8o BRITISH ICHNEUMONS. 



anterior femora and tibiae broadly rufescent laterally in front, or black 

 with all the femora and tibiae rufescent ; the femora are stout and the 

 hind coxae coarsely and strongly punctate, with no scopulae. Length, 

 10-13 "iri"'- 



The wings are somewhat smoky ; the post-petiole between the dorsal 

 carinae distinctly striolate ; the prothorax striolate beneath ; the frontal 

 orbits only narrowly pale in both sexes ; the sides of the breast are deeply 

 sub-rugose in ? , sparingly punctate and shining in c?. 



This species is hardly smaller than the preceding ; the antennae sub- 

 dilated before the apex, the colour of the frons and the distinct dorsal 

 carinae of the post-petiole, as well as its sub-strigose central area render it 

 at once distinct. 



The form with the legs mostly black was Gravenhorst's /. luctuosus, in 

 part ; the ? sometimes has the orbits of the eyes, and the $ the whole of 

 the scutellum entirely black. 



Stephens considered it an uncommon species about London, Evans 

 found it at Longniddry, in May, and Col. Yerbury has taken it at Kenmare, 

 in July. It has been bred from Nonagria geminipuncta and N. sparganii, 

 and has a very wide continental range. 



7. perscrutator, Wesm. 



Ichneiiinon perscrutator, Wesm. Nouv. Mt5m. Ac. Brux. 1S44, ?• 85 ; Berth. Ann. 

 Soc. Fr. 1895, p. 238, i 9 . 



Head black, not much narrowed behind the eyes ; clypeus slightly 

 depressed in the centre of the sub-truncate apical margin ; $ with a lateral 

 dot on clypeus and the internal orbits entirely white, labrum fulvous, 

 mandibles and palpi piceous ; ? with a white lunula at vertical orbits. 

 Antennae somewhat attenuate toward apex, black ; $ somewhat slender, 

 white-banded ; $ with joints six to eighteen of flagellum bearing very 

 distinct raised lines, apical joints somewhat nodulose. Thorax dull, 

 black ; $ with line before, rarely also beneath, radix and margin of pro- 

 notum white ; of ? entirely black ; metanotum scabrosely punctate, upper 

 areae complete, the petiolar discreted ; areola sub-quadrate, in $ entirely 

 glabrous and apically emarginate, its costae strong. Scutellum flat, prim- 

 rose-white with the apex black \ $ post-scutellum sometimes also white. 

 Abdomen sub-cylindrical and flattened in $, dull black, very finely and 

 closely punctate ; somewhat nitidulous towards apex in $ ; second and 

 third segments with incisures red and not deeply impressed ; fifth, sixth, 

 and usually fourth, apically in the centre, seventh entirely, white in both 

 sexes ; post-petiole closely punctate-aciculate, apical angles obtuse ; gas- 

 trocaeli small and deeply impressed, the intervening space being evenly 

 punctate in ? , sub-aciculate in c?, and broader than centre of post-petiole. 

 Legs stout, red ; hind tibiae towards the apex and the posterior tarsi in- 

 fuscate ; coxae and trochanters black, the former coarsely punctate in $ , 

 very shining, punctures only evident on the sides, with no scopulae in $ . 

 Wings hyaline ; stigma and tegulae black or piceous, latter often with a 

 white dot ; radix dark ferrugineous ; areolet of $ somewhat narrowed 

 above, emitting recurrent nervure from beyond its centre. Length, 10 to 

 12 mm. 



The $ differs from that of M. monostagon in the more slender antennae, 



