Skusella Freeman, 1961

Cranston, Peter S. & Tang, Hongqu, 2018, Skusella Freeman (Diptera: Chironomidae): new species, immature stages from Africa, Asia and Australia, and expanded distributions, Zootaxa 4450 (1), pp. 41-65 : 46

Key to species and known life stages of adult female Skusella Freeman

1 Wing unpatterned ( Fig. 1 A ) . Seminal ducts gently curved ( Fig. 3 A ) to near straight. Australia / Asia.... S. subvittata (Skuse)

- Wing patterned ( Fig. 1B ). Seminal ducts sinuous ( Fig. 3D ) or looped ( Fig. 3E ). Afrotropical.......................... 2

2 Legs pale. Squama bare. Seminal ducts sinuous ( Fig. 3D )..................................... S. pallidipes Freeman Distal femur + proximal tibia dark. Squama setose. Seminal ducts with loop ( Fig. 3E )............... S. freemani Harrison

Figures

FIGURE 1. Adult Skusella. A, Wing, male S. subvittata; B, Wing, female S. pallidipes (from Freeman 1958); C, Lateral thorax S. subvittata; D, Fore tibial apex; E, Hind tibial combs and spurs S. subvittata; F. Hypopygium S. subvittata (schematic, L side of figure dorsal view, R side ventral/internal); G. Hypopygium (L side dorsal) S. pallidipes; H–I Superior volsella: H, S. subvittata; I, S. pallidipes; J, Median volsella S. pallidipes.

FIGURE 3. Female Skusella, genitalia. A–C, S. subvittata (reared, Wildman R.): A, Ventral (R side of body only); B, detail including apodemes and gonapophysis VIII lobes; C, detail of labia, vagina and opening of spermathecal ducts. D–E Seminal capsule and spermathecal duct: D, S. pallidipes; E, S. freemani.