Stictococcus

Williams, Douglas J., Matile-Ferrero, Danièle & Miller, Douglass R., 2010, A study of some species of the genus Stictococcus Cockerell (Hemiptera: Sternorrhyncha: Coccoidea: Stictococcidae), and a discussion on Stictococcus vayssierei Richard, a species injurious to cassava in Equatorial Africa with a description of a new species from Nigeria, Zootaxa 2527, pp. 1-27 : 11

Key to adult females of Stictococcus species (except S. tuberculatus )

1 Marginal dorsal pores about twice size of other dorsal pores...................................................................................... 2

- All dorsal pores about same size................................................................................. sjostedti Cockerell & Cockerell

2 Dorsum without flower-shaped setae ......................................................................................................................... 3

- Dorsum with flower-shaped setae.............................................................................................. formicarius Newstead

3 If stout barbed setae present on dorsum, they are distributed in longitudinal rows ................................................... 4

- Dorsum with numerous stout barbed setae evenly distributed over surface........................................... pujoli Richard

4 Stout, dorsal barbed setae present in submarginal and submedial series..................................................................... 5

- Stout, dorsal barbed setae absent; barbed setae restricted to margin ................................................ vayssierei Richard

5 Ventral marginal setae mostly elongate and slender, tapering only gradually, about 45–50 µm long. Dorsal marginal flagellate setae absent.................................................................... subterreus sp. n. Williams, Matile-Ferrero & Miller

- Ventral marginal setae mostly stout and each multilobed distally, each seta about 35 µm long. Dorsal marginal flag- ellate setae present ..................................................................................................................... intermedius Newstead