Valid Names Results

Ceroplastes janeirensis (Gray, 1828) (Coccidae: Ceroplastes)

Nomenclatural History

• Coccus (Ceroplastes) janeirensis Gray 1828: 7. Type data: BRAZIL: on Solanum sp.. Syntypes, female, Type depository: London: The Natural History Museum, England, UK; accepted valid name Notes: Type material probably lost (Ben-Dov, 1993).
• Coccus psidii Chavannes 1848: 139. Type data: BRAZIL: Rio de Janeiro, Bosafogo Bay, on Psidium sp.. Syntypes, female, Type depository: Paris: Museum National d'Histoire naturelle, France; junior synonym (discovered by PerontSoGr2008, 167).
• Columnea janeirensis (Gray, 1828); Targioni Tozzetti 1866: 145. change of combination
• Columnea ianeirensis (Gray, 1828); Targioni Tozzetti 1866: 145. misspelling of species epithet
• Columnea chavannesii Targioni Tozzetti 1866: 145. replacement name that is unjustified (discovered by BenDov1993, 47).
• Ceroplastes chavannesii (Targioni Tozzetti, 1866); Targioni Tozzetti 1868: 35. change of combination
• Ceroplastes janeirensis (Gray, 1828); Signoret 1869: 858. change of combination
• Ceroplastes psidii (Chavannes, 1848); Signoret 1869a: 867. change of combination
• Ceroplastes simplex Hempel 1900a: 475. Type data: BRAZIL: Sao Paulo, Ypiranga, on twigs of plant of Myrtaceae.. Syntypes, female, Type depository: Sao Paulo: Museu de Zoologia, Universidade de Sao Paulo, Brazil; junior synonym (discovered by PerontSoGr2008, 167).

Common Names

• Guava wax scale PerontKo2022
• Escama de cera de la guayaba PerontKo2022

Ecological Associates

Hosts:

Families: 9 | Genera: 12

Foes:

Families: 1 | Genera: 1

Associates:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• PerontSoGr2008: pp.142-144 ( Adult (F) ) [Ceroplastes species of São Paulo, Brazil]
• Granar1999: pp.55 ( Adult (F) ) [Argentina]

Remarks

• Systematics: Ceroplastes janeirensis has a well-developed caudal process, but a relatively narrow base in relation to the length and is heavily sclerotized in both young and old specimens. It differs from other Ceroplastes species mainly in having stigmatic setae conical with truncated apex. (Peronti & Kondo, 2022)
• Structure: the adults have a thick wax test covering the whole dorsal area. The first and second-instar female nymphs secrete a dorsal cap of dry wax which covers most of the dorsum, plus a submarginal series of about 15 filaments of dry wax. These dry wax filaments are retained in the third instar, but, the third instar also secretes a large volume of wet wax which covers the remainder of the dorsum. (Gimpel, et al., 1974) Colour photograph of adult female by Peronti et al. (2008).
• Biology: The females are neotenic, becoming adult after three moults. The first-instar nymphs are active and move in search of a suitable settling place on the host plant. They settle mainly along the veins on the ventral side of the leaves, remaining there until the end of second instar, although a few can also be found on the upper side of the leaves. The migration from the leaves to the younger branches occurs mainly after the moult to the third instar. (Rosa, et al., 2011)
• Economic Importance: Hempel (1920a) reported this wax scale as a serious pest of guavas in Northern Brazil (Paraiba and Pernambuco).
• General Remarks: Description and illustration of the adult female by De Lotto (1965a), Hodgson (1994a), Granara de Willink (1999) and by Peronti et al. (2008). Description of adult female by Chavannes (1848) and by Hempel (1920a). Detailed description and illustrations of female nymphs in Rosa, et al., 2011)

Illustrations

Citations