Left: Worker on everlasting pea
Lathyrus latifolia flower. Note the relatively narrow yellow thoracic
collar and band, distinguishing this species from the very similar B.
hortorum.
Photo: Steve Falk
Above: The dark form of B. ruderatus - var. harrissellus.
Photo: Phil Clayton
Identification aids Below: On the left is a queen of B. ruderatus (pale form) and on the
upper right
is a queen B. hortorum, with a queen B. jonellus at lower
right.
B ruderatus queens are often considerably larger than B hortorum
queens. Note also the more neatly "trimmed" look of the B. ruderatus
- the B. hortorum and B jonellus are scruffier looking. Also, B. ruderatus
often looks darker than B. hortorum/jonellus.
B. jonellus looks somewhat like a small, fluffy B. hortorum with
a short face. Photos: Steve Falk
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