Mating Between Two Species: Diplocodes trivialis-Diplacodes nebulosa

Mating Between Two Species: Diplocodes trivialis-Diplacodes nebulosa

I spotted a tandem pair between two Diplacodes species - Diplacodes trivialis (male) and Diplacodes nebulosa. Diplacodes trvialis (hw = 23 mm) is normal much larger than Diplacodes nebulosa (hw = 19 mm). However, the population of Diplacodes trvialis at a site in Kajang 2 is much smaller in size (hw = 17-19 mm). The below photo shows a small-sized male (blue colour) Diplacodes trivialis in tandem with a female Diplacodes nebulosa. 

Diplacodes trivialis (male; blue)-Diplacodes nebulosa (female; yellow)

Kajang 2, Kajang, Selangor