Valid Names ResultsParacoccus hakeae (Williams, 1985) (Pseudococcidae: Paracoccus)
- Phenacoccus hakeae Williams 1985: 270. Type data: AUSTRALIA: New South Wales, Hornsby Heights, on Proteaceae. Holotype, female, by original designation Type depository: Canberra: Australian National Insect Collection, CSIRO Entomology, Australia; accepted valid name Illustr.
- Paracoccus leucadendri Mazzeo & Franco 2009: 63. Type data: PORTUGAL: Zambujeira do Mar, on Leucadendron cv. Rosette L. laureolum x L. elimense ssp. salterii; collected J.C. Franco, 15.xi.2007.. Holotype, female, by original designation Type depository: Catania: Istituto di Entomologia Agraria, Italy; junior synonym (discovered by VonEllWaKi2016, ).
- Paracoccus hakeae (Williams, 1985); Von Ellenrieder, et al. 2016: 552. change of combination
Families: 1 | Genera: 2
- MazzeoFrRu2009: pp.65-68 ( Adult (F) ) [Mealybugs reported from Proteaceae.]
- Willia1985: pp.266 ( Adult (F) ) [Australia]
- Systematics: Comparative analysis of specimens of
and Paracoccus leucandendri showed no character or combination of characters in the specimens from Portugal and the description of Paracoccus leucandendri, which differ consistently from those in the examined specimens of Phenacoccus hakeae from Australia (including a paratype specimen) and California. Von Ellenrieder, et al. 2016 felt that the minor differences between the two original descriptions solely reflect the small number of specimens on which they were based, as demonstrated by the wider range of variability observed in the species when a larger number of specimens was examined. Therefore they considered Paracoccus leucandendri Mazzeo & Franco in Mazzeo, Franco & Russo, 2009 to represent a junior subjective synonym of Phenacoccus hakeae Williams, 1985. In his description, Williams (1985) expressed doubts about the generic placement of this species. Even though it shares the presence of 18 pairs of cerarii, lanceolate setae, dorsal cerarii, and oral rim ducts with other species of Phenacoccus, it lacks the denticle on the claw that characterizes members of that genus, and is also unusual in having antennae each with only eight segments, plus anal lobe bars. Ph. hakeae does not fit the morphological concept of the genus Phenacoccus, and COI barcoding performed in this study corroborates that this species is not a member of Phenacoccus. Even though Ph. hakeae does not group closest to the New World species of Paracoccus included in the Neighbor-Joining analysis, its morphology does agree with the definition of that genus given by Cox (1987) and with that of other species from Australia and New Zealand currently placed under Paracoccus (i.e. Pa. albatus Cox, 1987, which has 18 pairs of cerarii and lanceolate dorsal setae occasionally forming dorsal cerarii). Therefore, von Ellenrieder, et al. transfered Ph. hakeae to Paracoccus, the genus under which its junior synonym Pa. leucadendri was described, as a holding option until an extensive phylogenetic analysis based on both morphological and molecular characters is carried out to establish its correct generic placement.
- General Remarks: Good description and illustration of the adult female given by Williams (1985). Description and illustration of adult female by Mazzeo et al. (2009). Detailed morphological and DNA analysis of the species and junior synonym in von Ellenrieder, et al., 2016.