Valid Names Results

Pulvinaria ixorae Green, 1909 (Coccidae: Pulvinaria)

Nomenclatural History

• Pulvinaria ixorae Green 1909a: 266. Type data: SRI LANKA: Batticaloa, on Ixora coccinea.. Syntypes, female, Type depository: London: The Natural History Museum, England, UK; accepted valid name

Common Names

Ecological Associates

Hosts:

Families: 4 | Genera: 5

Foes:

Families: 1 | Genera: 1

Associates:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• DasPrDa2025: pp.578-579 ( Adult (F) ) [Species of Pulvinaria found in India]
• TalukdDa2021: pp.440 ( Adult (F) ) [Pulvinaria in India]
• Joshi2017: pp.540 ( Adult (F) ) [Indian species of Pulvinaria]
• Green1909a: pp.266 ( Adult (F) ) [Ceylon]

Remarks

• Systematics: P. ixorae resembles P. kalyaniensis Talukder & Das, 2021 in having submarginal tubercles, dorsal tubular ducts and an almost similar type of marginal setae. However, P. ixorae can easily be distinguished from P. kalyaniensis by possessing: (i) three pairs of prevulvar setae, and (ii) a reticulate pattern on the dorsal derm. Pulvinaria ixorae is also quite similar to P. neocellulosa Takahashi, 1940 in having long marginal setae with blunt or slightly capitate apices, well-developed reticulated dermal areolations on the dorsum and eyes located in the dorsal submarginal areas. However, P. ixorae differs from P. neocellulosa by having four different types of ventral tubular ducts, whereas P. neocellulosa has only three types. (Das et al., 2026)
• Structure: In life: Adult female body elongate-oval, predominantly greenish, becoming more-or-less dorsally convex before oviposition. Ovipositing females on stems and leaves each produce a conspicuous, short, white fluffy ovisac from the ventral surface of the posterior abdomen, which extends up to approximately 1 cm behind the insect as her body shrinks and shrivels during oviposition. Eggs whitish; early nymphal instar yellowish, gradually becoming green as the insect matures. Slide-mounted female: Body grossly elongate oval, 2.7–3.1 mm long, 1.4–1.8 mm wide. Anal cleft 390–430 μm long, about 1/7th of body length. (Das et al., 2026)
  Miller et al. (2014) provide an illustration of P. ixorae in which only three types of ventral tubular ducts are shown. However, Das et al. (2026) found four types of ventral tubular ducts; the additional type is designated as Type IV.
• Biology: Adult females and nymphs were found on young stems of the host plant. Adult females, ovipositing individuals, and nymphs of different instars were collected concurrently from the same host plant during December, indicating that the generations overlap. Severe infestations were associated with extensive development of sooty mould on plant surfaces. (Das et al., 2026)
• General Remarks: Redescription, illustration, and color photographs by Das et al. (2026).

Illustrations

Citations