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Über Halictus punctatissimus Schenck
Authors: Johann Dietrich Alfken
Published in Entomologische Nachrichten, in 1898, in volume 24, pages 305-306
Created: 2017-06-15, modified: 2017-06-15
Megachile schauinslandi n. sp
Authors: Johann Dietrich Alfken
Published in Entomologische Nachrichten, in 1898, in volume 24, pages 340-341
Created: 2017-06-15, modified: 2017-06-15
Die nordwestdeutschen Prosopis-Arten
Authors: Johann Dietrich Alfken
Published in Entomologische Nachrichten, in 1900, in volume 26, pages 233-244
Created: 2017-06-15, modified: 2017-06-15
Nomada flavoguttata K. var. höppneri
Authors: Johann Dietrich Alfken
Published in Entomologische Nachrichten, in 1898, in volume 24, pages 158-159
Created: 2017-06-15, modified: 2017-06-15
Die Xylocopa-Art der Hawaiian Islands
Authors: Johann Dietrich Alfken
Published in Entomologische Nachrichten, in 1899, in volume 25, pages 317-318
Created: 2017-06-15, modified: 2017-06-15
Drei neue Anthrena-Arten aus Japan
Authors: Johann Dietrich Alfken
Published in Entomologische Nachrichten, in 1900, in volume 26, pages 177-180
Created: 2017-06-15, modified: 2017-06-15
Die nordwestdeutschen Prosopis-Arten. (Hym.)
Authors: Johann Dietrich Alfken
Published in Zeitschrift Für Systematische Hymenopterologie Und Dipterologie, in 1902, in volume 2, pages 65-91
Created: 2015-04-08, modified: 2015-04-08
Zur Kenntnis einiger Centris-Arten
Authors: Johann Dietrich Alfken
Published in Zeitschrift Für Systematische Hymenopterologie Und Dipterologie, in 1903, in volume 3, pages 211-213
Created: 2015-04-08, modified: 2015-04-08
Zwei neue Bienen aus Japan. (Hym.)
Authors: Johann Dietrich Alfken
Published in Zeitschrift Für Systematische Hymenopterologie Und Dipterologie, in 1903, in volume 3, pages 209-211
Created: 2015-04-08, modified: 2015-04-08
Beitrag zur Synonymie der Apiden. (Hym.)
Authors: Johann Dietrich Alfken
Published in Zeitschrift Für Systematische Hymenopterologie Und Dipterologie, in 1904, in volume 4, pages 1-3
Created: 2015-04-08, modified: 2015-04-08
Ueber einige von Arnold beschriebene Bienen
Authors: Johann Dietrich Alfken
Published in Zeitschrift Für Systematische Hymenopterologie Und Dipterologie, in 1908, in volume 8, pages 11-14
Created: 2015-04-08, modified: 2015-04-08
Neue Coelioxys-Arten von Cypern (Hym. Apid.)
Authors: Johann Dietrich Alfken
Published in Mitteilungen der Münchner Entomologischen Gesellschaft, in 1940, in volume 30, pages 1058-1059
Created: 2016-09-15, modified: 2016-09-15
Neue und wenig bekannte Prosopis-Arten. (Hym.)
Authors: Johann Dietrich Alfken
Published in Zeitschrift Für Systematische Hymenopterologie Und Dipterologie, in 1905, in volume 5, pages 91-95
Created: 2015-04-08, modified: 2015-04-08
Nomada zonata Panz. und N. rhenana Mor
Authors: Johann Dietrich Alfken
Published in Zeitschrift Für Systematische Hymenopterologie Und Dipterologie, in 1901, in volume 1, pages 363-365
Created: 2018-10-03, modified: 2018-10-03
CONVOLVULACEAE
Authors: D Wijnands | A D J Meeuse
Published in Bothalia, in 1990, in volume 20, issue 2, pages 208
Created: 2025-10-05, modified: 2025-10-05
Species report
Authors: D A Turner | D J Pearson
Published in Scopus, in 1987, in volume 9, pages 146-159
Created: 2014-03-20, modified: 2014-03-20
Analyses bibliographiques
Authors: P Joly | D Lamy | N Arpin | J Perreau | J Mouchacca | D N Pegler
Published in Cryptogamie. Mycologie, in 1990, in volume 11, issue 4, pages 329-334
Created: 2023-04-23, modified: 2025-12-17