Gatekeeper with red spots

Gatekeeper with red spots

Observation - Gatekeeper with red spots. Description: This Gatekeeper seems to have two unusual red spots or lumps where the thorax meets the abdomen. I've not seen these before and wondered if anyone could shed any light on these.

This Gatekeeper seems to have two unusual red spots or lumps where the thorax meets the abdomen. I've not seen these before and wondered if anyone could shed any light on these.