|   | 
site | 
site # (info) | 
collection date | 
kind | 
depth | 
substrate | 
salin | 
comments | 
reference | 
| A | 
Bergumermeer Lake,  Netherlands (Holland) | 
1316
  map | Jun 7-12, 1971 | 
  | 
littoral | 
Vegetation | 
freshwater | 
West shore, stones (bricks).  Vegetation, Phragmites, little detritus.  31-100 individuals per hour. | 
Young JO (1972): 61 | 
| B | 
Bergumermeer Lake,  Netherlands (Holland) | 
1316
  map | Jun 7-12, 1971 | 
  | 
littoral | 
Stones | 
freshwater | 
West shore, stones (bricks).  Vegetation, Phragmites, little detritus.  101-300 individuals per hour. | 
Young JO (1972): 61 | 
| C | 
Brandemeer Lake,  Netherlands (Holland) | 
3324
  map | Jun 7-12, 1971 | 
  | 
littoral | 
Vegetation | 
freshwater | 
West shore.  Vegetation, Phragmites, little detritus.  1-10 individuals per hour. | 
Young JO (1972): 61 | 
| D | 
De Leijen Lake, Netherlands (Holland) | 
1317
  map | Jun 7-12, 1971 | 
  | 
littoral | 
Vegetation | 
freshwater | 
North shore.  Bricks, rough stones.   Vegetation, Phragmites, little detritus.  1-10 individuals per hour. | 
Young JO (1972): 61 | 
| E | 
De Leijen Lake, Netherlands (Holland) | 
1317
  map | Jun 7-12, 1971 | 
  | 
littoral | 
Bricks, rough stones | 
freshwater | 
North shore.  Bricks, rough stones.   Vegetation, Phragmites, little detritus.  101-300 individuals per hour. | 
Young JO (1972): 61 | 
| F | 
Fluessen Lake (De Fluesen, De Fluessen, Fluessenmeer, Fljusen), Netherlands (Holland) | 
1318
  map | Jun 7-12, 1971 | 
  | 
littoral | 
broken bricks | 
freshwater | 
West shore.  Broken bricks.   Vegetation, Phragmites, Typha, little detritus.  31-100 individuals per hour. | 
Young JO (1972): 61 | 
| G | 
Fluessen Lake (De Fluesen, De Fluessen, Fluessenmeer, Fljusen), Netherlands (Holland) | 
1318
  map | Jun 7-12, 1971 | 
  | 
littoral | 
vegetation | 
freshwater | 
West shore.  Broken bricks.   Vegetation, Phragmites, Typha, little detritus.  1-10 individuals per hour. | 
Young JO (1972): 61 | 
| H | 
Koevorde (Koevordermeer) Lake, Netherlands | 
1326
  map | Jun 7-12, 1971 | 
  | 
littoral | 
vegetation | 
freshwater | 
North shore.  Bricks.   Vegetation, Phragmites, little detritus.  1-10 individuals per hour. | 
Young JO (1972): 61 | 
| I | 
Koevorde (Koevordermeer) Lake, Netherlands | 
1326
  map | Jun 7-12, 1971 | 
  | 
littoral | 
bricks | 
freshwater | 
North shore.  Bricks.   Vegetation, Phragmites, little detritus.  11-30 individuals per hour. | 
Young JO (1972): 61 | 
| J | 
Langweerderwielen (Langweerder Wielen) Lake, Netherlands (Holland) | 
3326
  map | Jun 7-12, 1971 | 
  | 
littoral | 
vegetation | 
freshwater | 
South-east shore.  Vegetation, Phragmites, a little Typha, little detritus.  11-30 individuals per hour. | 
Young JO (1972): 61 | 
| K | 
Morra Lake, Netherlands (Holland) | 
1320
  map | Jun 7-12, 1971 | 
  | 
