Pellucidomyia, Macfie, 1939

Borkent, Art, 2024, The Phylogeny of the Genera of Biting Midges (Diptera: Ceratopogonidae) of the World, Zootaxa 5438 (1), pp. 1-274 : 233

Pellucidomyia :

- In female, the two ridges of the frons between the scapes diverge ventrally as particularly long ridges (shorter and less developed in all other Ceratopogonidae ).

- Female mandibular arm originating posterior to posteroventral margin of the eye. This feature has also evolved in Echinohelea and in a group of Sphaeromiini (see character 38).

- Prealar setae slender, similar to more anterior setae, and with only 1–2 present. In all other Ceratopogonidae at least some of the prealar setae are notably longer and stouter, although those in Heteromyia are only slightly larger than those placed more anteriorly. These setae were called marginal setae by Tokunaga (1937) and for Culicidae are known as supraalar (perhaps also including antealar setae) ( Harbach & Knight 1980). Here I follow Saether (1980) and call them prealar. They have not been named in Dixidae , Corethrellidae or Chaoboridae and are not distinguishable in Simuliidae and Thaumaleidae where the scutum is more or less evenly covered by scattered setae.

- Hind tibial comb with two extremely elongate spines, along with 2–3 normally-sized spines. The elongate spines are unique in the Culicomorpha.

- Female hind tarsomere shorter than tarsomere 2 (barely, with a ratio of about 0.96).