. Biological survey of the Mount Desert Region. Natural history -- Maine Mount Desert Island. THE MOUNT DESERT EEGION 447 B. TEENARius Say. Orange-banded bumblebee. Common, June 7-Aug. 24. B. TERRicoLA Kbj. Commou all summer. B. VAGANs F. Sm. With us all summer but in smaller numbers than the three next above. PsiTHRUS Lepeletier. The Usurper Bees P. ASHTONi Cress. Bar Harbor; S. W. Harbor; Narrows, June 7-Aug. 14. P. LABORiosus Fab. S. W. Harbor, July 15. P. LABORiosus var. ciTRiNus Smith. Bar Harbor; S. "VV. Har- bor, July 10-Aug. 14. P. TRICOLOR Frankl. Bar Harbor; Tremont, July 19-Aug
. Biological survey of the Mount Desert Region. Natural history -- Maine Mount Desert Island. THE MOUNT DESERT EEGION 447 B. TEENARius Say. Orange-banded bumblebee. Common, June 7-Aug. 24. B. TERRicoLA Kbj. Commou all summer. B. VAGANs F. Sm. With us all summer but in smaller numbers than the three next above. PsiTHRUS Lepeletier. The Usurper Bees P. ASHTONi Cress. Bar Harbor; S. W. Harbor; Narrows, June 7-Aug. 14. P. LABORiosus Fab. S. W. Harbor, July 15. P. LABORiosus var. ciTRiNus Smith. Bar Harbor; S. "VV. Har- bor, July 10-Aug. 14. P. TRICOLOR Frankl. Bar Harbor; Tremont, July 19-Aug. 23. Apidae Apis Linnaeus A. MELLiFicA Linn. Generally distributed. This is the com- mon honey Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Procter, William, 1872-1951; Mount Desert Island Biological Laboratory; Johnson, Charles Willison, 1863-1932; Blake, Charles Henry, 1901-. Philadelphia, The Wistar Institute of Anatomy and Biology
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