BRITISH ICHNEUMONS. 197 



second and third segments are, moreover, said to be flavous with darker 

 incisures and the sixth and seventh flavous-marked. 



Kev. T. A. Marshall {/.c.) describes a deformed $ with one eye almost 

 obliterated, and adds that the S^ which had not before been noticed, 

 differs from the ? slightly in having the antennae black with the two basal 

 joints flavous beneath and in the absence of the dark suffused stain at the 

 base of the segments ; its length is seven lines or one-and-a-half lines 

 longer than that of the 5 . 



This species would appear to be of very rare occurrence both here and 

 abroad ; Stephens says it was found near London, in August, and J. Scott 

 has bred it from Acheroniia Atropos. On the Continent it is only known 

 from Piedmont and Provence ; Gravenhorst's female was described from 

 the former locality. 



15. negatorius, Fab. 



Ichtietimon negatorhis. Fab. E. S. ii. 141 ; Piez. 60, i . Amblytehs negatorius, Wesm. 

 Nouv. M(5m. Ac. Brux. 1S44, p. 133 ; Bui. Ac. Brux. 1S48, p. 303 ; Holmgr. Sv. Ak. 

 Handl. 1854, p. 41 ; Ichn. .Suec. ii. 251 ; Thorns. Ann. Soc. Fr. 1888, p. 117 ; Berth. 

 lib. cit. 1895, p. 640; Thonis. O. E. xix. 2097, (5 9 . /. ornatoi-iiis, Gr. I. E i. 311 ; 

 Ste. III. M. vii. 167 ; Zett. I. L. 363, S. I. sartorius, Gr. I. E. i. 308; Ste. 111. M. 

 vii. ]66, ?. 



A Stout species. Head black, not narrowed behind the eyes ; cheeks 

 and temples dilated ; $ sometimes with the internal orbits and the slender, 

 bidentate mandibles pale. Antennae setaceous, black ; of $ nearly always 

 white-banded, with the fourth flagellar joint quadrate ; of $ somewhat 

 rufescent beneath. Thorax black, with white lines at radix ; areola trans- 

 verse, rounded in front and sub-truncate apically \ apophyses wanting ; 

 costulae entire. Scutellum white. Abdomen black; second and third 

 segments red with incisures more or less black ; fifth and sometimes the 

 fourth margined, sixth and seventh dorsally marked, with white ; post- 

 petiole aciculate ; gastrocaeli normal; ventral segments two and three only 

 plicate, ultimate of $ nearly hiding terebra ; genital valvulae generally 

 pale-marked. Legs somewhat stout, black ; front tibiae and tarsi of 9 

 laterally pale towards their apices ; $ with all the tibiae and tarsi, except 

 the hind ones in part, flavous or fulvescent. \\'ings sub-hyaline ; stigma 

 fulvous. Length, 12-17 ^''''i^''- 



The $ variety niibihis, Berth., has the antennae, scutellum and four 

 apical segments entirely black ; the last, however, sometimes bearing a 

 white dot. 



This species occurs throughout Europe, and is found from July to 

 September, in woods, gardens and fields, upon shrubs and umbelliferous 

 flowers ; its only known host is Noctita hrunnca ; the female is said to 

 hibernate. In Britain it is probably common and widely distributed ; 

 Fabricius says, " Habitat in Anglia, jNIus. Dom. Banks" (1804). In spring, 

 near Hertford, in Norfolk, Essex and Salop ; in June and July, about 

 London ; Bickleigh, in Devon, at the end of July ; South Leverton, in 

 Notts. ; Plymouth and Netley. I have taken the female upon flowers of 

 Angelica sy/ves/ris, at Claydon bridge, in Suffolk, in the middle of Sep- 

 tember ; there is also an example from " Suffolk," in the British Museum. 

 Sladen has found it at Kingsdown and Dover, in August, and Davies tells 

 me he has several times taken the male hovering along hedges, at St. 



