Pezotnachus.] BRITISH ICHNEUMONS. 233 



similar to that of P. ana/is, though the hyah'ne wings arc longer, the stigma 

 broader, the legs yellow with black coxae, and the central segments 

 differently coloured. It is certainly synonymous with P. viduus^ which 

 differs only in having the metathoracic costa centrally weaker and the 

 antennae darker. 



This is not a very common species with us. Bridgman took three 

 females at Norwich ; it is recorded from Essex in the Victoria History ; 

 and Elliott has seen an example which was taken by Routledge at Hayton, 

 near Carlisle, early in April, 1900. Tomlin has found it in the Isle of 

 Mull, in August ; Chitty, one at Faversham in May ; and there is a long 

 series from Surrey in Capron's collection. It has only occurred to me in 

 August and September, by sweeping low herbage at dusk and beating 

 holly in the Bentley Woods, once in company with P. corriiptor ; I have 

 also swept it in the Blean Woods in Kent, and at Hursthill, in the New 

 Forest. It has been recorded as doubtfully bred from Gyrimis naiator 

 (cf. p. 160, ante). 



53. fasciatus, Fab. 



Mutilla melanocephala, Schr. En. 416, n. 841, ? (?). lihncumon fasciatus, P'.ab. E. 

 S. ii. 191 ; Panz. F. I.G. Ixxix. 14. Fezoiiiachus fasciatus, ^x. I. E. ii. 889; Zett. I. L. 

 372 ; Fiirst. Wiegm. Arch. 1S50, p. 217 ; Smith, Trans. Ent. Soc. ser. 2. v. 209 ; \'oll. 

 I'inac pi. xii. fig. 7, ? ; Thorns. O. E. x. 1013, $ $. Heniiniachits fasciatus, Ratz. 

 Ichn. d. Forst. iii. 157 ; cf. iii. 149, $ ?. Hentiteles luieiveiitris, (Jr. I. E. ii. 812 ; 

 Tasch. Zeits. Ges. Nat. 1S65, p. 133 ; Schm. Term. Fiiz. 1897, pp. 125 ct 543, $ . 



9 . Head with the genal costa inflexed and its sulcus deeply im- 

 pressed ; clypeus apically roimded. Antennae elongate and slender, with 

 the basal flagellar joint longer than the second, and the fifth fully twice 

 longer than broad. Mesonotum longer than broad and as long as the 

 metanotum, often centrally canaliculate ; petiolar area punctate and dull, 

 slightly shorter than the notum, its basal costa well defined, especially 

 laterally ; acetabula scarcely reaching beyond the centre of the meso- 

 sternum. Scutellum tuberculiform. Abdomen sub-glabrous, nitidulous, 

 indistinctly reticulate, diffusely punctate and pubescent ; basal segment 

 elongate with the post-petiole longer than broad, with the spiracles more 

 or less distinct ; terebra about as long as the basal segment. I-egs some- 

 what slender, the front tibiae scarcely inflated. 



Head black, with the palpi piceous. Antennae red, with the scape 

 nigrescent. Thorax and abdomen bright rufo-testaceous, latter with the 

 third segment always strongly fasciated with deep black ; rarely the fourth 

 and also fifth with a dark shade. Legs red, the hind ones sometimes 

 partly infuscate. 



$ . Mandibles basally tuberculate ; clypeus not apically dentate. 

 Metathorax elongate and finely punctate with the petiolar area well 

 defined, centrally sub-bicarinate and basally distinctly costate ; areola 

 sometimes delineated. Abdomen sub-de()lanate, not apically dilated, sub- 

 glabrous and nitidulous ; basal segment finely and distinctly punctate, 

 with the petiole narrow, bicarinate and the post-[)etiolc half as long again 

 as broad, spiracles central and prominent ; second segment finely rugulose 

 and dull. Wings ample and sub-hyaline ; stigma not broad, emitting the 

 radius from about its centre ; parallel nervurc emitted from centre of 



