Hanworth

Large-headed Resin Bee (Heriades truncorum)





O Lomholdt 1984

The wing venation suggests a Stigmus Sp (2nd image down) rather than Spilomena Sp












Nesting in wood

Entering quite large holes and very small ones











Antennal segments 4 & 5 the same size

Suggests Stigmus solskyi

as in

Stigmus pendulus the antennal segment 4 is distinctly longer than 5







Stigmus Sp

None of the images show the mesopleuron, which in the case of S solskyi is coarsely reticulate-rugose whereas S pendulus only has weak rugae.

Eventually the pale humeral tubercles were seen confirming this as Stigmus solskyi
in the other Stigmus sp in the UK they are black.

Tags: Large-headedResinBee, StigmusSp