Note (one of) the (undeployed) "eversible vesicle(s)": visible as a thin, whitish-red, band -- below the right elytron and continuing back along lateral edge of abdomen.

In this image, the front left tarsi weren't quite detailed/magnified enough for me to discern whether this is a male or female, using the criteria in the last paragraph on this page (which takes a while to load).

[For further info, see comments under first image in this series.]