Description of a new Psithyrus
Subtitle: with an account of Psithyrus laboriosus, and notes on bumblebees
By: by Joseph Bequaert and Otto E. Plath.
Contributors: Plath, Otto Emil, 1885-
Series: Bulletin of the Museum of Comparative Zoölogy at Harvard College -- v. 67, no. 6; Bulletin of the Museum of Comparative Zoology -- v. 67, no. 6
Publisher: Printed for the Museum
Published: 1925
Place of publication: Cambridge, Mass
Language: eng
Number of pages: 288
Subjects: Cuckoo bumblebees; Bumblebees.
Other titles: New Psithyrus
Notes: Includes bibliographical references.