Bulletin of the British Museum (Natural History) Entomology - British Museum (Natural History) (The Museum, 1988)

Bulletin of the British Museum (Natural History) Entomology - British Museum (Natural History) (The Museum, 1988)

Bulletin of the British Museum (Natural History) Entomology - British Museum (Natural History) (The Museum, 1988)

Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus - Dalla Torre, K. W. von (Karl Wilhelm), 1850 -1928 (G. Engelmann, 1894)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1917)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 1903)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 1903)

Species des hyménoptères d'Europe & d'Algérie - André, Ernest, 1838 -1914 (1902)

Das Tierreich - Deutsche Zoologische Gesellschaft. (R. Friedländer, 1910)

Das Tierreich - Deutsche Zoologische Gesellschaft. (R. Friedländer, 1910)