Valid Names Results

Paratachardina pseudolobata Kondo & Gullan, 2007 (Tachardiidae (= Kerriidae): Paratachardina)

Nomenclatural History

• Paratachardina lobata; Pemberton 2003a: 373-377. misidentification
• Paratachardina pseudolobata Kondo & Gullan 2007: 20. Type data: U.S.A.: Florida, Broward county, Davie, University of Florida Fort Lauderdale Research Education Center, on leaf of Mangifera indica; collected T. Kondo, 20.xi.2002.. Holotype, female, Type depository: Davis: The Bohart Museum of Entomology, University of California, California, USA; accepted valid name Illustr.
• Paratachrdina pseudolobata; Varshney 2020: 52. misspelling of genus name

Common Names

• Lobate lac scale Malump2022
• Escama de laca lobada Malump2022

Ecological Associates

Hosts:

Families: 67 | Genera: 233

Foes:

Families: 1 | Genera: 1

Associates:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• KondoGu2011: pp.347-350 ( Adult (F) ) [Key Based on Adult Females to Separate Species of the Family Kerriidae Known to Occur in the New World]
• KondoGuPe2011: pp.142-143 ( Adult (F) ) [Species of Paratachardina]
• KondoGu2007: pp.7-8 ( Adult (F) ) [Species of Paratachardina]

Remarks

• Systematics: Paratachardina pseudolobata can be diagnosed by the following features: (i) ventral duct clusters totalling 4 pairs, with clusters of most anterior pair well separated (Fig. 1N) and each usually with 20-45 (41-86 combined) microducts, and (ii) test of adult female X-letter or bowtie-shaped with each of the four lobes of the test rather smooth, purplish red to dark reddish brown, often black due to sooty mould. (Kondo & Gullan, 2007) This species was known mistakenly as P. lobata in all literature prior to Kondo and Gullan, 2007m which discusses its biology and pest status. In their online identification key for scale insects, Miller et al. (2007) http://www.sel.barc.gov/Scaleakeys/ScaleInsectsHome/ScaleInsects?others.htm) describe and illustrate the adult female of P. pseudolobata under the name "Paratachardina sp. nr. lobata", and also provide diagnostic notes. (Kondo & Gullam, 2007)
• Structure: Lac test purplish red to dark reddish brown, often appearing brown or black due to sooty mould; tests of adjacent females often fused if crowded; covering infested twigs and branches of host. Test with 4 marginal lobes, each lobe rounded: anterior lobes (al) smaller than posterior lobes (pl); first-instar test incorporated into adult test on mid-dorsum, with a circular opening on an elevated area just posterior to first-instar test. Dimensions of adult female test: 1.2-2.0 mm long, 0.7-1.5 mm wide at anterior lobes, 1.0-2.0 mm wide at posterior lobes, 1.0-1.5 mm high. Lac texture very hard, brittle, shiny. (Kondo & Gullan, 2007) Males have not been observed in Florida or Hawaii. The first instar (crawler) is deep red, about 0.4 mm long, and has an elongate-oval shape (Howard and Pemberton 2003). By second instar, they develop into their characteristic lobate shape. A final molt produces the adult female. Entire developmental time takes 4–5 months from crawler to adult (Howard and Pemberton 2003). Bhandari & Cheng's study (2018) on weeping banyan trees showed imidacloprid delivered via trunk injection was curatively highly effective against lobate lac scale.
• Biology: Paratachardina pseudolobata forms dense infestations on bark, usually on twigs and smaller branches of less than 2 cm diameter. (Malumphy, 2022)
• Economic Importance: Pemberton (2003, 2003a) recorded this species as a pest in southern Florida, USA, where it was found infesting a total of 67 species of woody plants belonging to 30 plant families. Howard et al. (2006) recorded this species from 307 plant species, nearly all of which are dicotyledonous trees.
• General Remarks: Description and illustration of adult female, second-instar nymph female and first-instar nymph female by Kondo & Gullan (2007).

Illustrations

Citations