---

following a recent query I'm adding this image - it shows the black area midway on the femora as on signatus, though on brevirostros it's often slighter as can be seen on the middle femur here. On coronatus the leg is clean yellow I believe but for black only at the basal end. I think this is correct though I still can't explain the extra yellow/orange on the head

On brevirostris females the abdomen on dorsal view typically contracts sharply after tergite 5

Jeremy