Valid Names Results

Montanococcus petrobius Henderson, 2007 (Eriococcidae: Montanococcus)

Montanococcus petrobius Henderson 2007a: 21-25. Type data: NEW ZEALAND, CO: Rock & Pillar Range, Rock & Pillar Reserve, 2 km NE of Summit Rock, 1200m. on tussock core of Chionochloa rigida, 2/25/2002,. Holotype, female and first instar, Type depository: Auckland: New Zealand Arthropod Collection, Landcare Research, New Zealand; accepted valid name Illustr.

Families: 1 | Genera: 1

Countries: 1

Systematics: Diagnostic features of the adult female of M. petrobius are (i) ventral disc pores 7-locular, restricted to a line between posterior spirable and anal lobes; (ii) each anal lobe with a deep lateral cleft between setae LD1 and LD2 on inner margin, LD2 lobule extending medially; (iii) seta LD2 nearly in line with apical seta; (iv) small to moderate numbers of translucent pores present on metathoracic coxaand femur, and (v) anal ring setae sword-shaped, moderately wide.
Structure: Body elongate-oval, 0.67 m wide, 1.1 m long; derm membranous except for anal lobes. eyespots present on margin at about level of antennal scape. Antennae 6-segmented Labium with 4 pairs of setae discernable. Anal lobes very wide at base, thick, with both lobules on inner margins and apex most strongly sclerotised. Dorsum setae spinose, distributed in rows of 4 long setae with 7-10 shorter to very short setae. Second instar nymphs lack macrotubular ducts and the translucent pores on the metathoracic leg that are present in the adult female. They have a ventral disc pore band extending from posterior spirable to anal lobes.
Biology: This species inhabits mountain wetlands in the subalpine to penalpine altitudinal belts.
General Remarks: Good descriptions and illustrations of adult female as well as 1st and 2nd instar nymphs in Henderson (2007a).