The Microtrachelizini from Australia are revised. Four species and one genus are described as new for science (Araiorrhinus zimmermani n.sp., Howeius micropterus n.gen., n.sp., Microtrachelizus altostriatus n.sp. and M. australicus n.sp.). One new synonymy is proposed (M. laevis Damoiseau, 1987 n. syn. of M. montrouzieri Senna, 1903) and two species are recorded as new for Australia (M. montrouzieri and M. occultus Kleine, 1935, the latter removed from synonymy with M. bhamoensis [Senna, 1892]). An identification key and pictures of the habitus are given for the nine Microtrachelizini species presently known from Australia.