BRITISH ICHNEUMONS. 263 



as base of latter, black ; anterior coxae and trochanters of ^ stramineous ; 

 coxal carina of ? terminating in a small tooth. Stigma pale fuscous ; 

 radix and tegulae white, latter fulvous in ? . Length, 5-9 mm. 



The size and sculpture are nearly identical with those of P. callopus, 

 from which the constant colour of the abdomen of the $ , and of the hind 

 legs in both sexes, will distinguish it. Holmgren especially points out that 

 the apical nigrescence of the hind tibiae of the c? never extends to their 

 centre nor beyond it, as is the case in P. caNopHS, which occasionally has 

 them centrally pale red and not white as in typical examples. 



I had the good fortune to take an example of this species, which has not 

 before been recorded with certainty from Britain, though very probably 

 not uncommon here, at Tuddenham Fen in Suffolk, in the middle of June ; 

 Mr. E. C. Bedvvell took another at Montrose during hibernation in 

 December ; and, at Scarborough towards the end of August, Mr. E. A. 

 Elliott took a female, which appears intermediate between the present 

 species and F. Jiitidiventris, Holmgr. On the Continent it occurs in 

 Switzerland, Belgium and Sweden, but has not yet been bred. 



30. nitidus, Bridg. 



Phaeogenes nitidus, Bridg. Trans. Ent. Soc. 1SS6, p. 337 ; Berth. Ann. Soc. Fr. 

 1896, p. 3S7, <J. 



Head transverse, sub-buccate posteriorly ; black, with mouth, clypeus, 

 centre of mandibles and more or less of the facial orbits, flavous ; frons 

 nitidulous, finely and sparsely punctate ; clypeus apically truncate. An- 

 tennae nearly as long as the body ; red beneath, with the scape flavous- 

 dotted. Thorax and scutellum entirely black ; metanotum nearly glabrous ; 

 upper areae complete ; areola transverse, reniform, basally rounded and 

 apically sinuate. Abdomen black, with incisures of first and second seg- 

 ments rufescent ; post-petiole centrally depressed and obsoletely punctate, 

 shining. Legs red ; coxae and base of trochanters black ; hind femora 

 more or less apically, apex of their tibiae and their tarsi, infuscate. Stigma 

 and tegulae nigrescent. Length, 6 mm. 



This $ may at once be known from the remainder of those with sparsely 

 punctate foreheads by its black coxae and trochanters. It appears to bear 

 a close superficial resemblance to P. fnscicor?iis, from which the sub- 

 glabrous frons and pale capital markings will distinguish it. 



Two males were bred in Britain, perhaps at Worthing, from an unidenti- 

 fied lepidopterous host, by Mr. W. H. B. Fletcher, in 1885 ; it is unknown 

 upon the Continent.^ 



DIADROMUS, IVesmaeir- 



Wesm. Nouv. Mem. Ac. Erux. 1844, p. 207. 



Head somewhat tumidulous, not broader than thorax, scarcely nar- 

 rowed behind the eyes ; vertex broad ; clypeus slightly convex, broader 



1 Since writing the above I have seen this species in Bridgman's collection, though I had no time 

 to examine it. He evidently subsequently sent it to Lund, and has labelled it, " Thomson says 

 Pkygadeiion, spiracles circular." I sliall hope to clear up the synonymy at some future time. 



2 Ichufiimon abtlominalor, Ste. 111. M. vii. 202, (f, and /. ficipcs, Ste. lib. cit. 204, ?, are probably 

 cognate species of this genus ; but, since the types appear to be lost and the descriptions inadequate, 

 it is impossible to attempt their synonymy. 



X 



