Valid Names Results

Anzaspis angusta (Green, 1904) (Diaspididae: Anzaspis)

Nomenclatural History

• Chionaspis angusta Green 1904: 67. Type data: AUSTRALIA: Victoria, Frankston, on Leptospermum laevigatum, June, by C. French. Syntypes, female, Type depository: London: The Natural History Museum, England, UK; accepted valid name Illustr.
• Chionaspis candida Green 1905b: 6-7. Type data: AUSTRALIA: Victoria, Myrniong, on Callistemon salignus. Syntypes, female, Type depository: London: The Natural History Museum, England, UK; junior synonym (discovered by CharleHe2002, 597). Illustr.
• Chionaspis angustata Green, 1904; Sanders 1906: 10. misspelling of species epithet
• Chionaspis eucalypti Froggatt 1914: 987. Type data: AUSTRALIA: New South Wales, near Mittagong, on Eucalyptus sieberiana. Syntypes, female, Type depository: Orange: Agricultural Scientific Collections Unit, Orange Agricultural Institute, NSW, Australia; junior synonym (discovered by Green1915d, 49). Illustr.
• Duplachionaspis candida (Green, 1905); MacGillivray 1921: 332. change of combination
• Phenacaspis angusta (Green, 1904); MacGillivray 1921: 351. change of combination
• Trichomytilus candida (Green, 1905); Lindinger 1933a: 165. change of combination
• Phenacaspis candida (Green, 1905); Ferris 1956: 68. change of combination
• Phenacaspis eucalypti (Froggatt, 1914); Borchsenius 1966: 121. change of combination
• Anzaspis angusta (Green, 1904); Henderson 2011: 58-62. change of combination Notes: LECTOTYPE female, designated to preserve nomenclatural stability: AUSTRALIA, on an original slide labelled: "Chionaspis angusta Green, from Leptospermum laevigatum, Victoria, Australia, coll. C. French No. 33", [1]: 1 F, is one of 5 individuals on the slide and is indicated by a ‘mud map’ on the slide cover that it is #2. (Selected and marked by Jon Martin, BMNH, as requested). Paralectotypes. As above, the 4 remaining females on the lectotype slide, [1]: 4 F; a second slide with same data, [1]: 7 F, 1 f2nd (moulting) + a piece of leaf containing scale covers. Chionaspis candida Green. LECTOTYPE female, designated to preserve nomenclatural stability: AUSTRALIA, on an original slide labelled "Type. Chionaspis (candida) Green, = angusta, from Calistemon salignis, Myrniong, Victoria, Australia, coll. J. Lidgett, No. 61", [1]: 1 F, is the shortest one of 5 individuals that are almost touching each other. (Selected by Jon Martin, BMNH, as requested). Paralectotypes. As above, the remaining 4 females on the lectotype slide, [1]: 4 F. Note: Green wrote on the type slide "= angusta" but did not publish the synonymy (Henderson, 2011). Illustr.

Common Names

Ecological Associates

Hosts:

Families: 2 | Genera: 5

Foes:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• LagowsHo2012: pp.66 ( Adult (F) ) [Key to adult female Diaspididae closely related to “Chionaspis” recorded from the tropical South Pacific and New Zealand]
• Hender2011: pp.57-58 ( Adult (F) ) [Key to Anzspis adult females, in combination with 1st-instar nymphs/1st exuvia]
• MacGil1921: pp.351 ( ) [Key to species of Phenacaspis] Key as: Phenacaspis angusta
• MacGil1921: pp.332 ( Adult (F) ) [Species of Duplachionaspis] Key as: Duplachionaspis candida

Remarks

• Systematics: The 1st-instar nymph of A. angusta shares the possession of 1 pair of gland spines on the pygidium that are 2× as long as the median lobes with A. cordylinidis, Pellucidaspis epiphytidis (Maskell), and Pseudaulacaspis eugeniae (Maskell); it shares possession of 1 pair of dorsal cephalic ducts with Poliaspis spp., P. eugeniae (absent in P. epiphytidis), Serenaspis minima (Maskell), and Symeria pyriformis (Maskell), but each of these species differs in the number and distribution of dorsal thoracic microducts. The 1st-instar nymph of Fusilaspis phymatodidis (Maskell) also has 1 pair of dorsal cephalic ducts, but differs in having usually 2 pairs of gland spines instead of 1 pair on the pygidium. The 1st-instar nymph of A. gahniae lacks any kind of dorsal thoracic ducts and its gland spines either do not extend beyond the margin or only at most to 1.5× the length of the median lobes. (Henderson, 2011)Takagi (1985) states that the generic position of this species is indeterminate.Chionaspis candida is readily separable from all its allies by the form of the pygidial lobes (Green, 1905b). Chionaspis candida is close to Chionaspis ethelae, but they "are sufficiently distinctive, by the form of the median pygidial lobes, to suggest that they might be included in another genus to include species from the Australian fauna, but this is not done here (Ferris, 1956)."
• Structure: Female scale cover elongate, white, exuvia terminal, 1st exuvium translucent, 2nd exuvium pale brown; male scale not observed. Female body with noticeably finger-like produced abdominal lobes. Female, eggs, and crawlers all golden-yellow.Female puparium elongate, narrow, somewhat resembling that of Lepidosaphes gloveri. White in color, more or less completely covered. Male puparium snowy-white, feebly tricarinate. Exuviae orange yellow (Green, 1904). Adult female body quite slender, widening to the first abdominal segment (Ferris, 1955d).Female puparium greyish white, covered with a fine granulated secretion, giving it a crystalline appearance and a slight brown tint. Pellicles bright deep yellow, first one forming a distinct stalk at base with second one nearly hidden. Whole scale tapers into a regular turbinate or fan-shaped form, rather convex, with apical margin somewhat irregular. Male puparia small, elongate, ridged, snow white, pellicle dull yellow. Adult female elongate, reddish brown, pygidium deep yellow, very chitonous and finely striate (Froggatt, 1914).Female puparium snowy white, smooth and sericeous, exuviae pale yellow, flattish, moderately dilated behind, 2-2.50 mm long. Male puparium white, feebly keeled, 1.5 mm long. Adult female broadest across median abdominal region. Lateral margins of abdominal segments produced into rounded lobes (Green, 1905b).
• Biology: On the leaves of host plants.Female scales thickly clustered together, male scale scattered among them (Froggatt, 1914).
• General Remarks: Detailed description and illustrations in Henderson, 2011.Descriptions and illustrations by Green (1904) and Froggatt (1914).Best description and illustration by Green (1905b).

Illustrations

Citations