Valid Names Results

Pseudaulacaspis eugeniae (Maskell, 1892) (Diaspididae: Pseudaulacaspis)

Nomenclatural History

Common Names

Ecological Associates

Hosts:

Families: 13 | Genera: 30

Foes:

Families: 3 | Genera: 3

  • Aphelinidae
  • Coccinellidae
    • Scymnobius flavifrons | Flande1940 | (= Scymnus flavifrons)
  • Encyrtidae

Geographic Distribution

Countries: 10

Keys

  • WeiFe2012a: pp.13-16 ( Adult (F) ) [Key to Chinese species of the genus Pseudaulacaspis]
  • Hender2011: pp.165 ( Adult (F) ) [Key to Pseudaulacaspis adult females in New Zealand]
  • Chen1983: pp.65 ( Adult (F) ) [Key to Chinese species of Phenacaspis] Key as: Phenacaspis eugeniae

Remarks

  • Systematics: Ferris (1955d) states that some records of P. eugeniae may be misidentifications of P. cockerelli. Takahashi's 1929 reference to Phenacaspis eugeniae is a misidentification of Pseudaulacaspis cockerelli (Takagi, 1970). Differences noted between Pseudaulacaspis brimblecombei and P. eugeniae in New Zealand by Henderson (2011) include: (i) the shape of the median lobes, digitatae or notched both sides in P. eugeniae (smooth laterally in P. brimblecombei); (ii) ventral gland tubercles of 2 sizes, particularly large on abdomen, small on thorax in P. eugeniae (all about same smaller size on P. brimblecombei). Vestigial leg patches not detected.
  • Structure: Female scale white or sometimes yellow, elongated, pyriform, flattish. Exuviae terminal, yellow, not large. Male scale white, elongate, soft and cottony; often appearing like a small irregular mass of cotton, but in individuals of normal form a distinct carination is visible. Adult female elongate, yellow or brown (Maskell, 1892).Female scale whitish, flattish, pyriform. Exuviae yellow, small. Male scale whitish, elongate, narrow, carinate. Adult female yellow, elongate (Maskell, 1895b).
  • Biology: Prefers the underside of leaves of its host plants. (Henderson, 2011)
  • General Remarks: Detailed description and illustration by Maskell (1892) and Ferris (1955d). Redescription and illustrations in Henderson, 2011.Detailed descriptions by Maskell (1895b) and Froggatt (1914).

Illustrations

Citations