Hadramphus pittospori
| Hadramphus pittospori | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Suborder: | Polyphaga |
| Infraorder: | Cucujiformia |
| Family: | Curculionidae |
| Genus: | Hadramphus |
| Species: | H. pittospori
|
| Binomial name | |
| Hadramphus pittospori Kuschel, 1987
| |
Hadramphus pittospori is a species of large molytine weevil in the family Curculionidae.[1] It is endemic to the Poor Knights Islands of New Zealand [1][2]. Under the New Zealand Threat Classification System, this species is listed as "Naturally Uncommon" with the qualifiers of "Island Endemic" and "Range Restricted".[3]
Taxonomy
This species was first described by Guillermo Kuschel as Karocolens pittospori in 1987.[4][2] In 1999 it was redescribed by Robin Charles Craw and moved to genus Hadramphus.[5]
The holotype specimen was found in the Poor Knights Islands and is stored in the New Zealand Arthropod Collection.[2][5]
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Description
Both larvae and adults of Hadramphus pittospori are flightless and brown in colour.[1][6] Adults are unusually long-lived for weevils and can survive for over 3 years when raised in captivity.[2][6] They can reach lengths of 16.5-19.7 mm.[5] The larvae can get up to 22 mm long.[1] Larvae development consists of six instars, unlike most weevil species which have only three.[6]
Behaviour
The host plant of this species is karo (Pittosporum crassifolium).[2][5] These weevils are likely nocturnal, based on field observations.[6] The adults are active at night and are notably slow-moving in dark and cool environments, but appear to actively avoid direct hot sunlight.[6]
Distribution
Hadramphus pittospori is only found in the Poor Knights Islands of New Zealand.[2][5]
References
- ^ a b c d May, Brenda M. (1987-01-01). "Immature stages of Curculionidae (Coleoptera): the larva and pupa of Karocolens pittospori (Molytinae)". New Zealand Entomologist. 9 (1): 29–34. doi:10.1080/00779962.1987.9722489. ISSN 0077-9962.
- ^ a b c d e f Kuschel, G. (1987-01-01). "The subfamily Molytinae (Coleoptera: Curculionidae): General notes and descriptions of new taxa from New Zealand and Chile". New Zealand Entomologist. 9 (1): 11–29. doi:10.1080/00779962.1987.9722488. ISSN 0077-9962.
- ^ Leschen, R. A.B.; Marris, J. W.M.; Emberson, R. M.; Nunn, J.; Hitchmough, R. A.; Stringer, I. A.N. (2012-07-01). "The conservation status of New Zealand Coleoptera". New Zealand Entomologist. 35 (2): 91–98. doi:10.1080/00779962.2012.686311. ISSN 0077-9962.
- ^ "NZOR Name Details - Hadramphus pittospori (Kuschel, 1987)". www.nzor.org.nz. Retrieved 2021-08-04.
- ^ a b c d e Craw, Robin C. (1999). Molytini: Insecta: Coleoptera: Curculionidae: Molytinae. Fauna of New Zealand. Lincoln: Manaaki Whenua Press. ISBN 978-0-478-09325-4.
- ^ a b c d e Bennett, Beverley G. (1987-01-01). "Observations on rearing Karocolens pittospori (Coleoptera: Curculionidae: Molytinae)". New Zealand Entomologist. 9 (1): 34–37. doi:10.1080/00779962.1987.9722490. ISSN 0077-9962.