The laboratory population of B. tryoni was initially supplied as
pupae by the Department of Employment, Economic Development and Innovation (DEEDI), Indooroopilly, Queensland.
Thereafter, it was reared following the general technique of
Heather and Corcoran (1985) at the University of Queensland
Gatton Campus. Adults were kept in 50 cm × 50 cm × 50 cm
aluminium-framed cages in a room maintained at 25 ± 1°C,
RH 60 ± 10%, and 14:10 (light : dark) photoperiod. Adults
were provided with water, sugar cubes and yeast hydrolysate
(MP Biomedicals). Yeast hydrolysate (40 g) was mixed with
water (12 mL) to form a paste and then scraped onto a piece of
cardboard.