Adelognathus | BRITISH ICHNEUMONS. 319 

or finely punctulate with the petiolar area elongate and discreted 
(Thoms.). Abdomen petiolate, ovate in both sexes and broadest apically, 
shining and nearly glabrous ; basal segment somewhat slender, gradually 
a little explanate apically, with spiracles beyond centre ; postpetiole short 
and_ parallel-sided, obsoletely sulcate and bicarinate discally, of 
narrower and very slightly explanate ; second segment very finely punc- 
tulate with a larger or smaller discal mark or whole dorsum rufo-castaneous, 
the following discally concolorous, with @ anus entirely stramineous ; 
terebra shortly exserted, infuscate and reflexed. Legs fulvous or pale 
stramineous with tibiae, trochanters and anterior coxae paler; hind coxae 
often basally infuscate. Wings ample and hyaline; stigma pale piceous, 
radix and tegulae white; areolet pentagonal or subtriangular, sessile ; 
nervellus opposite, geniculate and intercepted at its lower third. Length, 
32—4¢ mm. 
Thomson differentiates it from all the other species of the genus by the 
elongate, carinate and nearly linear petiole with spiracles at its apical 
third, the lack of areolet (mec Grav. supra), black face with epistoma pale 
in both sexes (Grav.’s @ had the face black) and the not at all exserted 
terebra. Taschenberg says the ¢@ in coll. Grav. looks like a ? lacking 
terebra. In my specimens the areolet is entirely wanting, the terebra 
does not extend to the anus, the large petiolar area is transversely sculp- 
tured, the small and indistinct areola is rough and the confluent lateral 
areae are sparsely and finely punctate. The abdominal plaga is con- 
spicuous and resembles that of Panargyrops aereus, but the ovate abdomen 
is more like that of Q P. senuipes (Ichn. Brit. ii. 102). 
It is only recorded from Silesia and Sweden. With us it is certainly 
rare ; first introduced by Bridgman (Trans. Ent. Soc. 1889, p. 433), who 
says Dr. Capron had taken a female and several males about Shere in 
Surrey ; these six examples are now in my collection with a couple of 
females I took on gth July, 1909, in the New Forest by sweeping bracken 
at Burley and on 15th September, 1910, at Covehithe Broad—probably 
walking on mud at roots of reeds—on the Suffolk coast. 
