Ancestral state reconstruction and sampled tip states of sterno-coxal and tergo-coxal musculature across the Hymenoptera. Blue = Formicidae; yellow = Leptanillinae. Left and right topologies are identical. Node reconstructions not shown when all sampled descendants were scored as uncertain or inapplicable. See Supplementary Document 1 for explanation of inapplicability and additional notes. Cells represent characters. Cell fill represents character states: white = absent; black = present; diagonal lines = polymorphic absent/present; grey dots = uncertain; solid grey = inapplicable. Left tree: sterno-coxal muscles; cells in left-to-right order: 9vcm1 (a), 9vcm2 (b), 9vcm3 (c). Right tree: tergo-coxal muscles; cells in left-to-right order: 9dcm1 (g), 9dcm2 (f), 9dcm3), 9dcm4 (d).