BRITISH ICHNEUMONS. 7I 



coxae and trochanters black ; hind ones black, with apex of trochanters, 

 base of femora, tibiae and tarsi reddish. Length, 5-7 mm. 



The formation of the hind coxae at once distinguishes the ? , which is 

 in other respects like that of C. aii/iulator, excepting in the colour of the 

 tibiae ; the S is also like that of C. annu/a/or, but may be known by the 

 colour of the legs, the longer cheeks, larger thyridii, and the entirely black 

 occipital orbits and hind femora. The S differs from that of C. fabricator 

 in the immaculate external orbits, the darker stigma, black posterior femora 

 and obsolete gastrocaeli. 



This species, which is one of the smallest of Wesmael's genus Ichiiejoiioji, 

 was introduced as British by Bridgman on the strength of three females 

 bred by Mr. W. H. B. Fletcher, from Paedisca solafidriana, at Rannoch. 

 These specimens, curiously enough, differed from the continental ones in 

 having the hind femora dark red instead of blackish, though in one they 

 were centrally fuscous ; the abdomen, too, was rather paler than those 

 described by Wesmael and Holmgren. It is only found on the Continent 

 in Holstein, Russia and Scandinavia, extending to Lapland. 



EUPALAMUS, JVesmaei. 

 Wesm. Nouv. M^m. Ac. Triix. 1844, p. 13 ; Thorns. Ann. Soc. Fr. 1S86, p. 11. 



This so closely resembles the type genus that Holmgren and Marshall 

 forebore to recognize its individuality, but Thomson has given to it the 

 following characters, of which a careful study is necessary : — • 



The cheeks in $ short, sub-buccate, with a broad impressed sulcus, in 

 S very short, the genal costa nearly continuous, very slightly inflexed ; 

 mandibles stout, sub-attenuate towards apex, lower tooth the shorter ; 

 clypeus apically truncate ; labrum nearly semi-circular, face short, epistoma 

 separated but not cornute below the antennae ; antenna! scrobes large, 

 polished, confluent ; vertex of head not broad. Flagellum $ strongly 

 dilated in the centre, post-annellus excised below the middle, obviously 

 shorter than the scape ; S with joints seven to fifteen with elevated 

 carinae. Metathoracic spiracles long and linear ; areola longer than 

 broad ; coxal area distinct. Scutellum not transverse. Petiole gently 

 and eciually curved throughout, not higher than dorsally broad before the 

 spiracles , post-petiole not aciculate, but smoothish or a little roughened, 

 central area twice broader than the lateral ; segment two with gastrocaeli 

 small, sub-rugose; thyridii not large, placed far from the base; terebra 

 slightly exserted. Posterior tibiae and femora stout. The thorax and 

 abdomen are dorsally somewhat deplanate. 



Thomson considered it better distinguished by the form of the head, 

 antennae and petiole, than by the structure of the anterior tarsi upon 

 which Wesmael mainly based it ; I am of opinion, however, that if the 

 costa which bounds the base of the second segment prove constant it is a 

 more lucid feature. 



On the Continent there are at least three known species of this genus, 

 Wesmael's variety having been more recently recognised as distinct. 

 Brischke and Thomson considered E. Treiitepohlti a good species on 

 account of its elongate areola, but Berthoumicu has sunk it to a variety of 

 oscillator ; if such be the case, it should occur with the type form in Britain. 



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