Valid Names Results

Glabracoccus pomaderris Gullan, 2021 (Pseudococcidae: Glabracoccus)

Nomenclatural History

• Glabracoccus pomaderris Gullan 2021: 6. Type data: AUSTRALIA, New South Wales, Oallen, 1760 Oallen Ford Road, ‘NeverDie’, (-35.129104, 150.013517) , 1/31/2018, by P.J. Gullan,. Holotype, female and first instar, by original designation Type depository: Canberra: Australian National Insect Collection, CSIRO Entomology, Australia; accepted valid name Notes: Paratypes: 11 adult females, same data as holotype, except collected 3/28/2018 (9 in ANIC including voucher LGC04087, 2 in QDPC) Illustr.

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

Remarks

• Systematics: zoobank.org:act:2F910094-5BDB-46DE-BE21-C1B03C7F1A4D

  Adult females from the two populations sampled were very similar in morphology, with only one leg character varying between the two localities. Most adult females from the collections at NeverDie had a shorter tibia than the females from the ANBG, resulting in a smaller ratio of lengths of hind tibia to hind tarsus (2.1–2.5) compared with the ANBG females (2.4–3.1).

  Features of the adult females of Glabracoccus considered to be of taxonomic significance are: (1) the conical spine-like setae, especially the larger dorsal and marginal ones, each of which produces a long filament of glassy wax; these filaments resemble the hairs on the underside of the leaves of the host plants; some eriococcids produce similar filaments from enlarged dorsal setae but in the latter taxa there are microducts at the base of each secretory seta; (2) the absence of multilocular pores, particularly in combination with extremely few tubular ducts, both of which produce secretions that typically coat the body and eggs in wax; (3) the almost circular shape of the rim of each trilocular pore and the less-swirled appearance of the three loculi compared with typical mealybugs; (4) the unusually elongate labium; (5) possession of two pairs of prominent ostioles; and (6) 7-segmented antennae. The adult female of G. pomaderris shares a few features with the adult females of the Australian genus Ventrispina Williams, which are known only from surface litter and soil on Mt Kosciuszko in NSW. (Gullan, 2021)

• Structure: In life body pale cream, almost devoid of powdery white wax but with glassy filaments (each 0.1–0.6 mm long) around body margins and submargins and a few usually shorter filaments (<0.2 mm) more medially on dorsum. On microscope slides body ovoid, length 1.4–2.2 mm, width 0.8–1.6 mm; segmentation distinct; derm membranous except for light sclerotisation on anal lobes and around bases of larger conical spine-like setae on abdomen. Eyespots each 45–60 μm wide. Antennae each 310–410 μm long, with 7 segments. (Gullan, 2021) First-instar nymph body pale cream to white with short glassy filaments around margins and on dorsum, longest on posterior abdomen; eyespots black. On microscope slides: derm membranous except for small area around setae at apex of each anal lobe and around base of pair of medial dorsal setae on abdominal segment VII.
• General Remarks: Detailed description of adult female and first instar nymph, photograph and illustration in Gullan, 2021.

Illustrations

Citations