28 BRITISH ICHNEUMONS. 



Fr. 1894, p. 539, <J 9 . Coelichtieumoji hiicocerus. Thorns. O. E. xviii. 1904, i 9 . 

 (?) /. binotattis, Ste. 111. M. vii. 147, cJ ; (f. Mori. E. M.M. 1902, p. 120. 



Shining, punctate, black. Head not buccate, narrowed behind the 

 eyes ; cheeks and temples moderately inflated ; frontal and a part of the 

 vertical orbits white, $ also with palpi, mandibles, external orbits in part, 

 sides of clypeus and of face, white. Antennae slightly compresso-dilated 

 towards the apex and attenuate ; a mark beneath the scape in both sexes, 

 and the central band in $ , white. Thorax stout, notauli distinct, lines at 

 the radix, the $ pronotum, and the whole ? and a large part of c? scutellum, 

 white ; metathorax rugosely punctate, the upper areae complete ; areola 

 sub-hexagonal, posteriorly emarginate. Abdomen lanceolate, black, some- 

 what coerulescent towards apex in $\ segments three to five distinctly 

 depressed basally ; post-petiole aciculate-rugose ; gastrocaeli rather deep, 

 the intervening space rugosely striate. Legs, including all the co.xae 

 except rarely the front ones in $, black; anterior femora and tibiae 

 internally pale ; scopulae large. Wings slightly clouded ; stigma fuscous ; 

 areolet somewhat narrowed above. Length, 15-18 mm. 



It differs from C. sinister, which Gravenhorst confused with it, in the 

 narrow vertex of the head, the metathorax shining basally, and the darker 

 stigma. The $ has a white line before as well as beneath the radix, and 

 the tufts on the posterior coxae are large ; the black flagellum and less 

 prominently elevated carinae on joints seven to eighteen of the antennae 

 will distinguish the $. 



Not common ; found near London and in the north of England in 

 July (Stephens). Taken at Bickleigh, South Devon, September 2nd 

 (Bignell) ; and recorded from Essex. Bred on the Continent, where it is 

 widely distributed and much commoner than the two preceding, from 

 Acronycta megacephaia, and the female may be found beneath moss during 

 the winter. 



8. comitator, Linji} 



Ichneumon comitator, Linn. F. S. 402, ? ; Gr. I. E. i. 108, excl. var. stigmate rufo ; 

 Ste. III. M. vii. 127 ; Zett. I. L. 359, excl. i ; Ratz. Ichn. d. Forst. i. 304 ; ii. 133 ; 

 iii. 164 ; Wesm. Nouv. M6m. Ac. Brux, 1844, p. 30; Holmgr. Ichn. Suec. i. 30, J ? ; 

 Ent. Tidskr. 1880, p. 24, i ; Fonsc. Ann. Soc. Fr. 1S47, p. 52 ; Berth, lib. cit. 1894, 

 p. 542, c? ? . /. auspex. Mull. Prodr. 9 . Var. /. fasciattis, C^r. I. E. i. 119, <J ; (?) Ste. 

 111. M. vii. 129. Var. /. biannulatus, Gr. I. E. i. 230, i, ; Ste. 111. M. vii. 152. Var. 

 /. nothus, Holmgr. Ent. Tidskr. 1880, p. 26; Berth. Ann. Soc. Fr. 1894, p. 549,(5. 

 Var. /. speciilaris, Tisch. Stett. Zeit. 1873, ? ! C/- Kreich. Ent. Nachr. 1894. Coelich- 

 neiimon comitator, Thorns. O. E. xviii. 1906, i 9. 



Shining, punctate, black. Head black, clypeus glabrous and truncate ; 

 cheeks and temples strongly inflated ; mouth parts reddish ; frontal and a 

 point at vertical orbits usually pale flavous, c^ also with palpi, mandibular 

 mark, sides of clypeus and of face, white. Antennae conspicuosly dilato- 

 compressed and attenuate, the fifth joint quadrate ; white-banded in ? , 



1 The Rev. William Kirby, m.a., f.r.s., &c., described (Monographia Apum Angliae, ii. 253) 

 an Ichneumon under the name femorator, which was taken out of the foramina of Apis maxillosa 

 (Chelostoma Jlorisonine), and which may easily be confounded with /. comitator. He says it is entirely 

 black with piceous hind femora and white central flagellar band, differing from /. comitator in the 

 antennae being hardly longer than the thorax, the femora piceous, shorter and more incrassate, the 

 wing-nervures nigrescent or ferrugineous and in its thrice smaller size. His types, however, are 

 not in his collection in the British Museum, and it is now quite impossible to guess from what 

 insect his description was drawn, perhaps even from one of the Tryphoninae, as the pabulum would 

 suggest; it is certainly referable to neither of Stephens' species of that name. 



