BIONOMICAI, INVESTIGATION OF THE NORFOLK BROADS. 673 
ON VTA Zyooptkkiiuk. 
1903. 
a 
c 
— 
a 
CO 
2 Catlield Fen. 
3 Ranworth. 
2 
2 
£ 
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it 
u 
5 
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2 
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6 
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it 
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5 
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£ 
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£ 
GC 
lfl Acle. 
£0 Thurne. 
21 Rollesby. 
E 
cd 
— 
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a g 
u = 
5 3 
o I 
P-< »— 
M CO 
*1 C4 
X 
<N 
opteuyx splendens 
(Harr.) 
t 
+ 
4 
4 
tes sponsa (ITansemann.) 
t 
t 
t 
+ 
t 
t 
t 
■ tiirom.ua naias (Ilansin.) 
t 
t 
t 
t 
t 
+ 
t 
; 'BHOsoma nymphula 
(Sulz.) 
t 
t 
t 
+ 
+ 
+ 
+ 
„ tenellum(Vill). 
t 
inura olegans (Lind). 
t 
t 
t 
t 
t 
t 
t 
t 
+ 
t 
+ 
+ 
t 
t 
t 
t 
t- 
4 
t t 
t 
: t 
+ 
; :ion pulchellum, Lind. 
t 
+ 
t 
t 
t 
+ 
+ 
+ 
t 
t 
t 
+ 
+ 
„ puella (L.) - 
# 
t 
t 
• 
t 
+ 
„ armatum (Meyer.) 
t 
| .llagma cyathigerum 
(Charp.) 
* 
j> 
t 
t 
t 
t 
t 
t 
4 
4 - 
+ t 
t 
t 
* 
* A single imago in each subdistrict. % Subdistricts uot examined. 
ODONATA Anisopteridae. 
1903. 
May — October. 
I 
6 
a 
■s 
» p. 
•< CO 
u 
9 
o 
O 
Sympetrum atriolatum (Charp.) - 
+ 
+ + 
t 
Libellula quadrimaculata, L. 
t 
t 
+ 
t 
„ fulva, Mull. ... 
? 
t 
Orthetrum cancellatum (L.) 
t 
t 
t 1 
Brachytron pratense (Mull.) 
t 
t 
t 
Aeschna juncea (L.) ... 
? 
+ t 
„ grandis (L.) - 
+ 
+ + 
„ isosceles (Mull.) 
t 
t 
ODONATA Zygoptf.ridae. 
1903. 
May — September. 
CJ 
a 
June. 
« 
if* % 
•5 < 
43 
r 
X 
Calopteryx splendens (Harr.) 
t 
Lestes sponsa (Hansem.) 
t + 
t 
Krythromma naias (Hansem.) 
t 
t t 
Pyrrhosoma nymphula (Sulz.) 
# 
* 
„ tenellum (Vill.) 
+ 
Ischnfra elegans (Lind.) 
+ 
t 
+ + 
t 
Agrion pulchellum, Lind. 
t 
t 
+ t 
„ puella (L.) ... 
t 
+ 
„ armatum (Meyer.) 
t 
Enallagma cyathigerum (Charp.) - 
t 
t t 
t 
