Valid Names Results

Madarococcus rotundus (Hoy, 1962) (Eriococcidae: Madarococcus)

Eriococcus rotundus Hoy 1962: 142. Type data: NEW ZEALAND: South Island, Nelson, Stanley Brook, on Nothofagus solandri var. solandri, 04/03/1960, by J.M. Hoy. Holotype, female, by original designation Type depository: Auckland: New Zealand Arthropod Collection, Landcare Research, New Zealand; accepted valid name Illustr.
Acanthococcus rotundus (Hoy, 1962); Miller & Gimpel 1996: 603. change of combination
Madarococcus rotundus (Hoy, 1962); Hardy, Beardsley & Gullan 2008: 369-373, 399. change of combination

Families: 1 | Genera: 1

Countries: 1

HardyGuHo2008: pp.375-376 ( Adult (F) ) [Key to species of Madarococcus based on adult females]
Hoy1962: pp.31 ( Adult (F) ) [New Zealand species of Eriococcidae] Key as: Eriococcus rotundus

Systematics: Slide-mounted adult female with: enlarged setae conical, sides slightly concave, apices slightly rounded, marginal setae and 2 or 3 setae in medial area of thorax conspicuously larger than other setae on dorsum, 2 to 4 lateral setae on margin of each abdominal segment, bases of marginal setae often with associated microtubular ducts; suranal setae spatulate; microtubular ducts elongate, without sclerotized area (Hoy, 1962). The adult females of M. rotundus most closely resemble those of M. latilobatus. Hoy (1962a) separated them by counting enlarged dorsal setae: 10-20 on the head and thorax of M. latilobatus as opposed to four or fewer located on the thorax of M. rotundus. He acknowledges the plasticity of the feature in M. rotundus; in many specimens the enlarged setae are completely absent. Perhaps M. latilobatus and M. rotundus are the same species. (Hardy, et al. 2008)
Structure: Sac of female is brown and loosely felted (Hoy, 1962).
Biology: Adult females of M. rotundus frequently occur on the underside of leaves and have a distinctive test pattern composed of curled wax strands. (Hardy, et al., 2008)
General Remarks: Most detailed description and illustration by Hoy (1962).