Valid Names Results

Paralecanium planum (Green, 1896) (Coccidae: Paralecanium)

Nomenclatural History

• Lecanium planum Green 1896: 9. Type data: SRI LANKA: Punduloya, on undetermined tree.. Syntypes, female, Type depository: London: The Natural History Museum, England, UK; accepted valid name Notes: Lectotype from Sri Lanka (as Ceylon) in BMNM designated in Hodgson & Williams, 2018.
• Lecanium (Paralecanium) planum; Cockerell & Parrott 1899: 228. subsequent use
• Paralecanium planum (Green, 1896); Fernald 1903: 200. change of combination

Common Names

Ecological Associates

Hosts:

Families: 2 | Genera: 2

Geographic Distribution

Keys

• TanMeXi2024: pp.483-484 ( Adult (F) ) [species of Paralecanium]
• HodgsoWi2018: pp.77-79 ( Adult (F) ) [Paralecanium species]

Remarks

• Systematics: Adult female P. planum are extremely similar to those of P. maritimum, differing most obviously in the form of the marginal ornamentation, that on P. planum consisting of 6–8 strong radial sclerotisations between each pair of marginal setae, whilst those on P. maritimum are narrower and fewer, with only 2–4 between each pair of marginal setae. The species also differ in the presence of large dorsal pores, with those on P. maritimum being 4–7 μm wide whereas they are either absent or extremely small on P. planum, each 2–3 μm wide. Paralecanium machili is also very similar to P. planum but lacks the strong marginal ornamentation, having (at most) shallow sclerotised areas along margin. (Hodgson & Williams, 2018)
• Structure: Unmounted material. ‘Bright castaneous to dark chocolate brown. Flat, broad. Subtriangular; pointed in front.’ ‘On upper surface of leaves of unidentified tree.’ (Green 1896, p. 9 in Hodgson & Williams, 2018) Slide-mounted adult female. Body of all specimens distinctly asymmetrical but otherwise rounded at both ends, broadest across abdomen. Length 2.1–2.6 mm, width 1.7–2.3 mm. (Hodgson & Williams, 2018)
• Economic Importance: Detailed description and illustration in Hodgson & Williams, 2018.
• General Remarks: Detailed description and illustration in Hodgson & Williams, 2018.

Illustrations

Citations