FAUNA AND FLORA OF NORFOLK: ICHNEUMONS. 
GUI) 
XII. 
FAUNA AND FLORA OF NORFOLK. 
Part XIII. Ichneumons. 
By J. B. Bridgman, F.L.S., Vice-Prevalent. 
Read diet October , 180-1. 
1 present this list of thu Ichneumons of Norfolk with a great 
deal of diilidence, in fact lmd it not been for thu solicitation of our 
President I much question if 1 should have ventured to do so, 
feeling how imperfect, comparatively speaking, it is, being thu 
iirst contribution to this section of Ilymenoptera published for 
the County of Norfolk. Parasitic Ilymenoptera have been much 
neglected in this country, especially the Ichneumons, owing, no 
doubt, in a great measure to the fact of there being no handbook 
on the subject in the English language, the only native works 
wo have are parts of the ‘ British Entomology,’ by J. Curtis, and 
‘Illustrations of British Entomology,’ by .1. F. Stephens, the 
former giving some beautiful illustrations of Ichneumons, with 
sometimes short descriptions ; the latter a mass of abridged 
translations from Gravenhorst, but neither of them, especially' the 
latter, of much use to the student. 
Previous to 1821) the literature relating to Ichneumons was in 
the same unsatisfactory condition, or perhaps even worse, than 
that of most other branches of Natural History at the end of the 
last century and beginning of the present, being little if any better 
than a mass of Linnean descriptions; but in 1820 Gravenhorst 
published his ‘Ichneumonologia Europiea,’ a truly marvellous work, 
in three thick octavo volumes ; this work, although over sixty years 
old, is still the standard, and his general arrangement remains the 
same, nor has another complete work on the subject been since 
undertaken, nothing but a mass of scattered monographs. 
Wesmael in 18 i f published his 1 Tentamen Dispositionis Alethodieae 
