DescriptionMale’s thorax has blue sides and a black top with two pairs of pale dots; appendages shown in figure. Female’s thorax is sometimes coloured like the male’s (dots elongated), but more often green or tan to pink with dark lines of variable thickness above; the abdomen has a blue tip. Most females darken with age; they often have a vulvar spine. Length: ♂ 29 mm, ♀ 30 mm.
Flight PeriodB.C., early April to late October.