FAUNA AND FLOIJA OF NORFOLK: LEPIDOPTERA. 
533 
XX. 
FAUNA AND FLORA OF NORFOLK. 
Additions to Part V., Lkpidoptera (Fourth List).* 
By Charles G. Barrett, F.E.S. 
Read 28th March, 1809. 
Although not now resident in the county, I am enabled by the 
kindness of friends to furnish a further supplement to my List ol 
the Lepidoptera of Norfolk, published in 1874, and added to in 
1884 and 1889. Taking into consideration that upwards of 14<i0 
species have already been recorded in the county, very great credit 
is due to the industry and acumen of our local Lepidopterists in 
that there is still a respectable addition to be made to probably the 
largest result shown by any county in the United Kingdom. 
Diurni. 
Syrichthus alveus. Hub. Several specimens of this species — 
well known on the Continent — were captured in 
a damp valley, bordered by a wood, near Cawston, 
by the Rev. T. H. Marsh, about twenty-five years 
ago. These were, at the time, mistaken for the 
common 5. alveolus ( vialvee ), and were placed 
under that name in Mr. Marsh’s collection ; the 
latter species being unknown to him — indeed it is 
far from common in Norfolk. Strangely enough 
<S. alveus has never since been seen in that 
locality, though frequently looked for ; and since 
it is scarcely known to have occurred in any other 
* The previous lists will be found in the Society’s ‘ Transactions.' vol. i. 
1873 — 4, Supplement ; vol. iii. p. 6S3; vol. iv. p. 691. 
VOL. VI. 
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