Australotomurus morbidus Greenslade & Jordana, 2014

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 : 242

Australotomurus morbidus Greenslade & Jordana, 2014

Figs 8 , 14–15 , Tables 2 – 3

Diagnosis. Size of adult specimens about 2.5–3 mm, background colour white, dorsally with several dark spots and bands in a consistent pattern, Abd. III–IV more intensely pigmented. Ant. II undivided, Ant. III almost subdivided (antennae with five segments). Males’ Ant. Ib externally with about 40–50 modified short densely ciliate chaetae plus 10 minute smooth chaetae anteriorly, Ant. II without dimorphic chaetae, Ant. III internally with five strong long mac. Males’ Ant. II straight, Ant. III internally angled. Antero-lateral head without clusters of differentiate chaetae. Dorsal head with A3, A4, A6p, M0, M2, S2–2i, Ps 2, and Ps 5 mac, S0’, M1, and Ps 3 mac absent ( Fig. 14A ). Th. II lacking p1i2, m4p2, and m4i2 mac, m4ai complex with one mac, m5 mac present ( Fig. 14B ); Th. III lacking p1i2 and m1a mac, m5p mac present ( Fig. 14C ); Abd. I macrochaetotaxy reduced, lacking a1ae–1ae2, a2ae–2ae2, a3a– 3ai2, p6, and m6 mac ( Fig. 14D ); Abd. II with m3ep mac present or absent, 3–5 mac on the m3ea complex, m 3ei, m4, and p4 mac absent ( Fig. 15A ); Abd. III with a2a and a3 mac, a3a–a2, a3i, and m3ea present or absent, m 3ei, m3eai, m3p, and p3 mac absent ( Fig. 15B ); Abd. IV with A1–3, A5, Ae 2–5, B3, B5, C4, and T6 mac, Ae4, Ae8, and Be2 present or absent, T1 mac absent ( Fig. 15C ). Trochanteral organ with about 25 spine-like chaetae. Unguis with three unpaired inner teeth. Tenaculum with 11 chaetae (adapted from Greenslade & Jordana 2014).

Remarks. To interpret the dorsal macrochaetotaxy of the posterior head of this species we only considered the left side of the original description ( Greenslade & Jordana 2014, p. 567, fig. 16).

Figures

FIGURE 8. Distribution of Australian Orchesellidae.

FIGURE 14. Dorsal macrochaetotaxy of Australotomurus morbidus: A, head; B, Th. II; C, Th. III; D, Abd. I.

FIGURE 15. Dorsal macrochaetotaxy of Australotomurus morbidus: A, Abd. II; B, Abd. III; C, Abd. IV; D, Abd. V.