Valid Names Results

Coccus malloti (Takahashi, 1956) (Coccidae: Coccus)

Nomenclatural History

• Pulvinaria malloti Takahashi 1956: 25. Type data: JAPAN: Kyoto, Tokyo and Yokohama, on Euonymus oxyphilla, Aphananthe aspera, Mallotus japonicus, Pittosporum tobira, Illicium religiosum and Cornus controversa.. Syntypes, female, Type depository: Sapporo: Entomological Institute, Faculty of Agriculture, Hokkaido University, Japan; accepted valid name
• Coccus malloti (Takahashi, 1956); Kawai 1980: 144. change of combination

Common Names

• Akamegashiwa-kata-kaigaramushi Tanaka2019

Ecological Associates

Hosts:

Families: 7 | Genera: 7

Geographic Distribution

Keys

• ChoiLe2018: pp.122-123 ( Adult (F) ) [Coccus in Korea]
• Tang1992: pp.77 ( Adult (F) ) [China]
• Kawai1980: pp.141-142 ( Adult (F) ) [Japan]

Remarks

• Systematics: Syntypes of Coccus malloti are deposited in the Laboratory of Systematic Entomology of Hokkaido University (SEHU). This species is currently classified as a species of the genus Coccus that is the type genus of the tribe Coccini. However, it resembles most species belonging to the genus Pulvinaria that is the type genus of the tribe Pulvinariini in having three different types of ventral tubular ducts. The distribution of ventral tubular ducts of the species is also similar to that observed in most species belonging the genus Pulvinaria, although type I ventral tubular ducts are absent on the medial area of the mesothoracic, metathoracic and abdominal segments. Hodgson (1994) proposed nine diagnostic character states for the tribe Pulvinarrini, and the species has eight of them. Some of these morphological character states are not observed in most species belonging to the genus Coccus, nor the tribe Coccini. Furthermore, distribution of ventral tubular ducts and multilocular pores of the species do not fit the diagnostic character states of the tribe Coccini proposed by Hodgson (1994). These facts might suggest that the current taxonomic position of the species is incorrect and that it should be retransferred from the genus Coccus to the genus Pulvinaria or another related genus belonging the tribe Pulvinariini. However, the former species do not form an ovisac during the oviposition period (Kawai, 1980; Choi & Lee, 2018), whereas ovisac production is considered to be one of the most important diagnostic characters of the tribe Pulvinariini (Hodgson, 1994; Tanaka & Amano, 2008; Tanaka, 2008, 2015). On this basis, C. malloti would not be placed in the genus Pulvinaria. Kawai (1980) presumably considered the character of not producing an ovisac as taxonomically significant when he transferred the species to the genus Coccus. (Tanaka, 2019)
• Structure: Adult female body elongate oval, flattened, or slightly convex. Young adult females yellowish to dark brownish, with a reticulated pattern of brown or black stripes, getting darker at maturity. A longitudinal band medially on dorsum; dermal areolations present but small; dorsal tubercles present; dorsal tubular ducts absent; dorsal setae sharply spinose; marginal setae mostly with simple pointed apices; multilocular disc-pores usually with ten loculi; ventral tubular ducts of three types. (Choi & Lee, 2018) Colour photograph in Kawai (1980, Figs. 11,a,b).
• General Remarks: Description and illustration of the adult female given by Takahashi (1956). Redescription, illustration and photographs in Choi & Lee, 2018.

Illustrations

Citations