DER 
Donacia bidens v. cincta, Germ. 
Haltica tabida, Illig. . 
Coccinella 7-punctata, L. 
Coccinella bipunctata, L . 
Coccinella 11-punctata, L. . 
Hippodamia 13-punctata, L. 
NOORDZEE-EILANDEN. 
251 
Tessel, op Potumogeton. 
Tessel. 
Tessel, Terschelling, Ameland. 
Tessel, Terschelling. 
Terschelling, Ameland, Schier- 
monnikoog, Rottum. 
Terschelling. 
HYMENOPTERA. 
Apis mellifica, L. . 
Bombus Agrorum, F.. 
Bombus Hortorum, L. 
Bombus Muscorum, L. 
Bombus Durhamellus, Kirby 
Bombus lapidarius, L. 
Coelioxys conica, L. . 
Dasypoda hirtipes, Latr. 
Panurgus ater, Panz. . : 
Halictus (Hylaeus) albipes, F.. 
Mellinus arvensis, L. . 
Mellinus sabulosus, F. 
Ammophila arenaria, F.. 
Pompilus trivialis, Klug. 
Tiphia femorata, F. 
Myrmica, spec. dub. . 
Lasius flavus, F. 
Lissonota decimator ? Grav . 
Lissonota lineata, Grav. . 
Phygadeuon, spec. dub. . 
Chelonus sulcatus, Jur. . 
Chelonus oculator, F. 
Cynips Quercus folii, L. 
Aphilothrix Gemmae, L. (Cynips 
fecundatrix, Hart.) . 
Nematus albipennis, Klug . 
Tessel, Terschelling. 
Tessel. 
Tessel, Rottum. 
Tessel. 
Terschelling. 
Tessel, Terschelling. 
Rottum. 
Terschelling. 
Rottum. 
Tessel. 
Tessel. 
Tessel, Terschelling. 
Tessel. 
Rottum. 
Schiermonnikoog. 
Rottum. 
Terschelling, Ameland. 
Terschelling, Ameland. 
Ameland. 
Ameland. 
Terschelling. 
Terschelling. 
Tessel. | 
gallen op eiken. 
Tessel. 
Tessel. 
