Lepidocyrtus (Setogaster) fasciatus (Salmon, 1951) Salmon, 1951

Mateos, Eduardo & Greenslade, Penelope, 2015, Towards understanding Lepidocyrtus Bourlet, 1839 (Collembola, Entomobryidae) I: diagnosis of the subgenus Setogaster, new records and redescriptions of species, Zootaxa 4044 (1), pp. 105-129 : 115-118

publication ID

https://dx.doi.org/10.11646/zootaxa.4044.1.6

publication LSID

lsid:zoobank.org:pub:80A698E3-7ADF-4ECD-8F8E-12B57530C682

DOI

https://doi.org/10.5281/zenodo.5628585

persistent identifier

https://treatment.plazi.org/id/03F787EF-E017-FFEB-119C-F8DC0BB9FE95

treatment provided by

Plazi

scientific name

Lepidocyrtus (Setogaster) fasciatus (Salmon, 1951)
status

comb.nov.

Lepidocyrtus (Setogaster) fasciatus (Salmon, 1951) comb.nov.

Figs 5 View FIGURES 1 – 8 , 36– 37 View FIGURES 36 – 38 , Tabs 2–3

Trichogaster fasciata Salmon, 1951 ( Salmon 1951 a)

Setogaster fasciatus (Salmon, 1951) (according to Salmon 1951 b, in Salmon 1964) Material examined. Holotype (J. T. Salmon Colln Nº 36). SINGAPORE, McRitchie Reservoir, 1.330470 N 103.82950 E, 37 m asl, 22.x. 1949, among fibrous roots and dead vegetation, M.W.F. Tweedie, Te Papa Museum, Wellington, New Zealand.

Description. Body length (without head and furca) 0.82 mm. Mesothorax not projecting over the head. Body dorsoventrally compressed with dark blue pigment present on ant.I–IV, along edges of thoracic terga, dorsolaterally around posterior half of abd.II, the entire of abd.III, V and VI; abd.IV with violet shading laterally and dorso-posteriorly; densely black pigmented ocular areas ( Fig. 5 View FIGURES 1 – 8 ).

Antenna without scales. Antennal chaetotaxy not visible; without apical bulb.

Ciliated prelabral chaetae. Labial anterior row formed by five smooth chaetae (a 1 –a 5); posterior row formed by ciliated chaetae with formula M 1 M 2?EL 1 L 2; chaeta R not visible (marked with?). Ventral cephalic groove with 3 + 3 ciliated chaetae.

Dorsal macrochaetal formula as AoA 2 s A 2 A 4 ???/00/0??0+ 3. Cephalic chaetae of rows M and S not visible; A 3 mesochaeta, A 4 macrochaeta.Th.II–III without macrochaetae (micro/mesochaetae chaetotaxy not visible). Abd.I– II–III dorsal chaetotaxy not visible. Abd.III with a lateral tuft of ± 100 long ciliated filaments ( Fig. 36 View FIGURES 36 – 38 ). Abd.IV macrochaetotaxy as in L. (S.) nigrofasciatus (see Fig. 25 View FIGURES 25 – 26 ); on bothriotrichum T 2 complex chaetae a and D 1 detached and only insertions visible, but chaeta m present as paddle-like fan-shaped morphology (as in L. (S.) nigrofasciatus , see Fig. 26 View FIGURES 25 – 26 ); with two lateral pseudopori located external to chaetae r 4 –r 5.

Ventral tube and legs without scales. Unguis with a highly developed basal pair of teeth at 16 % of the inner edge, and with one small inner tooth at 90 % from the base of inner edge; unguiculus truncate; spatulate tibiotarsal tenent hair ( Fig. 37 View FIGURES 36 – 38 ).

Manubrium without scales on dorsal surface; dental basal tubercle not visible (or absent); mucronal basal spine with spinelet.

Discussion. It was impossible to describe more details of the chaetotaxy of this specimen because of the state of the slide, but the characters observed allow us to assign the specimen to the subgenus Setogaster.

Kingdom

Animalia

Phylum

Arthropoda

Class

Entognatha

Order

Collembola

Family

Entomobryidae

Genus

Lepidocyrtus

Loc

Lepidocyrtus (Setogaster) fasciatus (Salmon, 1951)

Mateos, Eduardo & Greenslade, Penelope 2015
2015
Loc

Setogaster fasciatus

Salmon 1951
1951