BRITISH ICHNEUMONS. 83 



orbits flavous. Antennae black, filiform ; white-banded ; reddish beneath. 

 Thorax and scutellum red ; vicinity of the latter and the sterna black ; 

 upper areae complete, costulae strong ; areola sub-hexagonal, slightly 

 elongate. Abdomen black ; segments one to three, and base of four, 

 red ; six and seven, sometimes also five at apex, white ; post-petiole finely 

 aciculate ; gastrocaeli shallow, striolate ; thyridii linear ; terebra exserted. 

 Legs black, tibiae basally red. Areolet sub -deltoid ; stigma piceous, 

 tegulae red. 



S . Head anteriorly, excepting frons, mostly, and external orbits, white. 

 Antennae reddish beneath ; central band, and scape beneath, white. 

 Thorax black ; pronotum, humeral lines and post-scutellum white ; areola 

 sub-quadrate, basally rounded. Scutellum white. Abdomen coloured as 

 in preceding species ; post-petiole finely aciculate ; gastrocaeli sub-obsolete ; 

 seventh and eighth segments and the genital valvulae white. Legs black ; 

 front coxae whitish ; front tibiae and tarsi flavous ; all the femora black. 

 Stigma and tegulae black. Length, 8-10 mm. 



Besides the points noticed in the table, the temples are much less 

 retracted and the antennae stouter than in J/, eryihraeus. 



This and the last described species bear close analogy with those of 

 BaridmeujHon in their strongly punctate thorax and scutellum, anteriorly 

 rounded and narrowed areola and distinct sternauli, in colour strongly 

 resembling B. ridibundus, but the aciculate post-petiole at once excludes 

 them from that genus. 



Bridgman considered Crypius sangui/intor, Desv., distinct from the 

 present species, but I can see nothing in the respective descriptions from 

 which to adduce such a conclusion ; the terebra (always to a certain extent 

 retractile) appears to be a little longer in the former, which also has the 

 apical flagellar joints ferrugineous. 



Stephens says his /. ruficoUis is rare, taken at Hertford, in June ; Billups 

 took several females hibernating in tufts of grass infested by Lasius flavus, 

 at Mickleham, in February, also on the wing and by sweeping in the same 

 locality in the summer (Entom. 1882, p. 92). Ur. Capron took a male at 

 Shere (/. r., p. 139). There are specimens in Heysham's, Desvignes' and 

 Power's collections. Berth, says Bridgman bred it from Depressaria um- 

 bel/ana. I took one female on umbelliferous flowers in the Bentley Woods 

 near Ipswich, on 26th July, 1897. It has a restricted continental range, 

 from Hungary to France. 



BARICHNEUMON, Thomson. 

 Thorns. O. E. xviii. 1S93, 1959- 



Head with the face not distinctly arched, not or only slightly narrowed 

 behind the eyes ; mandibles sometimes stout, more rarely inconsiderable. 

 Antennae generally attenuate towards the apex, those of the male shorter 

 than the body. Thorax with the mesonotum not dull ; notauli often 

 distinct ; metathorax with the petiolar area always separated, impressed ; 

 the areola pentagonal or sublriangular, usually broader than long, its 

 costulae very often strong, emitted behind the middle, posterior margin 

 generally rounded. Abdomen strongly convex transversely ; j)ost-petiole 

 centrally punclulatc or smooth, not aciculate; second segment wiih thyridii 