littoral | 
vegetation | 
freshwater | 
East shore.  Bricks.  Vegetation, Phragmites, little detritus.  1-10 individuals per hour. | 
Young JO (1972): 61 | 
| L | 
Morra Lake, Netherlands (Holland) | 
1320
  map | Jun 7-12, 1971 | 
  | 
littoral | 
bricks | 
freshwater | 
East shore.  Bricks.  Vegetation, Phragmites, little detritus.  1-10 individuals per hour. | 
Young JO (1972): 61 | 
| M | 
Oorden Lake (De Oorden), Netherlands (Holland) | 
1321
  map | Jun 7-12, 1971 | 
  | 
littoral | 
vegetation | 
freshwater | 
South-east shore.  Broken concrete.  Vegetation, Phragmites, a little Typha, little detritus.  11-30 individuals per hour. | 
Young JO (1972): 61 | 
| N | 
Oorden Lake (De Oorden), Netherlands (Holland) | 
1321
  map | Jun 7-12, 1971 | 
  | 
littoral | 
broken concrete | 
freshwater | 
South-east shore.  Broken concrete.  Vegetation, Phragmites, a little Typha, little detritus.  31-100 individuals per hour. | 
Young JO (1972): 61 | 
| O | 
Pikmeer Lake, Netherlands (Holland) | 
1322
  map | Jun 7-12, 1971 | 
  | 
littoral | 
vegetation | 
freshwater | 
South shore.  Rounded.  Vegetation, Phragmites, little detritus.  1-10 individuals per hour. | 
Young JO (1972): 61 | 
| P | 
Pikmeer Lake, Netherlands (Holland) | 
1322
  map | Jun 7-12, 1971 | 
  | 
littoral | 
rounded stones | 
freshwater | 
South shore.  Rounded stones.  Vegetation, Phragmites, little detritus.  1-10 individuals per hour. | 
Young JO (1972): 61 | 
| Q | 
Prinsenhof Lake, Netherlands | 
1323
  map | Jun 7-12, 1971 | 
  | 
littoral | 
bricks | 
freshwater | 
South-east shore.  Bricks.  Vegetation, Phragmites, little detritus.  11-30 individuals per hour. | 
Young JO (1972): 61 | 
| R | 
Slotermeer Lake, Netherlands (Holland) | 
1324
  map | Jun 7-12, 1971 | 
  | 
littoral | 
bricks, rough stones | 
freshwater | 
North shore.  Bricks, rough stones.  Vegetation, Phragmites, little detritus.  1-10 individuals per hour. | 
Young JO (1972): 61 | 
| S | 
Sneekermeer Lake, Netherlands (Holland) | 
1325
  map | Jun 7-12, 1971 | 
  | 
littoral | 
vegetation | 
freshwater | 
West shore.  Broken bricks.  Vegetation, Phragmites, little Scirpus, little detritus.  1-10 individuals per hour. | 
Young JO (1972): 61 | 
| T | 
Sneekermeer Lake, Netherlands (Holland) | 
1325
  map | Jun 7-12, 1971 | 
  | 
littoral | 
broken bricks. | 
freshwater | 
West shore.  Broken bricks.  Vegetation, Phragmites, little Scirpus, little detritus.  31-100 individuals per hour. | 
Young JO (1972): 61 | 
| U | 
Tjeukemeer Lake, Netherlands (Holland) | 
3327
  map | Jun 7-12, 1971 | 
  | 
littoral | 
broken bricks | 
freshwater | 
South shore.  Broken bricks.  Vegetation, Phragmites, medium detritus.  31-100 individuals per hour. | 
Young JO (1972): 61 | 
| V | 
Tjeukemeer Lake, Netherlands (Holland) | 
3327
  map | Jun 7-12, 1971 | 
  | 
littoral | 
vegetation | 
