Books by Robbin W. Thorp

Cover of Bumble Bees of North America

Bumble Bees of North America

by Paul H. Williams, Robbin W. Thorp, Leif L. Richardson, Sheila R. Colla

2014
Cover of Bumble bees and cuckoo bumble bees of California (Hymenoptera, Apidae)

Bumble bees and cuckoo bumble bees of California (Hymenoptera, Apidae)

by Robbin W. Thorp

1983
Cover of Bumble Bees Of North America An Identification Guide

Bumble Bees Of North America An Identification Guide

by Robbin W. Thorp

2014
Systematics and ecology of bees of the subgenus Diandrena (Hymenoptera: Andrenidae)

Systematics and ecology of bees of the subgenus Diandrena (Hymenoptera: Andrenidae)

by Robbin W. Thorp

1969

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