840 FAUNA AND FLORA OF NORFOLK : HEMIPTERA. 
XIX. 
FAUNA AND FLORA OF NORFOLK. 
Additions to Part VIII., Hemiptera (Sixth List).* 
By James Edwards, F.E.S. 
Read 30 th March, 1909. 
The seven species of Hemiptera enumerated below are the 
only additional ones which have come to my knowledge as 
occurring in this county subsequent to my list of 1904 (vol. vii. 
p. 746). 
Bythoscopina. 
Idiocerus cognatus, Fieb. Wretham Heath, 30th August, 
1907, on a young tree of Populus alba, which 
had evidently been planted. Mr. Thouless has 
also met with it on the same food-plant in 
gardens on College Road, Norwich. 
,, elegans, Flor. Keswick Common, 25th August, 
1907, one female only, on a narrow-leaved 
Salix. At Colesborne, Glos., this species is 
not uncommon on sallows. 
Acocephalaria. 
Acocephai.us .estuarinus. Edvv. I had already (Hem. Horn. 
Brit. Ish, p. 120) referred to this insect in deal- 
ing with A. nervosus, but I took advantage of 
an excursion to the salt-marshes east of Wells 
on the 28th August, 1907, to study it once 
more in the field and collect ample material. 
I became convinced that, although one may 
reasonably suppose the characters which dis- 
tinguish it from A. nervosus to have been 
* The previous lists have appeared in these ‘ Transactions,’ as 
follows: — Vol. iii. , p. 700; vol. iv., p. 702; vol. v., p. 650: vol. vi., 
p. 524; and vol. vii., p. 746. 
