Systematics of the parasitoid wasp genus Aulacus Jurine (Hymenoptera: Evanioidea: Aulacidae) from Australia Author Jennings, John T. Australian Centre for Evolutionary Biology and Biodiversity, and School of Biological Sciences, The University of Adelaide, SA 5005, Australia & Corresponding author. E-mail: J _ JENNINGS @ onaustralia. com. au Author Parslow, Ben A. School of Biological Sciences, College of Science and Engineering, Flinders University, Adelaide, SA 5042, Australia Author Austin, Andrew D. Australian Centre for Evolutionary Biology and Biodiversity, and School of Biological Sciences, The University of Adelaide, SA 5005, Australia text Zootaxa 2018 2018-12-21 4538 1 1 113 journal article 10.11646/zootaxa.4538.1.1 381202fb-343a-4c47-b17f-e3ad6df1b0fd 1175-5326 3771367 E4D8D897-3CBE-4FA6-95C3-143A945229A4 Aulacus houstoni Jennings, Austin & Stevens, 2004 Aulacus houstoni Jennings et al. 2004a: 117 ; Jennings 2010 [on-line checklist]. This species was described recently by Jennings et al. (2004a) from the Fitzgerald River National Park, Western Australia . In addition to the description provided in Jennings et al. (2004a) , the ovipositor guide is medial, transverse and broad, with short setae on the distal margin and in groove. Aulacus houstoni keys out with A. longiventris and A. belairensis . The three species can be separated readily by the lateral medial carina above the toruli, which is present in A. longiventris and A. houstoni but is absent in A. belairensis . For additional differences, see under A. belairensis above.