Bees - BarbaraRibble
P167BombusPensylvanicusAmBbee872
June 1, 2017  10:20 a.m.  P1670872
Here is an American Bumble Bee, Bombus pensylvanicus, checking out a flower at LBJ WC.  I think this is a typical worker (female 14-18mm).  Queens are earlier in the year and bigger (21-25mm) and males are long and slender with more yellow bands on the abdomen (16-22mm).

P167BombusPensylvanicusAmBbee872
June 1, 2017 10:20 a.m. P1670872
Here is an American Bumble Bee, Bombus pensylvanicus, checking out a flower at LBJ WC. I think this is a typical worker (female 14-18mm). Queens are earlier in the year and bigger (21-25mm) and males are long and slender with more yellow bands on the abdomen (16-22mm).