

 ally subatteiuiate, with underside of scape in both sexes nearly entirely 

 or at least apically stramineous. Thorax cylindrical ; metathoracic areae 

 distinct, with costulae always strong and areola usually apically incom- 

 plete. Abdomen narrow and in 9 apically subcompressed ; postpetiole 

 subconvex, parallel-sided and about as long as broad ; second segment 

 distinctly longer than broad, third subquadrate ; terebra half length of 

 abdomen and only a little curved. Legs fulvous ; anterior coxae and 

 trochanters stramineous, with the former usually basally black; hind 

 coxae and tibiae black, the latter at their base and broadly in their centre 

 stramineous- white ; hind femora always basally, and rarely also apically, 

 nigrescent ; their tarsi infuscate, with joints basally paler. Stigma and 

 tegulae stramineous ; outer radial abscissa apically curved and a little 

 longer than the basal ; areolet petiolate and regularly triangular, emitting 

 recurrent nervure at or immediately beyond its centre ; nervellus subpel- 

 lucid. Length, about 5 mm. 



This is the typical species of a difficult griai]), which differs from the 

 rest of the genus in having the head distinctly constricted behind the 

 eyes and usually the scape pale beneath ; the present and two following- 

 species are distinguished from the remainder of this group by having the 

 alar areolet regularly triangular, emitting the recurrent nervure almost 

 exactly from its centre, by having the anterior trochanters entirely stra- 

 mineous or citrinous, by their length of 5 mm. and by the terebra being 

 about half the abdominal length. A. /Ines/ra/ix is known by having its 

 tibiae and slender femora fulvous, the hind femora always basally nigres- 

 cent, the hind tibiae nearly pure white with their apices broadly and a 

 mark before their base quite black, by the stramineous stigma, the apic- 

 ally curved outer radial abscissa being little longer than the inner, by its 

 subelongate cheeks and distinct costulae. 



It is supposed to be one of the commonest of all Ichneunionidae 

 throughout the whole of Europe, as Holmgren says "a primo vere usque 

 adaulumnum"; but there are few records, it has only been bred from 

 Hydrdlia griseola (Brischke), Plcrophorus microddctylus and the genera 

 Acalla and Gracilaria (Gaulle); and in the course of fifteen years 1 have 

 not captured fifty specimens in Llngland. It was first known to be indi- 

 genous from Grayenhorst's mention of it from Netley in Shropshire in 

 1829 ; and it is recorded from Cornwall, Devon, Norfolk, etc. As hosts 

 have been instanced Botys vcrticalis and Dcprcssaria hypericclla (Entom. 

 1881, p. 140), Chorcuks scintilliilana (Bridgman), Tortrix cos/ana and 

 Xylopoda Fahrkiana (Bignell). I possess a himdred specimens, about 

 half of which were reared by Barrett from Sen'coiis abscissaiia, Grav.; by 

 Ash from Calrophom pyirhuUpcnndla at Skipworth in Yorks ; by Blair 

 on 28th October, 1903, from a Tortricid in the curled leaf ot Raniiuciihts 

 scekratus at Hampstead, London, and both sexes from larvae feeding 

 in privet berries at Wilmslow in Cheshire; and by Bankes on 2ist-23rd 

 June, 1 90 1, from larvae of HypercalUa Christie) nana, L., at Ashford 

 in Kent, with a score from Gclcchia' tetragoncUa, Stn., in the Isle of Pur- 

 beck, Dorset, on I ith July and between 6th June and loth July. The 

 cocoon is 5I mm. long by linmi. broad, cylindrical and clear brown, 

 with a narrow white central girdle, the whole densely covered by fine 

 white interwoven strands. 1 have seen it from Sussex (Esam), Cornwall 



