Pycnocentrodes aeris, also known as the common stony-cased caddisfly,[2] is a species of caddisfly belonging to the family Conoesucidae.[3] The species was first described by Keith Arthur John Wise in 1958,[3] and is endemic to New Zealand.[4]
| Pycnocentrodes aeris | |
|---|---|
| |
| Male holotype specimen held at Auckland War Memorial Museum | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Trichoptera |
| Family: | Conoesucidae |
| Genus: | Pycnocentrodes |
| Species: | P. aeris
|
| Binomial name | |
| Pycnocentrodes aeris Wise, 1958
| |
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Taxonomy
editThe species was identified by Wise in 1958, based on a specimen collected from Kinloch on the northern shores of Lake Wakatipu in 1926 by C. E. Clarke.[4][5]
Description
editWise's original text (the type description) reads as follows:
ANTERIOR WING almost colourless, markings pale testaceous being two elongate transverse dots near base and two parallel transverse lines arising where Sc and R1 meet the costa and finishing at two-thirds where they join abruptly and continue as a single line almost to the dorsum just before the tornus. POSTERIOR WING almost colourless.
WING VENATION. Differs mainly from P. aureola (McLachlan) in the posterior wing where R2 and R3 arise separately, as in P. chiltoni
Tillyard, and from P. chiltoni in the anterior wing where apical fork 3 is fully formed, as in P. aureola. Length of anterior wing, 7–10 mm (0.28–0.39 in). Genitalia♂. Very close to P. aureola except that the spurs of the penis arise from its apex which is truncate and slightly bifid above. The spurs are moderately long, straight, and lie along each side of the penis..[4]
Wise noted that the species could be differentiated from other Pycnocentrodes due to the colour and pattern of its anterior wings.[4]
Specimens have an average forewing length of 8 mm (0.31 in) and hind wing length of 5.6 mm (0.22 in).[6]
Distribution and habitat
editThe species is endemic to New Zealand,[4] and is the most widespread Pycnocentrodes in the country, found across both the North Island and South Island.[6]
Behaviour
editP. aeris larvae form cases by binding together sand particles and silk, and occasionally repair damaged cases.[7]
References
edit- ^ "Pycnocentrodes aeris Wise, 1958". New Zealand Threat Classification System. Retrieved 14 August 2024.
- ^ "Common Stony-cased Caddisfly". iNaturalist. Retrieved 14 August 2024.
- ^ a b "Pycnocentrodes aeris Wise, 1958". Global Biodiversity Information Facility. Retrieved 14 August 2024.
- ^ a b c d e Wise, K. A. J. (1958). "Trichoptera of New Zealand: I. A Catalogue of the Auckland Museum Collections with Descriptions of New Genera and New Species". Records of the Auckland Institute and Museum. 5: 49–63. ISSN 0067-0464. JSTOR 42906091. OCLC 9987167351. Wikidata Q58676764.
- ^ "Pycnocentrodes aeris". Auckland War Memorial Museum. Retrieved 14 August 2024.
- ^ a b Cowley, D. R. (March 1976). "Additions and amendments to the New Zealand Trichoptera". New Zealand Journal of Zoology. 3 (1): 21–26. doi:10.1080/03014223.1976.9517895. ISSN 0301-4223. Wikidata Q104025356.
- ^ Prestidge, RA (1977). "Case-building behaviour of Pycnocentrodes aeris (Trichoptera: Sericostomatidae)". New Zealand Entomologist. 6 (3): 296–301. doi:10.1080/00779962.1977.9722269. ISSN 0077-9962.
Further reading
edit- Holomuzki, Joseph R; Biggs, Barry JF (2006). "Food limitation affects algivory and grazer performance for New Zealand stream macroinvertebrates". Advances in Algal Biology: A Commemoration of the Work of Rex Lowe: 83–94. doi:10.1007/1-4020-5070-4_6. ISBN 978-1-4020-4782-4.