- Coriophagus casui Cowley, 1985 Wikispecies link
- Coriophagus casui was the second of two species of Strepsiptera so far described from New Zealand. The species was based on a unique male specimen, collected in a light trap near the Waitakere Ranges, Auckland. Elsewhere in the world, members of this genus are parasites of Heteroptera. The only other described New Zealand strepsipteran species, Elenchus maorianus is a parasite of delphacids.
- unfortunately, Coriophagus casui almost certainly belongs in fact to the genus Halictophagus, parasites of Cicadellidae
- Unassociated males of these two genera can be very difficult to tell apart, and Don Cowley had no previous experience in Strepsiptera taxonomy
- My investigations have revealed no evidence for strepsipteran parasitism of Heteroptera in New Zealand, but plenty of evidence for strepsipteran parasitism of cicadellids (e.g. see Prestidge, 1989: 57), though male strepsipterans are extremely hard to find
- I have seen several cicadellids parasitised by females of what are clearly Halictophagus (see fig. 1), some of them from within just a few kilometres of the type locality of Coriophagus casui
- Cowley (1985: 353) noted a case of strepsipteran parasitism of cicadellids, based on a female from the southern part of the South Island, but did not associate it with his male because 'females of the Coriophaginae, however, parasitise Heteroptera'
- Therefore, the presence in New Zealand of Coriophagus/strepsipteran parasites of Heteroptera must be viewed with great suspicion.
- Cowley, D.R. 1985(1984): Coriophagus casui sp. n. (Halictophagidae: Coriophaginae): a male strepsipteran from Auckland, New Zealand. New Zealand journal of zoology, 11(4): 351-353. Google books
- Prestidge, R.A. 1989: Preliminary observations on the grassland leafhopper fauna of the Central North Volcanic Plateau. New Zealand entomologist, 12: 54–57.
Stephen Thorpe 03:20, 4 March 2011 (CET)