Lepidocyrtus (Setogaster) postcaeruleus

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 : 118

Lepidocyrtus (Setogaster) postcaeruleus nom. nov.

Figs 6 and 38 , Tabs 2–3

Trichogaster caerulea Salmon, 1951 (in Salmon 1951a)

Setogaster caeruleus (Salmon, 1951) (according to Salmon 1951b, in Salmon 1964) Lepidocyrtus caeruleus (Salmon, 1951) comb. nov., non Lepidocyrtus caeruleus Ritter, 1911 [homonymy]

Material examined. Holotype (J. T. Salmon Colln Nº 60). SINGAPORE, Catchment Area Jungle, 1.331737N 103.781941E, 30 m asl, ix.1949, in leaf mould, M.W.F. Tweedie, Te Papa Museum, Wellington, New Zealand.

Description. Body length (without head and furca) 0.46 mm. Mesothorax not projecting over the head. Body dorsoventrally compressed with blue pigment present on antenna, head, thorax, and abdomen (but see original description in Salmon 1951a); densely black pigmented ocular areas ( Fig. 6 ). Antenna, legs, ventral tube, and dorsal surface of the manubrium unscaled.

Prelabral chaetae ciliated. Labial chaetae?M2?EL1L2 ciliated, chaetae M1 and R not visible. Head and body chaetotaxy not visible.

Unguis with highly developed basal pair of long needle-like teeth at 15% from base of inner edge; unguiculus truncate; spatulate tibiotarsal tenent hair ( Fig. 38 ). Dental basal tubercle not visible (or absent). Mucronal basal spine with spinelet.

Discussion. It was not possible 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. After transfer of Trichogaster caerulea Salmon to the genus Lepidocyrtus , comb. nov., the specific name of Lepidocyrtus caeruleus (Salmon, 1951) is homonymic with Lepidocyrtus caeruleus Ritter, 1911 . For this reason a new name was needed for the transferred species and Lepidocyrtus postcaeruleus nom. nov. is proposed for Salmon's species. Moreover, this species belongs to subgenus Setogaster then the complete name of this species would be Lepidocyrtus (Setogaster) caeruleus (Salmon, 1951) vs Lepidocyrtus (Lepidocyrtus) caeruleus Ritter, 1911 .

Figures

FIGURES 1 – 8. Lepidocyrtus (Setogaster) studied. 1 – 2, L. (Setogaster) nigrofasciatus; 3, L. (Setogaster) praecisus; 4, L. (Setogaster) kuakea; 5, L. (Setogaster) fasciatus; 6, L. (Setogaster) coerulea; 7 – 8, L. (Setogaster) spp.

FIGURES 36 – 38. Lepidocyrtus (Setogaster) fasciatus and L. (S.) postcaeruleus. 36, L. (S.) fasciatus abd. III lateral tuft of filaments; 37, L. (S.) fasciatus third leg apex with unguis and unguiculus. 38, L. (S.) postcaeruleus third leg apex with unguis and unguiculus.