BRITISH ICHNEUMONS. 85 



(24). 25. Metathoracic spiracles sub-circular 13. EUPITHECIAE, ^m<r//. 



(17). 26. Sternauli short or wanting ; anus often 



white. 

 (28). 27. Hind tibiae black with broad basal 



white band 14. ALBICINCTUS, Grav. 



(27). 28. Hind tibiae red or black, not broadly 



white-banded. 

 (30). 29. Areola transverse linear ; mesosternum 



thrice broader than long 15. PLAGIARIUS, Wesm. 



(29). 30. Areola not transverse linear ; meso- 

 sternum less than thrice broader than 



long. 

 (34). 31. Hind coxae dififusely punctate ; $ scu- 



tellum usually, and ^ anus, black. 

 {'h'xi- 32- Areola longer than broad ; gastrocaeli 



sub-obsolete ; $ coxae white 16. derogator, Wcsm. 



(32). 33- Areola not longer than broad ; gastro- 

 caeli small ; $ coxae black 17. bilunulatus, Grav. 



(31). 34. Hind coxae closely punctate ; scutellum 



and anus usually white. 

 (38). 35- Central segments strongly punctate. 

 (37). 36. Frons rugosely punctate ; gastrocaeli 



normal 18. vestigator, Wesm. 



(36). yj. Frons more finely punctate ; gastrocaeli 



longitudinal 19. LEPIDUS, Grav. 



(35)- 38- Central segments finely punctate. 



(40). 39. Metathorax finely bidentate ; ? anus 



compressed 20. angustatus, Wesm. 



(39). 40. Metathorax not bidentate ; $ anus not 



compressed. 

 (42). 41. Anus with two segments white-marked 21. CHIONOMUS, Wesm. 

 (41). 42. Anus with three segments white-marked 22. callicerus, Gn?7'. 



I. anator, Fab. 



Ichneumon anator. Fab. E. S. ii. 169 ; Gr. I. E. i. 250 ; Ste. 111. M. vii. 156 ; Zett. 

 I. L. 361 ; Wesm. Nouv. M^m. Ac. Brux. 1S44, P- 220; Bui. Ac. Brux. 1848, p. 176, 

 et 1849, p. 39 ; Holmgr. Ichn. Suec. i. 181 ; Thorns. Ann. Soc. Fr. 1888, p. 108 ; Berth. 

 lib. cit. 1895, P- 235, J ?• Cryptus anator. Fab. Piez. 87, J. Baric/uieuiiion anator. 

 Thorns. O. F. xviii. i960, i 9. Var. /. microcerus, Gr. I. E. i. 249 ; Ste. 111. M. vii, 

 156, 9. 



A small, black and white species with red legs. Head black, some- 

 what broad behind the eyes ; cheeks short ; palpi and the stout mandibles 

 for the most part fulvous ; frontal and, in $ , facial orbits usually distinctly 

 white ; epistoma discreted. Antennae reaching about to or a little beyond 

 the metathoracic spiracles ; inserted low on frons, blackish, usually with 

 the basal joints ferrugineous and, in ? , the central ones clearly white. 

 Thorax black, with the pronotum above and marks near the tegulae 

 whitish ; notauli shallow, sternauli wanting ; pleurae nitidulous, finely 

 punctate ; metathorax with the spiracles elongate oval, not linear ; sub- 

 rugosely punctate, with complete upper areae, of which the areola is 

 transverse semi-lunar. Scutellum flat and shining, with the apical half 

 flavous. Abdomen oval, longer in $, black, grey-haired and shining 

 incisures of the first three segments castaneous ; apical margin of fifth 

 especially in $ , and most or whole of sixth and seventh, albidous ; post 

 petiole punctate, central twice broader than lateral areae, carinae distinct 

 second segment not longer than broad, punctulate ; gastrocaeli and 



