Quick Genera Links – those not linked we have not documented.
Arachnomyia Austrosciapus Chrysotimus Chrysotus Corindia Cymatopus Diaphorus Heteropsilopus Hydrophorus Liparomyia Medetera Microphor Narrabeenia Negrobovia Nothorhaphium Parentia Scorpiurus Sympycnus Syntormon Thinophilus Thrypticus [Pending ID – Sciapodinae] [Pending ID – Sympycninae] [Pending ID – Dolichopodidae]
Diaphorines do not have the mesonotum distinctly depressed before the scutellum. The head is typically rounded when viewed in front and with antennae inserted around mid height of eyes. Mid and hind femora lack distinct subapical anterior setae and acrostichal bristles are biserial for their length. Wing crossvein m-cu is usually not close to the wing margin, being shorter than the last section of CuA1 after it. Many males are holoptic above the antennae. (Click here to compare some of these features with Chrysotimus (Sympycninae).)
Tasmanian hydrophorines have the acrostichal bristles uniserial (Hydrophorus) or absent (Cymatopus and Thinophilus). The forelegs are usually raptorial (Hydrophorus and Cymatopus), and the mid and hind femora and tibiae are bristly. They never have the mesonotum with a large flattened or depressed area before the scutellum. These dolichopodids are found around or on water, with Cymatopus and Thinophilus being largely marine flies while Hydrophorus can be found both inland and around the shore. Cymatopus are notable for being black with dusting, and no metallic colouring.
These are generally large dolichopodids with extra long legs and long tapering abdomen. Neurogoninae share with Medeterinae and Chrysotimus (Sympycninae) a large depressed area on the mesonotum before the scutellum, however both the latter groups are much smaller and possess a shorter abdomen.
Dolichopodids in this subfamily can be recognised by their head vertex being noticeably excavated between the eyes and wing vein M branched, or the indication of being branched by a distinct upper bend in this vein (vein M1, where M2 has become lost below it). The former feature is usually not present, or more weakly formed, in the other subfamilies here while the latter feature is found in some genera of Dolichopodinae.
Sympycninae usually have the mid and hind femora with distinct subapical anterior setae, though there are forms without. The antennae are typically inserted high on the head. Acrostichal bristles can be biserial, uniserial, or absent. Wing veins R4+5 and M are subparallel and the eyes are separated in both sexes above the antennae, in some males they are approximated below the antennae. Several Tasmanian species have the third antennae segment elongated in the males. (Click here to see some of these features on a Chrysotimus species.)
Bickel, D. J. 1994. The Australian Sciapodinae (Diptera: Dolichpodidae), with a review of the Oriental and Australasian faunas, and a world conspectus of the subfamily. Records of the Australian Museum Supplement 21: 1-394.
Bickel, D. J. 1999. Australian Sympycninae II: Syntormon Loew and Nothorhaphium, gen. nov., with a treatment of the western Pacific fauna, and notes on the subfamily Rhaphiinae and Dactylonotus Parent. Invertebrate Taxonomy 13: 179-206.
Bickel, D. J. & Dyte, C. E. 2012. Family Dolichopodidae. In: Evenhuis, NL (ed.), Catalog of the Diptera of the Australasian and Oceanian Regions. (online version). Available at: http://hbs.bishopmuseum.org/aocat/doli.html. Last accessed: 21 March 2012.
White, A. 1916. The Diptera-Brachycera of Tasmania. Part III. Families Asilidae, Bombylidae, Empidae, Dolichopodidae, & Phoridae. Papers and Proceedings of the Royal Society of Tasmania 1916: 148-266.