Ants were collected from lowland dipterocarp rain forest sur-rounding the Kuala Belalong Field Studies Centre (KBFSC),in the Temburong District of Brunei Darussalam (0432¢N,11510¢E). From the 16 COCY species present there, wechose to work with the small-bodiedCamponotus[Colobopsis]sp. ‘YG’ (‘yellow goo [product]’; voucher # DWD KB02-108, in the Natural History Museum of Los AngelesCounty). This species exhibited the highest frequency of gas-tral rupture in trials with forceps, and it has the greatestwhole-body ‘investment’ in product on the basis of concen-tration: weight (Cook 2008). Smaller-bodied ants alsopresent fewer barriers to histological study than do theirlarger-bodied counterparts.