Stigmacoccus

Hodgson, Chris, Gamper, Heather, Bogo, Amauri & Watson, Gillian, 2007, A taxonomic review of the Margarodoid genus Stigmacoccus Hempel (Hemiptera: Sternorrhyncha: Coccoidea: Stigmacoccidae), with some details on their biology, Zootaxa 1507, pp. 1-55 : 39

Key for the separation of males of the three Stigmacoccus species seen in this study

(Note: because the only available male of S. paranaensis had been removed from the pupal case and its limbs were not fully expanded, these differences may need to be treated with caution).

1. Penial sheath about 1.5 times (or less) longer than broad; hairs quite abundant on venter of abdomen; prosternal setae present in a large group plus lp on either side of prosternum .......................... S. garmilleri

- Penial sheath at least 2.5 times longer than broad; hairs absent on venter of abdomen; prosternal setae very few or absent on either side of prosternum, without lp ............................................................................... 2

2. Post-tergites represented by long diagonal sclerite; postoccipital ridge narrow, not broadening laterally; scutellum without a membranous area at anterior end ..................................................................... S. asper

- Post-tergites not represented by a long diagonal sclerite but by two mildly sclerotised triangular areas; postoccipital ridge broad, widening laterally; scutellum with a membranous area near anterior margin of scutellum ................................................................................................................................. S. paranaensis