Valid Names Results

Icerya jacobsoni Green, 1913 (Monophlebidae: Icerya)

Nomenclatural History

• Icerya jacobsoni Green 1913: 316. Type data: INDONESIA: Java, Semarang, on Dombeya acutangula.. Lectotype, female and first instar, by subsequent designation (UnruhGu2008b,83). Type depository: London: The Natural History Museum, England, UK; accepted valid name
• Crypticerya jacobsoni (Green, 1913); Morrison 1928: 203. change of combination
• Crypticerya jakobsoni (Green, 1913); Tao 1999: 2. misspelling of species epithet
• Icerya jacobsoni Green, 1913; Unruh & Gullan 2008: 41. revived combination (previously published)
• Crypticerya jacobsoni (Green, 1913); Gavrilov-Zimin 2018: 175. revived combination (previously published) Notes: Gavrilov-Zimin rejected the genetic basis for separation of genera. Based on his morphological definition of genera, he reassigned several species within this family.

Common Names

Ecological Associates

Hosts:

Families: 20 | Genera: 31

Geographic Distribution

Keys

• Gavril2018: pp.178 ( Adult (F) ) [Species of Crypticerya] Key as: Crypticerya jacobsoni
• UnruhGu2008b: pp.72-73 ( Adult (F) ) [Species of Icerya]
• TangHa1995: pp.148, 614-615 ( Adult (F) ) [Asia]
• Rao1951a: pp.158 ( Adult (F) ) [South East Asia]
• Morris1920: pp.150 ( Adult (F) ) [Philippines]

Remarks

• Systematics: Icerya jacobsoni has 20 waxy extensions, the last two of which are often merged, 10 antennae, and no ovisac when laying eggs; I. aegyptiaca is smaller than I. jacobsoni, with 21 waxy extensions around margin, 11 antennae, and the female secretes wax to form an ovisac when laying eggs (Zhang et al. 2023).
• Structure: I. jacobsoni is 5.6 ~ 8.5 by 4.0 ~ 6.2 mm in size. It has 10-segmented antennae, about 919 μm long. Marginal seta are many. There are 3 abdominal spiracles. Length of tibia + tarsus in hind leg is 1307 μm. Length of trochanter + femur in hind leg is 1187 μm. There is a trilocular centre with a tongue-like projection. (Zhang et al. 2023)
• General Remarks: Description and illustration of adult female by Rao (1951a). Description of adult female by Unruh & Gullan (2008b). Color photographs by Zhang et al. (2023).

Illustrations

Citations