Eumyrmococcus, Silvestri

Hodgson, Chris, 2012, Comparison of the morphology of the adult males of the rhizoecine, phenacoccine and pseudococcine mealybugs (Hemiptera: Sternorrhyncha: Coccoidea), with the recognition of the family Rhizoecidae Williams 3291, Zootaxa 3291 (1), pp. 1-79 : 52

EUMYRMOCOCCUS Silvestri

Eumyrmococcus Silvestri, 1926: 271 .

Type species: Eumyrmococcus smithii Silvestri , by original designation.

Introduction. At present, 20 species of Eumyrmococcus are known ( Schneider & LaPolla, 2011), divided into two species-groups, the E. scorpioides species-group with three species and the E. smithii species-group with 17 species. Adult males are only known for the latter species-group: E. sarawakensis Williams ( Fig. 16 ) and E. taylori Williams ( Fig. 18 ) ( Williams, 1998), and E. smithii Silvestri ( Kishimoto-Yamada et al., 2005) ( Fig. 17 ). These can be separated using the key below. A generic diagnosis and key to the identification of the adult females of all 20 species can be found in Schnieder and LaPolla (2011).

For a morphological diagnosis of the males of this genus, see key above.

Figures

FIGURE 16. Eumyrmococcus sarawakensis Williams. Adult male. Where J = 2 dorsal views of posterior end of abdomen, L = 2 ventral views of posterior end of abdomen, and V = minute setae. For other labels, see under Materials and methods: conventions. (Modified after Williams, 1998)

FIGURE 17. Eumyrmococcus smithii Silvestri. Adult male. Where L = ventral view of penial sheath, and N = side view of posterior end of abdomen. For other labels, see under Materials and methods: conventions. (Modified after Kishimoto-Yamada et al., 2005)

FIGURE 18. Eumyrmococcus taylori Williams. Adult male. Where J = dorsal view of posterior end of abdomen; L = ventral view of penial sheath, and V = minute capitate setae. For other labels, see under Materials and methods: conventions. (Modified after Williams, 1998).