Valid Names Results

Morganella longispina (Morgan, 1889) (Diaspididae: Morganella)

Nomenclatural History

Common Names

Ecological Associates

Hosts:

Families: 39 | Genera: 78

Foes:

Families: 5 | Genera: 10

Geographic Distribution

Countries: 45

Keys

  • EvansWaMi2009: pp.63-67 ( Adult (F) ) [Diaspididae species found on avocado]
  • MillerDa2005: pp.29-34 ( Adult (F) ) [Field Key to Economic Armored Scales]
  • Ezzat1958: pp.241 ( Adult (F) ) [Egypt]
  • Balach1956: pp.124 ( Adult (F) ) [Africa]
  • Balach1948b: pp.292 ( Adult (F) ) [Mediterranean]
  • Ferris1942: pp.38 ( Adult (F) ) [North America]
  • Fullaw1932: pp.95-97, 108 ( Adult (F) ) [Hawaii]

Remarks

  • Systematics: Morganella longispina could be confused with Hemiberlesia palmae (Cockerell, 1892), as both have large median lobes and plates mostly fringed on their lateral margins rather than at their tips; diagnosis in Kondo & Watson (2022b).
  • Structure: Female scale dark colour, with exuviae in the center, and a small concentric circle in the centre of the first larval skin; about 0.6 mm in diameter; convex (Morgan, 1889). Scale of the female almost black, circular, high convex, exuviae central, a thick ventral scale formed, scale of the male of similar color, elongate, exuvia near one end (Ferris, 1938a). Colour photograph of scale cover by Wong et al. (1999).
  • Biology: Occurring on the bark (Ferris, 1938a).
  • Economic Importance: Cohic (1955, 1956) and Reboul (1976) recorded damage to various host plants in New Caledonia and French Polynesia. Das (1965) listed this species as a pest of tea plants in India. Williams & Watson (1988) informed on damage to grapefruit, lemon and fig in Tahiti. Morganella longispina is reported as a pest of minor importance of Citrus in Brazil and China (Hamon, 1981; Miller and Davidson, 2005), mangoes in Florida (Peña, 1993), and Philippines and Japan (Miller and Davidson, 2005). Other damage reports refer to fig in Algeria, Bermuda, Florida and to Bauhinia and Jasminum in New Caledonia (Miller and Davidson, 2005).
  • General Remarks: Description and illustration of adult female by Balachowsky (1926a, 1948b, 1956), Zimmerman (1948), Ferris (1938a), Brimblecombe (1955), Tang (1984), Chou (1985, 1986), Colon-Ferrer & Medina-Gaud (1998) and by Takagi (2007). Color photograph in Kondo & Watson (2022b).

Illustrations

Citations