Australotomurus immodestus Mari-Mutt & Greenslade, 1985 Figs 8, 11, Tables 2 – 3 Diagnosis. Size of adult specimens about 2 mm, background light bluish, dorsally with dark spots and bands, ventral head and trunk almost black. Ant. II undivided (antennae with five segments). Males’ Ant. Ib internally with about 45 modified short densely ciliate chaetae plus 19 minute smooth chaetae, Ant. II internally with 21–25 modified chaetae of different shapes, 2–3 of them very large. Males’ Ant. II straight (not angled). Antero-lateral head without clusters of differentiate chaetae. Labial basomedian field posteriorly with 10 ciliate chaetae internal to E. Dorsal head with A3, A4–4e, A6p, M1, M2, M3i, S0’, S1e, S2, S4i, S4e, S5a, S5e, and Ps 2 mac, M0, Ps 3, and Ps 5 mac absent (Fig. 11A). Abd. II with a3a and m3ep mac, plus three mac on the m3ea complex, m4 and p4 mac absent (Fig. 11B); Abd. III with a2–2a, a3, and m3ea mac, m3p, m3eai, m 3ei, and p3 mac absent (Fig. 11C); Abd. IV macrochaetotaxy reduced, with A2, B5, and xa mac, A5, xp, C4, T1, and T6 mac absent (Fig. 11D). Trochanteral organ with about 34–35 spine-like chaetae. Unguis with two unpaired inner teeth. Tenaculum with 8 chaetae (adapted from Mari-Mutt & Greenslade 1985).

Published as part of Bellini, Bruno Cavalcante, Greenslade, Penelope, Baquero, Enrique, Jordana, Rafael & Souza, Paolla Gabryelle Cavalcante De, 2022, A synthesis of the current knowledge on the Australian Orchesellidae (Collembola, Entomobryoidea), pp. 221-257 in Zootaxa 5115 (2) on page 240, DOI: 10.11646/zootaxa.5115.2.3, http://zenodo.org/record/6352296