Atalotegaeus monteithi (Colloff, 2023)
publication ID |
https://doi.org/10.11646/zootaxa.5365.1.1 |
publication LSID |
lsid:zoobank.org:pub:1DC72714-D0E8-49D8-821D-03C6B2A7AE80 |
DOI |
https://doi.org/10.5281/zenodo.10167874 |
persistent identifier |
https://treatment.plazi.org/id/03A2C77C-4645-FFEA-C79C-B537130DDF78 |
treatment provided by |
Plazi |
scientific name |
Atalotegaeus monteithi |
status |
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Atalotegaeus monteithi (J. & P. Balogh, 1983) comb. nov.
( Fig. 17 View FIGURE 17 )
Neseutegaeus monteithi View in CoL J. & P. Balogh, 1983b, p. 292.
Dimensions. Holotype female 469 μm, breadth 365 μm.
Redescription of adult. Prodorsum: rostrum acute; rostral setae ( ro) short, straight, smooth, visible in dorsal aspect. Lamellae broad, smooth, separated medially, not extending as far as apex of rostrum, lateral margins convex, translamella incomplete ( Fig. 17a View FIGURE 17 ); lamellar seta ( le) very short, fine, flagelliform, emerging from shallow excavation on apex of cusp, with sharp tooth medially. Interlamellar setae ( in) long, smooth, recurved, on posteromedian margins of lamellae. Bothridia broad, with anterior condyle of enantiophysis H in form of V-shaped flange; bothridium projecting beyond inner margin of humeral processes, openings angled laterally, lip with long cylindrical posterior projection. Bothridial setae very long, curved, bacilliform, smooth.
Notogaster: ratio of length to breadth: 0.83; notogaster rounded, convex. Humeral process narrow, fine, pointed, waisted basally, lateral margin convex, extending to point level with middle of lamella ( Fig. 17a View FIGURE 17 ), with prominent mound at base and laterally and smaller one posteriorly. With eight pairs of notogastral setae: l, h 2 and h 3 and p series; setae of l and h series smooth, recurved, shorter than distance between them, sub-equal in length, setae la and lm in centrodorsal position, others sub-marginal; p series shorter than l and m series.
Ventral aspect: subcapitulum acute apically, mentum as long as broad; subcapitular setae short, smooth, sub-equal in length ( Fig. 17b View FIGURE 17 ). Chelicerae chelate-dentate and of normal proportions. Tutorium short, rounded apically, not visible in ventral aspect. Epimeral plates discrete except IV, broadly separate in midline, sub-rectangular to sub-triangular, plates III shorter than others; large gap between plates II and III, epimeral setation 3-1-3-3; epimeral setae sub-equal in length: 3a-c clustered on medial part of plate. Pedotectum I (pd I) poorly-developed, with short curved point; pd II small, pointed; discidium acute, pointed. Ventral plate broader than long. Genital and anal plates about half length of genital plates apart; genital plates 62 µm long, with six pairs of minute setae, sub-equal in length, g 5 displaced laterally; lyrifissure iad in para-anal position, close to margin of anal plate, less than length of iad. Anal plates lozenge-shaped, 90 µm long; setae of the ad series very short, setiform, thin, on faint curved ridge posterior to anal plates. Pre-anal organ (po) T-shaped.
Material examined and locality data. Holotype, ANIC accession no. 53-650, leaf litter, Nothofagus moorei rainforest, Barrington Tops National Park, via Salisbury , New South Wales, 1,524 m., coll. G.B. Monteith, 10.ii.1965.
Diagnosis. Atalotegaeus monteithi can be distinguished from other species in the genus by the following combination of characters: (1) the gap between epimeral plates II and III; (2) the curved, transverse ridge posterior of the anal plates; (3) the short, flagelliform lamellar setae; (4) the long cylindrical projection on the lip of the bothridium; (5) the relatively short, strongly recurved setae la and lm; (6) the mound-like structures at the base of the humeral process; (7) the partial translamella; (8) the anterior condyle of enantiophysis H.
Remarks. The recombination of Neseutegaeus monteithi to Atalotegaeus is detailed above in the remarks section on Neseutegaeus . The description of N. monteithi by J. and P. Balogh (1983a) differs in certain respects from the redescription of the holotype above. I found the bothridial setae were smooth apically, not ciliate and the bothridium has a large apical projection. Also, the apex of the lamellar cusp has a medial tooth and the two mound-like structures at the base of humeral process are larger than originally illustrated.
ANIC |
Australian National Insect Collection |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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SubOrder |
Oribatida |
SuperFamily |
Eutegaeoidea |
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Genus |
Atalotegaeus monteithi
Colloff, Matthew J. 2023 |
Neseutegaeus monteithi
Balogh, J. & Balogh, P. 1983: 292 |