21 
with pale yellowish white ; the tuft or tail black, the 
middle part yellowish orange-red. 
One specimen was taken formerly by Mr. Francillon, 
and one recently by Mr. Brewer ; the latter and another 
was said to have been take,.* at Haslor by Mr. Barron. 
The date of the appearance of the perfect insect is 
at the end of June. 
SESIA ICHNEUMONIFORMIS. 
Plate VI. Figure L 
This insect measures from eight to ten lines in ex¬ 
panse. Male : front wings transparent, brownish black 
on the upper edge, the outer and lower edges yellowish 
orange, the central bar orange and brownish black. The 
hind wings have the fringe brownish black. The body 
is black with six yellowish rings, the head and thorax 
brownish black, the tail-tuft, which is narrow, black 
with two narrow yellow lines. The female has seven 
yellowish rings. 
Localities for this species are Scarborough, Char- 
mouth, on the east clifflow down near the sea, Kingston 
near Canterbury, Portland, Plymouth, Hastings, Ten- 
terden, Charlton, Creak, Epping, Freshwater Gate near 
Bristol, and the Isle of Wight. 
The situations where it is found are among low vege¬ 
tation, hovering on flowers, and is especially fond of 
the scabious (S'cabiosa succisa ). 
Dates for the appearance of the perfect insect are 
July and August. 
The name of this species is derived from the re¬ 
semblance of the shape of its body to that of the 
Ichneumon bees. 
