2IO BRITISH ICHNEUMONS. \Pezomachiis. 



September, from the interwoven cocoons of Apanieles spiirius, Wesm. 

 P. aniiiiitius is recorded from Norvvicli (Bridgman) ; St. Leonards and 

 Bo-peep in Sussex (Vict. Hist.) ; and Piffard has given it to me from 

 Felden in Herts. 



31. vagans, 0/iv. 



Ichueu7non vagans, Oliv. Encycl. meth. vii. 204. Pezomachtis vagans, Gr. I. E. ii. 

 890, excl. varr. ; Forst. Wiegm. Arch. 1850, p. 203 ; Voll. I'inac. pi. xii. fig. 8, 9 (nee 

 Rosenhauer) ; Thorns. O. E. x. 1013, 6 9; Bridg. Trans. PJnt. Soc. 1S83, p. 163. 6. 

 Var. J\ hicolor, var. 2, Gr. I. E. ii. 903 ; P. lalrator, Forst. Wiegm. Arch. 1850, 

 p. 215; Ratz. Ichn. d. Forst. iii. 148, 9. Var. P. calvus, Forst. Wiegm. Arch. 1850, 

 p. 205, 9; Thoms. O. E. x. 1014, i 9. Var. /'. vagans, var. 2, Gr. I. E. ii. 891 ; 

 P. discedens, Forst. Wiegm. Arch. 1850, p. 204, 9. 



Head with the genal sulcus deeply impressed, its costa continuous and 

 the clypeus apically rounded. Antennae slender, with the basal flagellar 

 joint about as long as the second, and the fifth twice longer than broad. 

 Thorax somewhat elongate ; the centrally foveate meso- very slightly 

 longer than the meta-notum ; petiolar area oblique and distinct, dull and 

 finely punctate, its basal costa distinct but not prominent laterally ; aceta- 

 bula scarcely extending beyond the centre of the mesosternum. Scutellum 

 very distinctly represented by a prolongation of the mesonotum, from 

 which it is not discreted. Abdomen sub-glabrous and finely reticulate, 

 with short, scattered and erect pubescence ; basal segment almost evenly 

 explanate throughout, with the post-petiole sub-transverse and spiracles 

 not or only slightly projecting ; terebra about as long as the basal segment. 

 Legs slender, with the front tibiae not inflated. 



Head black, with the palpi infuscate. Antennae piceous, with the fla- 

 gellum becoming rufescent towards the base. Pro- and meso-thorax red, 

 sometimes with pleural black markings ; metathorax entirely black. Ab- 

 domen black with the two basal segments, and more or less of the third, 

 red. Legs testaceous ; the hind or posterior more or less infuscate or 

 castaneous. 



$ . Winged ; finely and densely punctate and somewhat dull. Head 

 with the vertex sub-quadrate, anteriorly sub-rotund and broader apically ; 

 cheeks slightly rounded but not buccate ; clypeus discreted and apically 

 rounded ; epistoma protuberant, frons centrally canaliculate. Antennae 

 as long as the body, slender, slightly incrassate before the centre and 

 apically attenuate ; two basal flagellar joints of equal length, the first about 

 four times longer than broad, the ninth and tenth externally emarginate. 

 Thorax elongate, about a third longer than high ; mesothorax apically 

 discally foveate, with faint notauli ; metanotum with no areae ; petiolar 

 area sub-oblique, its basal costa strong. Abdomen with the basal segment 

 about as long as the hind coxae, with somewhat prominent spiracles ; 

 post-petiole not broad ; the second sub-quadrate and coarsely punctate ; 

 remainder transverse ; the fourth and following with short and scattered 

 pilosity. Legs slender. Wings of normal length, but narrow ; stigma 

 elongate and not broad, emitting the radius from its centre ; areolet 

 pentagonal with the outer nervure wanting ; nervelet wanting ; nervellus 

 opposite and not intercepted. 



Black, with the second, third and apex of the first segments red. Legs 

 pale red, with the hind femora and tibiae piceous, and the intermediate 

 also in a less degree ; tarsi infuscate. ^Vings hardly infumate with the 



