The intermetalloid clusters [M ₂ Bi ₁₂ ] ⁴⁺ (M = Ni, Rh) were synthesized as halogenido-aluminates in Lewis-acidic ionic liquids. The reaction of bismuth and NiCl ₂ in [BMIm]Cl·5AlCl ₃ (BMIm = 1-butyl-3-methylimidazolium) at 180 °C yielded black, triclinic (P1) crystals of [Ni ₂ Bi ₁₂ ][AlCl ₄ ] ₃ [Al ₂ Cl ₇ ]. Black, monoclinic (P2 ₁ /m) crystals of [Rh ₂ Bi ₁₂ ][AlBr ₄ ] ₄ precipitated after dissolving the cluster salt Bi _12–x RhX _13–x (X = Cl, Br; 0 < x < 1) in [BMIm]Br·4.1AlBr ₃ at 140 °C. In the cationic cluster [Ni ₂ Bi ₁₂ ] ⁴⁺ , the nickel atoms center two base-sharing square antiprisms of bismuth atoms (symmetry close to D _4h ). The valence-electron-poorer rhodium-containing cluster is a distorted variant of this motif: the terminating Bi ₄ rings are folded to bicyclic “butterflies“ and the central square splits into two dumbbells (symmetry close to D _2h ). DFT-based calculations and real-space bonding analyses place the intermetalloid units between a triple-decker complex and a conjoined Wade-Mingos cluster.