Couple of bees for ID.

[serendipity]

1




Are these male and female Lapidarius?

[eucera]

I can only see the first pic... and it is a male B. lapidarius

[Farplace]

There is only the one image..... but how can you tell the difference in gender between male and female B. lapidarius?

[2dogs2000]

I can see both images if I click on the red cross for second image. I think the difference is seen by the antenna. One has fairly straight antenna and the other has a definite bend. (Hope I haven't just made this up).

[JRsbugs]

The second pic is there, either by clicking on the box or looking at the one next to the male.

It is a female B. lapidarius, the antennae are one thing to go by if you can be sure there are 12 segments in total instead of 13 which males have. The face of the female has black hairs, males yellow.

I would say this is a queen, the hind leg shows the broad corbiculum which has the pollen carrying hairs and if that can be seen clearly you don't need to see the antennae. It's really too late for female workers I think, I haven't seen any lately other than B. pascuorum and B. terrestris.

Janet

[Matt Smith]

Originally Posted by 2dogs2000

I can see both images if I click on the red cross for second image. I think the difference is seen by the antenna. One has fairly straight antenna and the other has a definite bend. (Hope I haven't just made this up).

Bends in the antennae are a poor character and of no real use in sexing bumblebees - depending on the photo and what the bee is doing both sexes can have "bends"

First pic is a male - yellow collar band, yellow face, red tail

Second pic is a tatty female (worker) - red tail, black corbicular hairs.