The Bloomington Drosophila Stock Center has identified l(3)CHa2 (FBal0195754) as an allele of the Exo84 gene. l(3)CHa is group 1 in Jiang and Crews, 2006 (FBrf0193980, see also FBrf0199131). l(3)CHa2 is homozygous lethal and fails to complement Df(3R)Exel6204 (also shown by Jiang and Crews, 2006, FBrf0193980; RRID:BDSC_7683), Df(3R)BSC751 (RRID:BDSC_26849), Df(3R)ED6232 (RRID:BDSC_8105), and Exo84Z4840 (RRID:BDSC_66719). Whole genome sequencing reveals the following mutation in the Exo84 gene: l(3)CHa2 = Exo84CHa2, R20stop (CGA->TGA)