Opifex (fly) explained

Opifex is a genus of mosquito containing the species Opifex chathamicus and Opifex fuscus.^[1]

Opifex fuscus have an unusual mating system. In contrast with most mosquito species, which mate in flight, mating in Opifex occurs on the surface of salt-water pools.^[2]

Opifex fuscus males will grab female pupae from under the surface of the water. Females begin reproducing as soon as they come out of their chrysalis.^[3]

Notes and References

1. Cheng, L. (2010). Opifex Hutton, 1902. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=411338 on 2017-03-16
2. Lambert, David M, and Elisabeth Slooten. “Evolutionary Studies of the New Zealand Coastal Mosquito Opifex Fuscus (Hutton) I. Mating Behaviour.” Behaviour, vol. 84, no. 1-2, 1983, pp. 157–171., doi:10.1163/156853983X00336.
3. Lambert, David M, and Elisabeth Slooten. “Evolutionary Studies of the New Zealand Coastal Mosquito Opifex Fuscus (Hutton) I. Mating Behaviour.” Beh, vol. 84, no. 1-2, 1983, pp. 157–171., doi.org/10.1163/156853983X00336.