freshwater | 
South shore.  Broken bricks.  Vegetation, Phragmites, medium detritus.  11-30 individuals per hour. | 
Young JO (1972): 61 | 
| W | 
Wijde Ee Lake, De Veenhoop, Netherlands (Holland) | 
3328
  map | Jun 7-12, 1971 | 
  | 
littoral | 
vegetation | 
freshwater | 
North shore. Vegetation, Typha, little Scirpus, thick detritus.  11-30 individuals per hour. | 
Young JO (1972): 61 | 
| X | 
Wijde of Peanster Ee, Netherlands (Holland) | 
3329
  map | Jun 7-12, 1971 | 
  | 
littoral | 
vegetation | 
freshwater | 
North shore. Vegetation, Phragmites, little Typha, little detritus.  1-10 individuals per hour. | 
Young JO (1972): 61 | 
| Y | 
People’s Democratic Republic of Algeria (Al-Jaza’ir, L’Etat Algerien, Algérie), Africa | 
3524
  map | 1923 or earlier | 
  | 
  | 
  | 
freshwater | 
  | 
Gauthier H (1923): Gauthier 1928 (citation); from Young 1976 (citation)- p. 427 | 
| Z | 
Herault, France | 
3749
  map | 2004 or earlier | 
  | 
  | 
  | 
freshwater | 
  | 
Vila M, Sancho M, Cardona A, Fernandez J, Romero R (2004): abstract | 
| A1 | 
Wales, United Kingdom | 
6703
  map | 1981 or earlier | 
  | 
  | 
  | 
  | 
fairly widespread, occurring in England, Scotland and Wales. | 
Ball IR, Reynoldson RB (1981): 66 | 
| B1 | 
Scotland (Schottland), United Kingdom | 
2155
  map | 1981 or earlier | 
  | 
  | 
  | 
  | 
fairly widespread, occurring in England, Scotland and Wales. | 
Ball IR, Reynoldson RB (1981): 66 | 
| C1 | 
England, United Kingdom | 
2636
  map | 1981 or earlier | 
  | 
  | 
  | 
  | 
fairly widespread, occurring in England, Scotland and Wales. | 
Ball IR, Reynoldson RB (1981): 66 | 
| D1 | 
Benavente, Spain | 
7511
  map | 2018 or earlier | 
  | 
  | 
  | 
  | 
collector L. Leria, M. Alvarez-Presas, and M. Riutort | 
Leria L, Sluys R, Riutort M (2018): 340 | 
| E1 | 
Seishes, France | 
7512
  map | 2018 or earlier | 
  | 
  | 
  | 
  | 
collector L. Leria, M. Alvarez-Presas, and E. Sola | 
Leria L, Sluys R, Riutort M (2018): 340 | 
| F1 | 
Lierganes, Spain | 
7513
  map | 2018 or earlier | 
  | 
  | 
  | 
  | 
collector L. Leria, M. Vila-Farre, and E. Sola | 
Leria L, Sluys R, Riutort M (2018): 340 | 
| G1 | 
Riba-roja, Spain | 
7514
  map | 2018 or earlier | 
  | 
  | 
  | 
  | 
collector A. Munte | 
Leria L, Sluys R, Riutort M (2018): 340 | 
| H1 | 
Cinca, Spain | 
7515
  map | 2018 or earlier | 
  | 
  | 
  | 
  | 
collector J. Oscoz | 
Leria L, Sluys R, Riutort M (2018): 340 | 
| I1 | 
Fluvia, Spain | 
7516
  map | 2018 or earlier | 
  | 
  | 
  | 
  | 
collector M. Riutort  | 
Leria L, Sluys R, Riutort M (2018): 340 | 
| J1 | 
Fluvia, Spain | 
7517
  map | 2018 or earlier | 
  | 
  | 
  | 
  | 
collector M. Riutort  | 
Leria L, Sluys R, Riutort M (2018): 340 | 
| K1 | 
Montjuïc, Spain | 
7518
  map | 2018 or earlier | 
  | 
  | 
  | 
  | 
  | 
Leria L, Sluys R, Riutort M (2018): 340 |