Phygadeuon.] BRITISH ICHNEUMONS. lOI 



This species is very similar to P. dimidiatiis, hut usually the four basal 

 antennal joints, the second and basal half of the third segment, are red ; 

 the wings are abbreviated and ai)ically rounded, hardly reaching to the 

 apex of the first abdominal segment. The metathorax is slightly more 

 rugose than that o{ P. fumator. 



The only specimen I have seen of this species agrees exactly with the 

 above very short description. The head is very closely punctate, dull and 

 decidedly broader than the cylindrical thorax, which has the mesonotum 

 dull and closely coriaceous, the scutellar fovea very large, the areola 

 strongly elongate, basally rounded and apically truncate, parallel-sided 

 and emitting the distinct costulae far before its centre ; the post-petiole is 

 dull, finely and very closely i)unctate, with weak carinae and its lateral 

 margin bordered to the narrowly red apex ; the red segments are distinctly 

 punctate and the remainder glabrous, the terebra is al)out half the length 

 of the obovate abdomen ; and the wings, with entire venation, are strongly 

 infumate throughout, with the radix and base of the concolorous stigma 

 pure white. The antennae are more slender with the basal flagellar joints 

 much longer and the vertex of the head narrower than in P. fumator, 

 which also has the legs stouter and their tarsi shorter. 



Bridgman tells us (loc. cit.) that he took his semi-apterous P. fumator 

 by beating towards the end of August ; and it is probably this which he 

 records (Trans. Norf. Soc. v. p. 613), from Mousehold near Norwich in 

 August, as P. rotundipennis with a tjuery, though the synonymy between 

 his description and that of Thomson appears sufficiently obvious ; the 

 former adds that Cameron took three examples in Scotland. Upon my 

 only visit to Mousehold Heath I was so fortunate as to capture a specimen 

 of this interesting species — a form intermediate between the macropterous 

 and brachypterous Cryptinae — in its original British locality, in a gravel 

 pit, on 9th June, 1901. Elsewhere it has only been noticed in Sweden. 



PANARGYROPS, Forster. 

 Forst. Verb. pr. Kheinl. 1S6S, p. 182 ; Leptocryptus, Thorns. O. E. v. 521, x. 963. 



Face with long grey or white pilosity ; eyes large and glabrous, their 

 posterior orbits not situated above the bases of the mandibles ; cheeks 

 short ; clypeus rarely bidentate. Antennae very slender. Thorax immacu- 

 late ; notauli extending beyond the centre of the mesonotum ; sternum 

 with grey pilosity ; areola emitting costulae from before its centre ; 

 apophyses wanting. Abdomen nearly always slender, elongate and sub- 

 cylindrical ; basal segment elongate, with the spiracles generally central 

 and its membrane short \ second segment with spiracles far from the 

 margin and very often aciculate throughout, the third with epipleurae 

 narrow ; terebra deflexed and often elongate. Legs, especially the femora, 

 very slender, with claws and calcaria very fine ; tibiae not spinulose. 

 Wings somewhat narrow, with the areolet hardly entire externally ; the 

 parallel nervure nearly always emitted from the centre of the brachial cell ; 

 lower angle of the discoidal cell acute and its fenestra often centrally 

 corneous. 



The species of this unusually natural genus are very distinct from those 

 of both Phygadeuon, in their much more slender form, elongate and rarely 



