Australotomurus womersleyi Mari-Mutt & Greenslade, 1985

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), Zootaxa 5115 (2), pp. 221-257 : 246-247

Australotomurus womersleyi Mari-Mutt & Greenslade, 1985

Figs 8 , 16–17 , Tables 2 – 3

Diagnosis. Size of adult specimens about 3 mm, dorsally with several dark spots and bands, Abd. III–IV more intensely pigmented; or specimens light with well-defined longitudinal bands of dark pigment; or even specimens almost entirely pigmented. Ant. II undivided (antennae with five segments). Males’ Ant. Ib internally with about 30 modified short densely ciliate chaetae plus seven minute smooth chaetae, Ant. II internally with 13–22 modified chaetae, four of them very large. Males’ Ant. II internally angled. Antero-lateral head of males with 3–5 outstandingly thick sclerotized spines. Labial basomedian field posteriorly with 5–11 ciliate chaetae internal to E. Dorsal head with A3–3e, A4–4e, A6p, M1, M2–2p, M3i, S0’, S2, S4i, S4a, S5a, and Ps 3 mac, M0, Ps 2, and Ps 5 mac absent ( Fig. 16A ). Th. II with four p1i2, m4p2, and m4i2 mac present, m4ai complex with three mac, m5 mac absent ( Fig. 16B ); Th. III with two p1i2 and m1a mac present, m5p mac absent ( Fig. 16C ); Abd. I macrochaetotaxy complex, with a1ae–1ae2, a2ae–2ae2, a3a–3ai2, p6, and m6 mac ( Fig. 16D ); Abd. II with a2a2, a3a, m 3ei, and m3ep mac, plus six mac on the m3ea complex, m4 and p4 mac absent ( Fig. 17A ); Abd. III with a2a, a3a, and m3ea mac, a2–3 present or absent, m 3ei, m3eai, m3p, and p3 mac absent ( Fig. 17B ); Abd. IV with A1–3, Ae 2, Ae 5, B3–5, xa, xp, and C4 mac, B4 and B6 present or absent, A5, T1 , and T6 mac absent ( Fig. 17C ). Trochanteral organ with about 24 spine-like chaetae. Unguis with three unpaired inner teeth. Tenaculum with 7–9 chaetae (adapted from Mari-Mutt & Greenslade 1985).

Remarks. The distribution of all Australotomurus species is presented in Fig. 8 ; the genus was recorded from continental Australia and Tasmania ( Greenslade 2021). Further details on their morphology are listed in Mari-Mutt & Greenslade (1985) and Greenslade & Jordana (2014).

Figures

FIGURE 8. Distribution of Australian Orchesellidae.

FIGURE 16. Dorsal macrochaetotaxy of Australotomurus womersleyi: A, head; B, Th. II; C, Th. III; D, Abd. I.

FIGURE 17. Dorsal macrochaetotaxy of Australotomurus womersleyi: A, Abd. II; B, Abd. III; C, Abd. IV.