BRITISH ICHNEUMONS. I5I 



and margin of fourth, segments lighter or darker yellow, the following 

 with the apical margin rufescent. Legs black ; anterior femora apically 

 and tibiae flavidous ; hind tibiae apically black ; anterior tarsi ahnost 

 entirely, hind pair at the base only, fulvo-stramineous. Wings slightly 

 clouded; stigma fulvous, tegulae black. Length, 10-14 mm. 



The (? may be known from that of /. emancipatus, with which Holmgren 

 (followed by Berthoumieu) confused it, because the latter has segments 

 two and three only, red ; no flavous callosities near the radix, and the legs 

 are of a different colour. 



This species much resembles /. captorius, Thoms., but it is rendered 

 distinct by the larger size of the ? , which has thicker antennae, black 

 post-petiole, and less closely punctured hind coxae ; the c? by the broader 

 head, which is slightly narrowed behind the eyes, and the pubescence of 

 the meso- and meta-sterna is longer. It differs from /. raptonus, to which 

 it also is closely allied, in the paler villosity and coarser puncturation of the 

 body, which is especially apparent beneath the posterior coxae, these in 

 /. raploriiis are finely and very closely punctured, in /. insidiosus strongly 

 and less closely ; the size is always larger, the antennae are less attenuate 

 apically ; the scutellum is a little less elevated and flatter vertically. The 

 9 also closely resembles /. exiejisorhis in its coloration and flat scutellum, 

 but the antennae are stouter and less filiform, while in the latter the areola 

 is always longer than broad. 



The variety affectator has the antennae somewhat shorter, the gastrocacli 

 broader, and the post-petiole apically red. 



Bridgman took a female of this species at Brundall, in Norfolk, in 

 August, 1878. It has probably been overlooked, since it appears to be 

 common on the Continent, where the female hibernates among moss. 



43. subcylindricus, Grav. 



Ichneumon siihcyUndriciis, Gr. I. E. i. 321 et Ste. III. M. vii. 169, excl. i ; Wesm. 

 M6m. couron. Ac. Belg. 1S59, p. 37 ; Berth. Ann. Soc. Fr. 1894, p. 614, ? . 



$ . Head broader than thorax, not narrowed behind eyes, black ; cly- 

 peus with a small median fossa ; centre and sides of face protuberant, 

 glabrous, very shining. Antennae somewhat slender, strongly attenuate, 

 setaceous, white-banded ; second joint distinctly longer than broad. 

 Thorax sub-cylindrical, black, callosity beneath radix white ; areola very 

 slightly longer than broad, sub-rectangular. Scutellum white. Abdomen 

 elongate, parallel-sided, sub-linear ; segments two to five somewhat longer 

 than broad, sub-equal ; seventh laterally compressed ; segments two and 

 three entirely red, six and seven with large, slightly longer than broad, 

 white dorsal marks ; post-petiole aciculate ; gastrocaeli as broad as the 

 intervening space ; terebra somewhat exserted. Legs stout, black ; femora, 

 tibiae and tarsi red ; hind tibiae and tarsi apically nigrescent ; hind coxae 

 not scopuliferous. Wings a little clouded ; stigma red, tegulae rufescent. 

 Length, 14 mm. $ unknown. 



The fades of this species are similar to those of Spilichneumon occisorius, 

 but the head is posteriorly broader and thicker, the median facial pro- 

 tuberance larger and shorter, and the petiole is broader. 



In its facial prominences and incrassate legs it somewhat approaches 

 Alotiiyia debellator. 



o 



