58 
REVIEWS, 
but such a conclusion seems scarcely borne out by the data, as we have 
collected them in the annexed table :—■> 
COMPARATIVE NUMBER OF RE- 
CORDED SPECIES OF 
SCANDINAVIAN. 
BRITISH. 
Zettei 
n. spp. 
•stedt. 
total. 
Curtis. 
Guide. 
Walker. 
Ins. Br. 
PULICID2E 
— 
— 
17 
Mycetophilid.® 
135 
235 
138 
Cecidomyzid^: 
21 
33 
33 
Bibionid.e 
10 
37 
34 
SlMULIDiE 
5 
12 
13 
CHIRONOMIDiE 
107 
222 
154 
CULICIDJE 
7 
20 
27 
Phlebotomid.® 
1 
10 
9 
Heteroclit.e 
1 
5 
10 
Tipulid.® 
62 
198 
161 
Rhyphpeme 
0 
3 
4 
Stratiomid^e 
9 
42 
50 
49 
Xylophaghxe 
0 
4 
2 
3 
Tabandxe 
16 
38 
29 
17 
Acroceridje 
2 
6 
4 
3 
Asilid^ 
8 
37 
33 
25 
IiEPTIDiE 
3 
19 
20 
15 
BoMBYLID-E 
4 
35 
27 
17 
ScEN OPINIDiE 
1 
3 
(8) 
2 
Emplibe 
146 
267 
183 
155 
Dolichopide 
104 
204 
132 
138 
Lonchopteride 
3 
8 
8 
5 
Platypezlde 
8 
24 
19 
17 
PlPUNCULIDE 
11 
25 
14 
12 
SYRPHIDE 
106 
284 
210 
153 
Conopide 
0 
7 
8 
9 
Muscide SCalypteri ... 
473 
859 
369 
(760*) 
MUSCIDE ^ Aca l ypteri _ 
338 
775 
584 
CEstride 
1 
11 
8 
7 
Phoride 
16 
38 
32 
18 
Hippoboscide 
1- 
7 
10 
5 
Nycteribide 
0 
0 
2 
2 
* Computed. 
1599 
3468 
2335 
We may here observe that since the completion of Zetterstedt’s work in 
1852, more species appear to have been added to the Swedish Diptera 
than have been to the British since 1851, when the first volume of the 
“Insecta Britannica” was published, if we may judge from a comparison of 
one or two of the principal families included in each. Thus, the Dolicho- 
pidce have been increased by two with us, and as many for Sweden; 
the Empidce by three for Sweden, and none here. Curtis, in his Guide, 
