Valid Names Results

Coccus tumuliferus Morrison, 1921 (Coccidae: Coccus)

Nomenclatural History

• Coccus tumuliferus Morrison 1921: 655. Type data: SINGAPORE: in hollow stems of Macaranga hypolema.. Syntypes, female and first instar, Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name Notes: Paratypes: same data as holotype but two slides specify "in hollow stems of M. hypotema", 4(4 adult females, including 1 on slide with holotype, + 2 slides with a number of first-instar nymphs)
• Coccus tumulifer Morrison, 1921; Lindinger 1932f: 197. emendation that is unjustified (discovered by WilliaBe2009, 46).

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Associates:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• GullanKoFi2018: pp.12 ( Adult (F) ) [Coccus species associated with Macaranga]
• Tang1991: pp.76 ( Adult (F) ) [China]

Remarks

• Systematics: urn:lsid:zoobank.org:act:537C7FF2-8E3B-423A-ADE9-96E5AD7DD249 Gullan & Stewart (1996), while comparing several features of this species with Torarchus endocanthium Gullan & Stewart, stated that Coccus tumuliferum did not belong to Coccus (subfamily Coccinae) but was undoubtedly a member of the Myzolecaniinae.. Adult females of C. tumuliferus can be distinguished from all other species of Coccus known from Macaranga by having the combination of (i) very short dorsal setae that can appear to be absent; (ii) almost always 8 dorsal submarginal raised areas on each side of body plus 1 medially on head (most obvious on live or ethanol preserved specimens); and (iii) usually 14–22 dorsal setae per anal plate, each slender spinose and mostly ≤20 μm long. Adult females of C. tumuliferus are most similar to the adult females of C. caviramicolus, C. pseudotumuliferus and C. secretus, which all also have extremely short dorsal setae, but they differ from females of C. caviramicolus in having marginal setae either flagellate or with few fimbriations (strongly fimbriate in C. caviramicolus) and anal plates with a ratio for the length of the anterolateral margin to posterolateral margin of 1.12 to 1.38 (ratio mostly 1.41 to 2.06 in C. caviramicolus); from C. secretus in having dorsal setae rounded at the apices (tapering to a point in C. secretus) and the dorsal setae of the anal plates are usually much shorter (each 8–23 μm long in C. tumuliferus compared with 15–45 μm long in C. secretus); and from C. pseudotumuliferus in the number of submarginal raised areas (typically 8 on each side plus 1 medially on head in C. tumuliferus compared with usually 11 on each side plus 1 medially on head in C. pseudotumuliferus), the shape of these raised areas (usually circular in C. tumuliferus but oval to elongate in C. pseudotumuliferus), and the number of stigmatic setae (0–3 but usually 1 per cleft in C. tumuliferus compared with usually 3 per cleft in C. pseudotumuliferus). (Gullan, et al., 2018)
• Structure: Unmounted adult female “.. rarely broad oval, but usually broadened behind and triangular with angles rounded; plane of dorsal surface flat, but in dried specimens covered with relatively large knobs having a fairly definite arrangement of a median longitudinal single row and on each side of this two other rows, the outer one forming a continuous row around the body at the margin; dorsally covered with a thin, brittle, whitish but more or less translucent, glassy secretion, very easily broken and usually more or less wanting, molded into elevations and depressions corresponding to those of the body, this covering normally wanting over the flattened extreme margin of the body; body color dull brown, of secretionary covering, as stated, translucent whitish; .. (Morrison 1921: 655). For the present revision, the available adult females preserved in ethanol were pinkish red in colour. Although Morrison recorded the body of dry adult females as dull brown, but this is unlikely to reflect the color in life. Slide-mounted adult female body oval to broadly oval, 1.5–2.8 mm long, 1.2–2.4 mm wide, widest in posterior half. (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: Good description and illustration of the adult female given by Morrison (1921).

Illustrations

Citations