Valid Names Results
Trichomytilus formosus (Maskell, 1894) (Diaspididae: Trichomytilus)Nomenclatural History
- Mytilaspis formosa Maskell 1894b: 68-69. Type data: AUSTRALIA: South Australia, Renmark, on Eucalyptus orbifolia and E. corynocalyx. Syntypes, female, Type depository: Auckland: New Zealand Arthropod Collection, Landcare Research, New Zealand; Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name Notes: Lectotype designated in Wei, Normark & Normark (2026). "1 adult female: “Australia, on Eucalyptus sp., probably E. orbifolia, as the leaves are short, almost circular, and whitish-yellow." Barcode label: NZAC02054131 (ANIC). Paralectotypes: 4 adult females, same slide as lectotype (ANIC); 2 adult females in extremely poor condition on 1 slide, same data as lectotype, NZAC01054132 (NZAC); 3 adult females on 1 slide, same data as lectotype, NZAC01054133 (NZAC); 4 adult females on 1 slide, same data as lectotype (USNM). Illustr.
- Lepidosaphes formosa (Maskell, 1894); Fernald 1903b: 309. change of combination
- Trichomytilus formosus (Maskell, 1894); Leonardi 1904: 23. change of combination
- Trichomytilus formosus Wei, Normark, & Normark 2026. Type data: AUSTRALIA: on Eucalyptus sp., coll. W.M. Maskell, 1893. Lectotype, female, by present designation Type depository: Canberra: Australian National Insect Collection, CSIRO Entomology, Australia; subsequent description Notes: Paralectotypes: 3 adult females on 1 slide, same data as lectotype (NZAC) Illustr.
Common Names
Ecological Associates
Hosts:
Families: 1 | Genera: 1
- Myrtaceae
- Eucalyptus | Borchs1966
- Eucalyptus cladocalyx | Maskel1894b | (= Eucalyptus corynocalyx)
- Eucalyptus orbifolia | Maskel1894b
Geographic Distribution
Countries: 1
- Australia
- New South Wales | Frogga1914 WeiNoNo2026
- South Australia | Maskel1894b WeiNoNo2026
- Western Australia | GiraldWiDo2024
Keys
- WeiNoNo2026: pp.30-36 ( Adult (F) ) [species of Fioriniina in Australia]
- Cocker1899f: pp.14 ( Adult (F) ) [Australian species of Mytilaspis] Key as: Mytilaspis formosa
Remarks
- Structure: Female scale snow white, first exuviae small, dull yellow, 2nd much larger and dark reddish yellow. Adult female dark orange, elongate, with 2 median lobes, with two spines between them and a smaller lobe on either side (Froggatt, 1914). Slide-mounted adult female 600–1100 μm long, 410–680 μm wide. Body outline pyriform, body margin indented between thoracic and prepygidial abdominal segments, pygidium roundish along free margin, derm membranous except for sclerotized areas of pygidium (Wei et al., 2026).
- General Remarks: Detailed descriptions and illustrations by Maskell (1894b) and Morrison & Morrison (1922). Redescription and designation of lectotype by Wei, et al. (2026).
Illustrations
Citations
- Borchs1966: catalog, distribution, host, taxonomy, 94
- Cocker1899f: distribution, taxonomy, 14
- DeitzTo1980: distribution, taxonomy, 37
- Fernal1903b: distribution, host, taxonomy, 309
- Ferris1936a: taxonomy, 23
- Ferris1941: illustration, taxonomy, 12, 21
- Frogga1914: description, distribution, host, taxonomy, 677
- Frogga1915: description, distribution, host, taxonomy, 39
- Fuller1897b: distribution, host, 1346
- GiraldWiDo2024: behavior, distribution, host, Dataset S4
- Leonar1898: taxonomy, 46
- Leonar1903: distribution, taxonomy, 23
- Lindin1933a: taxonomy, 155
- MacGil1921: distribution, host, taxonomy, 2676
- Maskel1894b: description, distribution, host, illustration, taxonomy, 68-69
- MorrisMo1922: description, distribution, host, illustration, taxonomy, 103-106


