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

publication ID	https://doi.org/10.11646/zootaxa.3291.1.1
DOI	https://doi.org/10.5281/zenodo.5251994
persistent identifier	https://treatment.plazi.org/id/3421E53E-FC4E-D73B-2997-2042FC02F9C9
treatment provided by	Felipe (2021-08-24 05:10:29, last updated by Plazi 2023-11-04 15:12:01)
scientific name	Eumyrmococcus
status

Treatment

EUMYRMOCOCCUS Silvestri View in CoL View at ENA

Eumyrmococcus Silvestri, 1926: 271 View in CoL .

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 View FIGURE 16 ) and E. taylori Williams ( Fig. 18 View FIGURE 18 ) ( Williams, 1998), and E. smithii Silvestri ( Kishimoto-Yamada et al., 2005) ( Fig. 17 View FIGURE 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.

References

Kishimoto-Yamada, K., Itioka, T. & Kawai, S. (2005) Biological characterization of the obligate symbiosis between Acropyga sauteri Forel (Hymenoptera: Formicidae) and Eumyrmococcus smithii Silvestri (Hemiptera: Pseudococcidae: Rhizoecinae) on Okinawa Island, southern Japan. Journal of Natural History, 39 (40), 3501 - 3524

Schneider, S. A. & LaPolla, J. S. (2011) Systematics of the mealybug tribe Xenococcini (Hemiptera: Coccoidea: Pseudococcidae), with a discussion of trophobiotic associations with Acropyga Roger ants. Systematic Entomology, 36, 57 - 82.

Silvestri, F. (1926) Descriptions of a new myrmecophilous genus of Coccidae (Hemiptera) from China. Bollettino del Laboratorio di Zoologia Generale e Agraria della R. Scuola Superior Agricultura, Portici, 18, 271 - 275.

Williams, D. J. (1998) Mealybugs of the genera Eumyrmococcus Silvestri and Xenococcus Silvestri associated with the ant genus Acropyga Roger and a review of the subfamily Rhizoecinae (Hemiptera, Coccoidea, Pseudococcidae). Bulletin of the Natural History Museum. Entomology Series (London), 67, 1 - 64.

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).