The Roper River scrub robin (Drymodes superciliaris colcloughi ), also known as the allied scrub robin, is a putative subspecies of the northern scrub robin, a bird in the Petroicidae, or Australasian robin family. Whether it ever existed is doubtful; if it did it is almost certainly extinct.
There are only two specimens of the scrub robin, the holotype, a male held in the American Museum of Natural History (registered 585473), and a female in the Queensland Museum. Of these, Mathews said in his original description that the taxon differed from the nominate subspecies D. s. superciliaris, confined to the northern end of the Cape York Peninsula in Queensland, more than 800 km north-east of the Roper, by "being much redder on the back and entirely reddish-buff on the undersurface". Simon Bennett, in a 1983 overview in the Emu found that there were valid, though slight, differences between the birds from the two localities, in particular with the Roper male having its "throat, ear-coverts and forehead washed with rufous". However, Richard Schodde and Ian Mason commented in 1999 that the Roper River specimens did not differ significantly in colouration and measurements from those of the Cape York Peninsula.
