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Ecnomina zealandica

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Ecnomina zealandica
Female holotype specimen held at the Auckland War Memorial Museum

Naturally Uncommon (NZ TCS)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Trichoptera
Family: Ecnomidae
Genus: Ecnomina
Species:
E. zealandica
Binomial name
Ecnomina zealandica
Wise, 1958

Ecnomina zealandica is a species of caddisfly belonging to the family Ecnomidae.[2] The species was first described by Keith Arthur John Wise in 1958,[2] and is endemic to New Zealand.[3]

Taxonomy

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The species was identified by Wise in 1958, and is the only known member of the genus Ecnomina in New Zealand.[3] Because of this, observations of Ecnomina larvae in New Zealand are assumed to be Ecnomina zealandica.[4]

Description

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Wise's original text (the type description) reads as follows:

HEAD fuscous; ANTENNAE ochraceous. THORAX fuscous, LEGS ochraceous. ANTERIOR WING light fuscous, fringe darker. VENATION. In anterior wing apical forks 3 and 4 sessile, the median cell extending between them. In posterior wing apical fork 3 about as long as its footstalk. Length of anterior wing, 3.5 mm (0.14 in).[3]

Wise noted that the species could be distinguished from Australian Ecnomina species by the apical forks 3 and 4 of the anterior wing being sessile and not stalked.[3] The larvae are 4.8 mm (0.19 in) in length.[4]

Distribution and habitat

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The species is endemic to New Zealand.[3] While specimens have primarily been collected from the Auckland Region and Waikato Region, the species' range is likely wider.[4][5] It has been described as one of the rarest caddisflies in New Zealand,[6] with no observations of the adults of the species between the 1940s and 2002, when specimens began to be identified in Malaise traps.[7] Drinan et al. (2020) speculate that the species' rarity may point to a behavioural difference in the species, such as being diurnal, or not being attracted to ultraviolet light.[7]

Larvae of E. zealandica have been collected from Fissidens moss from stream banks.[4]

References

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  1. ^ "Ecnomina zealandica Wise, 1958". new Zealand Threat Classification System. Retrieved 13 August 2024.
  2. ^ a b "Ecnomina zealandica". Global Biodiversity Information Facility.
  3. ^ 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.
  4. ^ a b c d Cowley, DR (1978). "Studies on the larvae of New Zealand Trichoptera". New Zealand Journal of Zoology. 5 (4): 639–750. doi:10.1080/03014223.1978.10423816. ISSN 0301-4223.
  5. ^ Smith, Brian J; Collier, Kevin J; Halliday, N Jane (2002). "Composition and flight periodicity of adult caddisflies in New Zealand hill-country catchments of contrasting land use". New Zealand Journal of Marine and Freshwater Research. 36 (4): 863–878. Bibcode:2002NZJMF..36..863S. doi:10.1080/00288330.2002.9517138. ISSN 0028-8330.
  6. ^ Collier, Kevin J. (1992). Freshwater macroinvertebrates of potential conservation interest (PDF) (Report). Wellington: Department of Conservation. ISBN 0-478-01427-9.
  7. ^ a b Tom J. Drinan; Natasha P. J. Grainger; Jon S. Harding; Kevin J. Collier; Brian J. Smith; Russell G. Death; Troy Makan; Jeremy R. Rolfe (7 July 2020). "Analysis of the conservation status of New Zealand freshwater invertebrates: temporal changes, knowledge gaps, impediments, and management implications". New Zealand Journal of Zoology. 48 (1): 81–96. doi:10.1080/03014223.2020.1778044. ISSN 0301-4223. Wikidata Q110743134.