Olinga fumosa

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Olinga fumosa
Olinga fumosa AMNZ21970.jpg
Male holotype specimen held at Auckland War Memorial Museum
Status NZTCS NE.svg
Nationally Endangered (NZ TCS) [1]
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Trichoptera
Family: Conoesucidae
Genus: Olinga
Species:
O. fumosa
Binomial name
Olinga fumosa
Wise, 1958

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

Contents

Taxonomy

The species was identified by Wise in 1958, based on a specimen collected from Waitati in 1917 by C. E. Clarke. [3] [4] No further specimens of the species were discovered until entomologist Brian H. Patrick discovered further specimens in 1992. [5] [6] Patrick confirmed that the species was distinct from other members of Olinga, based on behavioural differences and the apparent inability to hybridise with O. feredayi . [5]

Description

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

ANTERIOR WING fuscous; scales of longitudinal fold and sub-terminal furrow ochreous, Membranes of both anterior and posterior wings fumose. Spurs 2.2.4. Length of anterior wing, 8 mm (0.31 in). Genitalia♂. Margin of ninth segment with a pair of long dorsal processes with a wart on each side and a pencil of hairs below the wart. Dorsal portion of ninth segment produced downwards posteriorly with upper penis-cover in form of two short processes arising distally below. Penis membranous. Inferior appendages broad at the base and twisted over dorsally towards the apex, each with a long, sinuous, pointed spine arising from its extreme base. These spines pass on each side of the penis and terminate above it between the penis-cover processes. Seventh sternite with a short, broad process. [3]

Males have a wingspan of 18.5 mm (0.73 in), with females larger at 22 mm (0.87 in). [5]

Wise noted that the species was visually similar to O. feredayi , but could be identified by O. fumosa being smaller, darker in colour, differences in genitalia and the seventh sternite. [3]

Distribution and habitat

The species is endemic to New Zealand, [3] found in the vicinity of Dunedin in the Otago Region and South Canterbury on the South Island of New Zealand. [5] [6]

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References

  1. "Olinga fumosa Wise, 1958". New Zealand Threat Classification System . Retrieved 13 August 2024.
  2. 1 2 "Olinga fumosa Wise, 1958". Global Biodiversity Information Facility . Retrieved 13 August 2024.
  3. 1 2 3 4 5 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. Wikidata   Q58676764.
  4. "Olinga fumosa". Auckland War Memorial Museum . Retrieved 12 August 2024.
  5. 1 2 3 4 Patrick, Brian H. (January 1994). "A Reassessment of the Status of Olinga fumosa Wise, 1958 (Trichoptera: Conoesucidae) as a valid species". New Zealand Entomologist. 17 (1): 78–80. doi:10.1080/00779962.1994.9721988. ISSN   0077-9962. Wikidata   Q105740986.
  6. 1 2 Ward, John B.; McKenzie, Jan C. (1997). "Synopsis of the genus Olinga (Trichoptera: Conoesucidae) with a comparative SEM study of the male forewing and androconia and the description of a new species". New Zealand Natural Sciences. 23. doi:10.26021/697. ISSN   0113-7492. Wikidata   Q97665422.