A pilot protocol for a roadside survey of bumblebees was tested along roads in Beltsville, Maryland, U.S.A.

1. Sam Droege Erika Tucker Prepared August 2009

12. Species Female Male Unknown Total B impatiens? 1 1 B. bimaculatus 9 40 49 B. fervidus 4 4 B. griseocollis 8 23 31 B. impatiens 64 64 B. perplexus 1 1 B. unknown 1 1 Grand Total 86 64 1 151

14. Site impatiens? bimaculatus fervidus griseocollis impatiens perplexus unknown nil Grand Total 1 1 1 2 1 1 3 1 1 4 3 2 7 12 5 1 1 6 13 2 15 7 7 2 9 8 3 3 9 1 1 2 10 4 4 11 1 3 4 12 3 1 4 8 13 2 2 14 1 1 15 3 3 6 16 1 1 17 1 1 18 7 1 8 19 1 1 20 1 1 21 1 4 5 22 4 1 1 1 7 23 1 1 24 9 1 10 25 1 1 1 3 26 1 1 27 1 1 28 5 5 29 1 4 5 30 1 1 1 1 4 31 1 1 32 2 3 5 33 1 5 6 34 1 1 35 7 7 36 2 2 37 1 1 2 38 17 17 Grand Total 1 49 4 31 64 1 1 14 165