Valid Names Results
Coccus secretus Morrison, 1921 (Coccidae: Coccus)Nomenclatural History
- Coccus secretus Morrison 1921: 662. Type data: MALAYSIA: Penang Island, collected in hollow stem of Macaranga triloba.. Holotype, female, Type depository: Pretoria: South African National Collection of Insects, South Africa; Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name
Common Names
Ecological Associates
Hosts:
Families: 5 | Genera: 6
- Achariaceae
- Ryparosa fasciculata | GullanKoFi2018
- Euphorbiaceae
- Macaranga | Ali1971 HeckroFiGu1998
- Macaranga bancana | Morris1921 | Listed as Coccus caviramicolus in Morrison, 1921. (Gullan, et al., 2018)
- Macaranga glandibracteolata | GullanKoFi2018
- Macaranga hosei | GullanKoFi2018
- Macaranga hullettii | GullanKoFi2018
- Macaranga hypoleuca | GullanKoFi2018
- Macaranga indistincta | GullanKoFi2018
- Macaranga motleyana | GullanKoFi2018
- Macaranga pearsonii | GullanKoFi2018
- Macaranga pruinosa | GullanKoFi2018
- Macaranga trachyphylla | GullanKoFi2018
- Macaranga triloba | Ali1971 Morris1921
- Macaranga velutina | GullanKoFi2018
- Fabaceae
- Saraca thaipingensis | GullanKoFi2018
- Loganiaceae
- Strychnos vanprukii | GullanKoFi2018
- Sapindaceae
- Lepisanthus tetraphylla | GullanKoFi2018
- Pometia pinnata | GullanKoFi2018
Associates:
Families: 1 | Genera: 2
- Formicidae
- Cladomyrma | GullanKoFi2018
- Crematogaster | GullanKoFi2018 HeckroFiGu1998
Geographic Distribution
Countries: 3
- Brunei | GullanKoFi2018
- Malaysia | Ali1971 GullanKoFi2018
- Singapore | Ali1971 GullanKoFi2018
Keys
- GullanKoFi2018: pp.12 ( Adult (F) ) [Coccus species associated with Macaranga]
- Tang1991: pp.76 ( Adult (F) ) [China]
Remarks
- Systematics: urn:lsid:zoobank.org:act:DE21D89F-17C0-4AC6-8EEC-3D8CD663C7A4 Adult females of C. secretus can be distinguished from all other species of Coccus known from Macaranga by having the combination of (1) short antennae (each <160 μm long and usually with 6 segments); (2) very small legs (e.g., hind trochanter + femur <80 μm long); (3) short dorsal setae (≤10 μm long) tapering to a point; (4) a single row of sharply spinose marginal setae, each mostly 15–30 μm long; and (5) robust anal plate setae, each typically ≥2 μm wide for most of its length and mostly 20–30 μm long. Adult females of C. secretus are most similar to the adult females of the C. tumuliferus group (C. caviramicolus, C. pseudotumuliferus and C. tumuliferus) in having very short dorsal setae but they differ from those females in that their dorsal setae each taper to a point (apex rounded in the other species), their marginal setae are never in 2 rows and never flagellate or fimbriate (sometimes in 2 or even 3 rows and often fimbriate or flagellate in the other species) and their anal plate setae mostly are longer (typically 20–30 μm long) and distinctively broad for their full length (tapering to a point and usually ≤ 20 μm long in the other species). Specimens of C. secretus from non-Macaranga host plants were indistinguishable morphologically from females from Macaranga, although four of the five non-Macaranga females measured had a slightly larger length to width ratio for their anal plates (2.5–2.7) compared with Macaranga females (ratio never greater than 2.4). (Gullan, et al., 2018) The analysis of Quek et al. (2017) using two nuclear genes found C. secretus to be separated from the other Coccus species on Macaranga by the placement of C. hesperidum.
- Structure: Live adult females varied from pale yellowish-white to pale pink or dark pink (Fig. 2F), depending on age, with the dorsal wax appearing granular due to being composed of small irregularly shaped pieces, and the marginal stigmatic areas were often distinct due to accumulation of white wax. Slide-mounted adult female. body oval, often broadest posteriorly, 1.2–3.4 mm long, 1.0–2.7 mm wide. (Gullan, et al., 2018)
- Biology: Occupies the hollow stems of myrmecophytic species of Macaranga (Euphorbiaceae) in association with ants of the genus Crematogaster (Heckroth et al., 1998)
- General Remarks: Detailed redescription and illustration in Gullan, et al., 2018
Illustrations
Citations
- Ali1971: distribution, host, 28
- BenDov1993: catalog, 89
- GullanKoFi2018: description, diagnosis, distribution, genebank, host, illustration, taxonomy, 39-43
- HeckroFiGu1998: distribution, ecology, host, life history, 427-443
- HouadrKlFa2018: ant association, ecology,
- Morris1921: distribution, host, taxonomy, 662-663
- QuekUeGu2017: DNA, ant association, phylogenetics, 825-835
- WebberMoCu2007: ant association, host, 362
- Willia2017a: catalog, list of species, 214
- WilliaBe2009: catalog, taxonomy, 43
