Go to National Library of New Zealand Te Puna Mātauranga o Aotearoa
Volume 70, 1940-41
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Genus Katianna Börner, 1906.

Fairly large species having Ant. IV sub-divided and Ant. III with a distinct peg-like organ and long strong setae. Setae of head spine-like. Clavate tenent hairs present. Mucro with three unequal lamellae. Abd. III with three pairs of bothriotrichia. Abd. VI with one pair. Three species and one subspecies of this genus are known to occur in New Zealand.

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Key to The New Zealand Species of Katianna.
1. Claw with one inner tooth. 2
Claw with two inner teeth.
(a) Yellowish species with darker mottling. K. australis Womersley
(b) Olive-green species with yellow or lighter green spots K. australis subsp. tillyardi Womersley
2. Claw without tunica. Empodial appendage with inner lamella shorter than outer. Two tenent hairs to each foot. K. antennapartita sp. nov.
Claw with tunica. Inner and outer lamellae of empodial appendage equal in length. Three tenent hairs to each foot. K. purpuravirida sp. nov.

Katianna australis Womersley, 1932. Plate 71, figs. 507–509.

Colour: Yellowish-ochreous with darker mottling dorsally and laterally, terminal segments more yellow. Head with a dark area between the antennal bases and a further similar area on the front extending down to mouth. Antennae dark green, blackish-green apically. Legs and furcula yellow. Ocelli on black fields.

Clothing: Well-clothed with numerous strongly-curved setae.

Body: Length up to 1.75 mm. Antennae twice as long as head. Ant. I: II: III: IV as 2: 5: 5: 11. Ant. IV subdivided into 4–6 sections and with numerous whorls of fine wavy hairs. Ant. III with a peg-like organ near middle. First three segments of antennae with long setae, of which the longest lie flat along the segments.

Legs: Claw long with two inner teeth, one at centre, the other near the tip. Empodial appendage with sub-apical bristle reaching to tip of claw and broad inner angular lamella supplied with two small teeth. Four or five clavate tenent hairs shorter than claw to each foot.

Furcula: Dens about 2 ½ times as long as mucro. Mucro with unequal lamellae, the inside lamellae with serrated margïn.

Locality: This common Australian species was reported from Brookby and Manurewa, Auckland, by Womersley, in 1936. It has not been found elsewhere.

Katianna australis subspecies tillyardi Womersley, 1932.

This differs from the principal form in being a uniform olive green colour with small yellow and lighter green coloured spots on the sides of the body, dorsally and on Abd. VI.

A specimen of this subspecies from Manurewa, Auckland (collected by Mr. E. D. Pritchard) was sent to me by Mr. Womersley, of Adelaide.

Katianna antennapartita sp. nov. Plate 71, figs. 503–506.

Colour: Legs and body ochreous suffused with violet, which is darker posteriorly and has a number of large circular ochreous-coloured marks showing through. Antennae ochreous on segments I and II, very dark brown on segments III and IV. Ocelli on black fields.

Clothing: Typical. Body with long stout setae and spine-like setae on top of head.

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Body: Length 0.6 mm. Cuticle distinctly granulated. Antennae one and one-third times as long as head. Ant. I: II: III: IV as 3: 6: 8: 12. Ant. III with long stout setae on basal half. Ant. IV with particularly prominent subdivisions, making twelve distinct sections to the segment. Ocelli, eight to each side, six large and two small.

Legs: Claw with one small inner tooth just past half-way down; without tunica. Empodial appendage with bristle much longer than claw, outer lamella broad and long, inner lamella broad but short, truncated, only about half as long as outer and having a small spine at the angle. Two clavate tenent hairs as long as claw to each foot.

Furcula: Dens three times as long as mucro. Mucro with three lamellae, one completely serrated, one plain and the other with one tooth apically.

Locality: Akatarawa, amongst leaf debris in forest.

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Type: Slide 3/990, Dominion Museum Collection.

Katianna purpuravirida sp. nov. Plate 71, figs. 500–502.

Colour: Typically deep green with dorsally and laterally on larger part of body, an irregular mottling of bright purple, punctured with small yellow spots. Abd. VI yellow, head yellow, mottled with deep green on front and sides. Antennae dark purplish-brown. Legs green basally and dark brown distally. Furcula green basally, yellowish-brown distally. Ocelli on black patches. A broad green stripe down front of head. Sometimes the purple and the green pigment is more or less reduced when the specimen becomes more yellow.

Clothing: Dorsally and laterally with many long stout slightly curved setae. Similar but smaller setae on legs and antennae. Ant. III with 4–5 excessively long stout setae on basal half. On top of head are numerous shorter and stouter spine-like setae.

Body: Length 0.85 mm. Cuticle distinctly granulated. Antennae almost twice as long as head. Ant. I: II: III: IV as 5: 8: 11: 24. Ant. III with peg-like organ. Ant. IV with 9–11 distinct annulations and apical exertile sac. Ocelli, eight to each side, the central and adjacent inner ocellus very small, remainder large and equal.

Legs: Claw with a single inner tooth at about two-thrids and external tunica. Empodial appendage almost as long as claw with broad inner and outer lamellae; the inner with three small teeth at its widest part. On front feet the empodial appendage bears a long curved sub-apical bristle. Three clavate tenent hairs a little longer than claw to each foot.

Furcula: The dens 3 ¾–4 times as long as mucro. Mucro with strongly recurved apical hook, one outer lamella prominently serrated, the other with a single tooth at the centre and the central lamella plain.

Locality: Awahuri, Palmerston North, amongst debris under kowhai trees and in pastures.

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Type: Slide 3/1004, Dominion Museum Collection.