Zoology Publications from Victoria University of Wellington—Nos. 49 to 51
Family: Setanuridae Salmon, 1964 — Spinanurida n.g
Family: Setanuridae Salmon, 1964
Spinanurida n.g.
Mandibles and maxillae both present and toothed. Mandible without molar area, but typified by large projecting plate-like group of teeth. Ocelli eight to each side. PAO and furcula absent. Unguiculus absent or vestigial as a small mound of cuticular granules. Anal spines present. Setae mainly simple but some may be both finely serrate and finely clavate. Clavate tenent hairs present on tibiotarsi. Ant. IV with apical retractile knob and several types of sensory rods. Cuticle finely granulate and finely tuberculate.
Type species for the genus Spinanurida mandibulata n.sp.
This new genus is closely related to Setanurida, known at present only from East Africa, differing from this genus mainly through the presence of anal spines and the rather unusual morphology of the mandible. The toothlike projection on the mandible which consists of three teeth is very much more prominent than the large group of three basal teeth present on the mandible of Setanurida. The maxilla is very similar in morphology to that of Setanurida (Fig. 4).
Spinanurida mandibulata n.g. et n.sp.
Colour: Creamy-white sparsely overlaid with scattered dark blue pigment granules.
Clothing: Sparsely clothed with short simple curved setae, with longer, tapering, finely serrated setae posteriorly, the latter often with a small apical swelling. Long slender simple setae on the antennae and occasionally on the head and legs.
Figs. 1-9, Spinanurida mandibulata n.g. et sp. Fig. 1, Hind foot. Fig. 2, Hind foot inner margin showing tenent hairs. Fig. 3, Ants. II, III, IV. Fig. 4, Maxilla head. Fig. 5, Head of mandible. Fig. 6, Genital aperture. Fig. 7, Sense organ Ant. III. Fig. 8, Abd. VI showing anal spines and setae. Fig. 9, Ocelli Figs 1 6 and 7 Scale A; Figs. 2, 8 and 9, Scale B; Figs. 3, 4 and 5, Scale C.
Foot: Claw relatively very small, finely granulate, particularly on the inner margin and without any teeth. Unguiculus absent or represented by a tiny granulated swelling. Claw without basal seta, but a very stout almost spine-like seta arises on the tibiotarsus, just above the base of the claw. Two long clavate tenent hairs on the outer edge of each tibiotarsus and three shorter clavate tenent hairs on the inner edge, two being in line further from the claw base than the single one (Fig. 1).
Furcula and tenaculum absent.
Paratype in author's collection.
Locality: Lachen, Sikkim, 9000′ altitude in moss, leaf litter of a pine wood. Lachung, Sikkim, 8610′ altitude in moss and undergrowth of a pine wood.