42 BRITISH ICHNEUMONS. 



This genus appears to form a more or less natural link between Melanich- 

 fieumon and Cratic/ifieu/iio>i, yet the conformation of tlie thorax reverts 

 somewhat to that of the Joppides. Some of the species, e.g., S. apricus, 

 &c., resemble those of Aniblyteles, and Holmgren points out that the male 

 of S. ciilpator is likely to be confounded with that of Cleniclnieumon 

 sputator, Fab. 



Table of Species. 



(12). I. Post-petiole and base of second segment centrally striolate. 

 (5). 2, Size large, 15-21 mm. ; scutellum 

 entirely white or black. 



(4). 3. Scutellum black i. CULPATOR, 5^//r. 



(3). 4. Scutellum white 2. PISTORIUS, Grav. 



(2). 5. Size normal, 1 5 mm. or less ; scutellum 



with sides narrowly white. 



(11). 6. Anterior femora with no white at apex. 



(10). 7. Sides of scutellum only white ; abdomen 



mostly black ; length, at least 12 mm. 



(9). 8. Head narrower behind eyes ; temples 



less prominent 3. TRILINEATUS, GdwL 



(8). 9. Head broader behind eyes ; temples 



more prominent 4. SCUTELLATOR, Grav. 



ij). 10. Basal carinae and sides of scutellum 

 white ; abdomen rufescent ; length, 



about 10 mm 5. RUFINUS, Grav. 



(6). II. Anterior femora always with white dot 



at apex 6. MULTICINCTUS, Grav. 



( I ). 12. Post-petiole and base of second segment 

 not striolate. 

 (14). 13. Antennae of S pale-banded ; anus of ? 



pale-marked 7. OCHROPIS, Gtnel. 



(13). 14. Antennae of $ not pale-banded ; anus 



of 5 not pale-marked. 

 (18). 15. Mesonotum dull. 



(17). 16. Scutellum apically white Z. FICTVS, Grav. 



(16). 17. Scutellum apically rosy in $, flavous 



in (^ 9. CASTANEU.S, 6'rrt?y. 



(15). 18. Mesonotum shining. 



(20). 19. Scutellum apically tlavous 10. defraudator, G^n;:?/. 



(19). 20. Scutellum entirely black 11, apricus, G^?-«7/. 



I. culpator, Schr. 



Ichneumon cnlpator, Schr. F. B. II. ii. n. 2077 ; Gr. I. E. i. 548 ; Ste. 111. INI vii. 

 196, ?; Wesm. Nouv. Mem. Ac. Brux. 1844, p. 82; Bui. Ac. Brux. 1848, p. 173; 

 Desv. Cat. 26, i ; Holm. Ichn. Suec. i. 44; Berth. Ann. Soc. Fr. 1894, p. 566, <i ?. 

 Stemchne2imon cu/pafor. Thorns. O. E. xviii. 1965, 6 ?• Var. 1. fmnigator^ Gr. I. E. i. 

 537, excl. ? . 



A large, dull, black species. Head entirely black, dull, coarsely punc- 

 tate ; cheeks narrow ; clypeus apically truncate, its angles broadly rounded. 

 Antennae black, slender, setaceous ; central band in both sexes usually 

 white. Thorax entirely black, dull, coarsely punctate ; metathorax sub- 

 bidentate ; areola somewhat transversely quadrate, its base rounded and 

 apex almost truncate. Scutehum strongly convex, entirely black. Abdo- 

 men elongate, black, with second, and usually third, segment castaneous, 



