Go to National Library of New Zealand Te Puna Mātauranga o Aotearoa
Volume 70, 1940-41
This text is also available in PDF
(23 MB) Opens in new window
– 345 –
Genotype: Neocerus spinosus sp. nov.

The following characters serve to distinguish this genus:—Scales are present, Abd. III longer than Abd. IV; dens lightly annulated and corrugated, two or three-segmented and spined. Mucro haired. Third antennal segment shorter than fourth. Eight ocelli to each side. Tenent hairs much reduced. For explanation of formula for dental spines see under Tomocerus, p. 346.

Key to the Species of Neocerus.
1. Creamy-white to orange-coloured species with two short, non-clavate tenent hairs to each foot. N. spinosus sp. nov.
2. Greyish-violet coloured species with one short, clavate tenent hair to each foot. N. insolitatus sp. nov.

Neocerus spinosus sp. nov. Plate 55, figs. 269–272; Plate 56, fig. 273.

Colour: In life, cream to orange mottled with black; mounted and with scales present, greyish-orange; denuded of scales, cream to orange. Irregular black markings on sides of body, particularly in anterior region. First three antennal segments orange to brownish, Ant. IV mauve. Legs and furcula pale cream to brown, tibio-tarsi mauve.

Clothing: Heavy clothing of large, longitudinally-ribbed and transversally-striated scales. Occasional plain setae mainly around posterior region and on legs.

Body: Length up to 5·2 mm. Antennae twice as long as head, the four segments related as 10: 16: 17: 23. Ocelli, eight to each side, all large and arranged in two rows of 5 and 3 respectively. No post-antennal organ. Abd. III longer than Abd. IV as 20: 12. Ventral tube long cylindrical, with terminal knob-like swelling.

Legs: Claw with one very long inner tooth one-quarter down from claw base. Two long exterior lateral basal teeth. Empodial appendage simple, lanceolate, and passing into a long wavy filament which reaches beyond tip of claw. Two short slender non-clavate tenent hairs to each foot.

Furcula: Scaled and with occasional plain setae. Manubrium to mucrodens as 37: 55. Dens two-segmented, segments related to mucro as 19: 27: 9. Mucro with many long setae and four teeth, a large, recurved apical tooth, two small ventral teeth, and one extremely large ventral tooth supplied with stout basal spine. From seven to ten prominent corrugations at distal end of dens. At distal end of first segment of dens two very large tridentate spines. Remaining dental spines simple and arranged in

– 346 –

two series, one of equal spines and the other of unequal spines. Equal spines arranged according to formula 14/20–25, and unequal spines according to formula 9, 0–I, 0–1, 0–III/2, I, 1–2, I, 1, I, 1, I, 1, I, 1, III, 2. In addition, numerous scattered small spines.

Localities: Lake Brunner, in bush soil and debris in forest; South Westland, in forest near the Karangarua River, amongst bush debris and soil; Lake Kanieri, in leaf debris in kahikatea forest.

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

Type: Slide 3/630 and Figured Paratype: Slide 3/631, Dominion. Museum Collection.

Neocerus insolitatus sp. nov. Plate 56, figs. 274–275.

Colour: In life and mounted, body, head, legs, and furcula strong greyish-violet.

Clothing: Of typical scales and occasional plain setae.

Body: Length up to 2·5 mm. Antennae twice as long as head, the four segments related as 7: 10: 11: 16. Mesothoracic terga completely covers prothorax and overlies slightly hind portion of head. Segmentation of body rather indistinct. Abd. III longer than Abd. IV as 19: 12. Ventral tube short and cylindrical. Ocelli, eight to each side, all large, arranged in two rows of five and three, respectively.

Legs: Claw with one large inner basal tooth, two exterior lateral basal teeth, and basally with up to eleven folds. Empodial appendage lanceolate and passing into a long wavy filament which reaches beyond end of claw. A single unusually short clavate tenent hair, about one-quarter length of claw, to each foot. A long prominent basal spine on each side of claw.

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

Furcula: Manubrium to mucrodens as 27: 49. Dens three-segmented, last segment with five prominent corrugations. Dens faintly annulated and coarsely corrugated. Mucro similar to N. spinosus. Dental spines in two series, formula being 2, 11/8–12 and 0/12 with numerous irregularly-placed very small spines.

Locality: Waiho Gorge, amongst leaf debris in forest.

[The section below cannot be correctly rendered as it contains complex formatting. See the image of the page for a more accurate rendering.]

Type: Slide 3/637, Dominion Museum Collection.