Olinga fumosa

Olinga fumosa
Male holotype specimen held at Auckland War Memorial Museum

Nationally Endangered (NZ TCS)[1]
Scientific classification Edit this classification
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]

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]

References

  1. ^ "Olinga fumosa Wise, 1958". New Zealand Threat Classification System. Retrieved 13 August 2024.
  2. ^ a b "Olinga fumosa Wise, 1958". Global Biodiversity Information Facility. Retrieved 13 August 2024.
  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. ^ "Olinga fumosa". Auckland War Memorial Museum. Retrieved 12 August 2024.
  5. ^ a b c d 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. ^ a b 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.