Abstract
A new species of surf flies (Canacidae: Canacinae) is described and illustrated based on four specimens (1 ♂, 3 ♀) collected by Dr. Amnon Freidberg in the Philippines. Some peculiarities of the postabdominal structures, especially those of the male terminalia, suggest a fairly close affinity with two other congeneric species, namely Procanace townesi Wirth, 1951, and P. cogani Mathis, 1988, having a disjointed distribution, Marshall Islands and Seychelles, respectively. It is further suggested that these affinities should arguably be regarded as synapomorphic character states in the groundplan of the genus.
References
Cumming, J.M. & Wood, D.M. (2017) 3. Adult morphology and terminology. In: Kirk-Spriggs, A.H. & Sinclair, B.J. (Eds.), Manual of Afrotropical Diptera. Volume 1. Introductory chapters and keys to Diptera families. Suricata 4. South African National Biodiversity Institute, Pretoria, pp. 89–133.
Hendel, F. (1913) Acalyptrate Musciden (Dipt.) II. In: H. Sauter’s Formosa-Ausbeute (Ed.), Supplementa Entomologica, 2, 77–112.
Mathis, W.N. (1988) Beach flies of the Republic of Seychelles (Diptera: Canacidae). Bulletin of the Washington Biological Society, 8, 22–29.
McAlpine, D.K. (2007) The surge flies (Diptera: Canacidae: Zaleinae) of Australasia and notes on Tethinid‑Canacid morphology and relationships. Records of the Australian Museum, 59 (1), 27‒64. https://doi.org/10.3853/j.0067-1975.59.2007.1468
Munari, L. &. Mathis, W.N (2010) World Catalog of the Family Canacidae (including Tethininae) (Diptera), with keys to the supraspecific taxa. Zootaxa, 2471 (1), 1‒84. https://doi.org/10.11646/zootaxa.2471.1.1
O’Grady, P.M. & Pak, N. (2016) Studies in Hawaiian Diptera III: new distributional records for Canacidae and a new endemic species of Procanace. Biodiversity Data Journal, 4, e5611. https://doi.org/10.3897/BDJ.4.e5611
Wirth, W.W. (1951) A revision of the dipterous family Canaceidae. Occasional Papers of Bernice P. Bishop Museum, 20 (14), 245–275.