Valid Names Results

Coccus praetermissus Lin & Tanaka, 2017 (Coccidae: Coccus)

Nomenclatural History

• Coccus praetermissus Lin & Tanaka 2017: 585. Type data: AUSTRALIA: Queensland, Shelburne, Bramwell Junction, -12.09° S, 142.56° E, on Mangifera indica, 7/12/2013, by D. Pearce and L. Benson. Holotype, female, by original designation Type depository: Canberra: Australian National Insect Collection, CSIRO Entomology, Australia; accepted valid name Notes: Paratype. Adult female (ID: YPL00465). Malaysia: Kuala Lumpur, on Ixora chinensis (Rubiaceae), 13.xii.2010, Y.-P. Lin (ANIC: 1/1 female). Paratype. Adult female (ID: YPL00732). Thailand: Ranong, on Rhizophora mucronata (Rhizophoraceae), iv.2003, J. Offenberg (ANIC: 1/1 female). Illustr.

Common Names

Ecological Associates

Hosts:

Families: 6 | Genera: 6

Geographic Distribution

Keys

• CaoWaHo2022: pp.126 ( Adult (F) ) [Coccus species in China]

Remarks

• Systematics: GenBank accession numbers: 18S: MF594280; 28S: MF594316; COI: MF579677; EF-1α: MF594369; wingless: MF579618. Lin et al. (2013) found that three adult female specimens resembling Coccus hesperidum, collected from Taiwan and Malaysia, formed a sister clade to an obligate myrmecophilous species of coccid, C. formicarii (Green). These insects are morphologically distinct from C. formicarii but almost identical to C. hesperidum, with the exception that their dorsal setae which have bluntly rounded apices similar to specimens reported from Papua New Guinea by Williams & Watson (1990) and from Poland by Łagowska (1999). Adult females of Coccus praetermissus can be identified by the following combination of morphological character states; (i) dorsal setae with blunt, rounded apices; (ii) dorsal tubular ducts, if present, situated around submarginal areas; (iii) anal plates together quadrate, with anterior margin subequal in length to posterior margin; (iv) antennae each with 7 segments; (v) ventral tubular ducts present on medial area near mesocoxae; (vi) each leg with a weak tibio-tarsal sclerosis. The only character of adult females that can be used to differentiate C. praetermissus from C. hesperidum s. s. is the shape of the dorsal setae. (Lin, et al., 2017)
• Structure: Adult females of Coccus praetermissus can be identified by the following combination of morphological character states; (i) dorsal setae with blunt, rounded apices; (ii) dorsal tubular ducts, if present, situated around submarginal areas; (iii) anal plates together quadrate, with anterior margin subequal in length to posterior margin; (iv) antennae each with 7 segments; (v) ventral tubular ducts present on medial area near mesocoxae; (vi) each leg with a weak tibio-tarsal sclerosis. The only character of adult females that can be used to differentiate C. praetermissus from C. hesperidum s. s. is the shape of the dorsal setae. (Lin, et al., 2017) Slide-mounted female body elongate oval, 3.0–3.8 mm long, 1.5–3.0 mm wide, margin with a shallow indentation at each stigmatic cleft; anal cleft 1/5–1/7 body length. Derm membranous throughout when young. Dermal areolations well developed in old females, indicating slight sclerotisation. Dorsal setae frequent throughout, relatively short and with blunt apices, each 5–10 μm long, 1–1.5μ wide on shaft with a well-developed basal socket.
• Biology: It appears from samples of C. praetermissus collected for Lin, et al. 2017, and from those slide-mounted specimens held in Australian state and national collections, that this species might be restricted to tropical regions of eastern Asia and Oceania including Australia, whereas C. hesperidum s. s. is much more widespread.
• General Remarks: Detailed description, illustration, photographs in Lin, et al., 2017.

Illustrations

Citations