Silba perplexa (Walker)

Macgowan, Iain, 2021, The Lonchaeidae of Vanuatu (Diptera: Schizophora), Zootaxa 4926 (3), pp. 342-362 : 358

Silba perplexa (Walker) ( Fig. 40 )

Silba perplexa (Walker, 1861: 161) . HT ♀ BMNH, Specimen id. 1458441 .

Syn. Silba filifera ( Bezzi, 1913)

Fully described and illustrated by McAlpine (1956; p538, Figs. 36, 37 & 45) under its synonym Silba filifera .

Remarks. One of the most widely distributed Silba species in the Oceania-Australasia region.

Additional records: VANUATU: Ambrym Island, 0-100m, xii.1984, N. L. H. Krauss, 1♂. Efate, beach, 23.ii.1964, R. Straatman, 1♂; Port-Vila, 0-100m, iii.1980, N. L. H. Krauss, 1♂; Vila, 0-100m, ii.1970, N. L. H. Krauss, 2♂; Vila, 0-100m, I.1976, N. L. H. Krauss, 1♂; Vila, 0-200m, ii.1978, N. L. H. Krauss, 1♂; Vila, 0- 100m, xi.1978, N. L. H. Krauss, 1♂; Vila, 0-100m, xii.1984, N. L. H. Krauss, 1♂. Epi, Vaemali, 100-150m, 6- 10.viii.1967, J. & M. Sedlacek, 13♂; Vaemali, Malaise Trap, 8.viii.1967, J. & M. Sedlacek, 1♂; Vaemali, 80-150m, 11-18.viii.1967, J. & M. Sedlacek, 10♂. Erromango, Dillons bay, 0-100m, i.1984, N. L. H. Krauss, 1♂; Numpon, 250m, 28.ii.1964, R. Straatman, 1♂. Espiritu Santo, Luganville, 0-100m, xii 1984, N. L. H. Krauss, 1♂. Pentecost Island, Batnavni, 0-100m 3.ix.1979, W. C. Gagne & G. M. Nishida, 1♂. Tanna, Lenakel. 0-150m, iii.1970, N. L. H. Krauss, 1♂; Port Resolution, 0-100m, 6.iii.1970, N. L. H. Krauss, 1♂; Yerou, Malaise Trap, 8.viii.1967, J. & M. Sedlacek, 1♂. (all BPBM)

Figures

FIGURE 40. Silba perplexa (Walker, 1861). Epandrium and associated structures lateral view.

FIGURES 36-39. Silba hebridensis sp. nov. 36. Epandrium and associated structures, ventral view. 37. Surstylus, internal view. 38. Phallus and parameres lateral view. 39. Phallus, parameres and postgonites, ventral view.