BRITISH ICHNEUMONS. I27 



September. Mr. And. Adie Dalglish has kindly given me a ? of this 

 species taken on 24th May, 1900, at Colintraive, near Edinburgh. 



16. bucculentus, JVesin. 



Ichiieiiiiion litclaton'ns, var. 9b, Gr. I. E. i. 418, S. Var. /. fiilvicornis, Gr. I. E. 

 i. 422 ; Ste. 111. M. vii. 182, i. I. biuculentiis, Wesm. Nouv. Mem. Ac. Brux. 1844, 

 p. 61, (J 9 ; Bui. Ac. Brux. 1848, p. 162, var. i ; Holingr. Ichn Suec. i. 60 ; Ent. 

 Tidskr. 1880, p. 30; Thorns. O. E. xii. 1223 et xviii. 1917 ; Ann. Soc. Fr. 1S86, p. 19 ; 

 Berth., lib. cit., 1894, p. 645, J 9 . /. glauciis, Tiscli. Stett. Zeit. 1876, ? . 



This and the following species, which are very closely allied, may be 

 known by the large pale mark on the fifth segment. Head black, broader 

 than thorax ; inflated behind eyes ; face quadrangular, cheeks strongly 

 buccate ; mandibles obliquely truncate ; eyes prominent ; frontal orbits 

 red in ? ; facial orbits and sometimes clypeus largely flavous in $. An- 

 tennae filiform, white-banded, at least above, in $ ; flagellum usually 

 entirely black, scape flavous beneath in $. Thorax black; of $ covered 

 with piceous pilosity and with the callosities before and beneath the radix 

 flavous ; areola apically emarginate, equilateral, basally somewhat rounded, 

 sub-quadrate, longer in 5 ; costulae often wanting. Scutellum flavidous- 

 white; shining, with large and shallow punctures. Abdomen of 5 elongate- 

 ovate, of $ sub-cylindrical ; black, $ with segments two, three, and rarely 

 the fourth basally at the sides, flavous or fulvous, apical ones immaculate, 

 or very rarely marked with yellow ; $ with segments two, three, and often 

 base of four red, five to seven always with dorsal white marks, of which 

 the first is broader than, or very rarely only as broad as, the following ; 

 post-petiole aciculate, carinae not strong ; gastrocaeli normal, deeper in 

 c?, intervening space evenly punctate. Legs black ; tarsi and tibiae of $ 

 fulvous, of 9 red; hind or posterior ones apically black; hind tarsal joints 

 apically fuscous. Wings hardly clouded ; areolet pentagonal ; tegulae 

 ferrugineous, stigma fulvescent. Length, 10-15 mm. 



This species agrees with /. siispiciosiis in the following points, which 

 differ from most other species : the ? has a large pale dorsal mark on the 

 fifth segment, generally larger than that on the sixth ; the posterior coxae, 

 though closely punctate, are not tufted ; the antennae slender ; scutellum 

 white, not flavous ; cheeks buccate ; areola oblong-quadrate : the $, has 

 the antennal flagellum entirely black ; the face and clypeus for the most 

 part flavous ; the posterior femora are black, their base, externally hardly, 

 internally with a small red mark ; hind tarsi entirely flavous or the joints 

 apically fusco-ferrugineous above. From /. suspiciosus it is distinguished 

 by the genal costa in both sexes being strongly inflexed, the oral costa in 

 $ laminately elevated, the lower margin of the stout mandibles is sinuate, 

 their apex broad, with the upper obtuse tooth the larger ; ? with segments 

 two and three dullish and densely punctate ; the $ has the oral costa 

 hardly elevated, the clypeus apically truncate, submarginate ; scutellum 

 stramineous-white ; segments two and three flavous, and the colour of the 

 posterior legs is also distinctive. 



The 9 hibernates beneath moss, and is found in woods, gardens and 

 meadows. I have seen no British examples of this species, and do not 

 expect it is frequent with us, though common on the Continent. Doubt- 

 less mixed with the following. Stephens records the c^ var. fiili'icornis, 



