Valid Names Results

Pseudococcus okinawaensis Tanaka & Choi, 2025 (Pseudococcidae: Pseudococcus)

Nomenclatural History

• Pseudococcus okinawaensis Tanaka & Choi 2025: 588. Type data: JAPAN: Okinawa Is., Itomon, Nishizaki, on Heliotropium arboreum, 03/10/2023, coll. H. Tanaka and T. Uesato. Holotype, female, by original designation Type depository: Fukuoka: Entomological Laboratory, Faculty of Agriculture, Kyushu University, Fukuoka, Japan; accepted valid name Notes: Paratypes: same data as for holotype, 7 adult females mounted on separate slides (3 ELKU, 4 EUMJ, HT179) Illustr.

Common Names

• monpanoki-kona-kaigaramushi TanakaChKa2025

Ecological Associates

Hosts:

Families: 3 | Genera: 3

Geographic Distribution

Keys

• TanakaChKa2025: pp.591 ( Adult (F) ) [Pseudococcus species found in Okinawa Island]

Remarks

• Systematics: Pseudococcus okinawaensis Tanaka & Choi is similar to P. ogasawarensis Kawai, 1973 in having translucent pores on both surfaces (anterior and posterior surfaces) of hind coxae, and in sharing other general morphological features. However, the new species differs from P. ogasawarensis (contrasting character states in P. ogasawarensis in parentheses) as follows: (i) total number of dorsal discoidal pores associated with the orifices of oral collar tubular ducts and rims of oral rim tubular ducts 9–16 (total number of dorsal discoidal pores associated with the orifices of oral collar tubular ducts and rims of oral rim tubular ducts 0–4); (ii) penultimate cerarii (C17) situated on non-sclerotized cuticle (penultimate cerarii (C17) situated on slightly sclerotized cuticle).
  P. okinawaensis is also similar to P. gilbertensis. (Tanaka et al. 2025)
• Structure: Live adult females: Found feeding on leaves and stems of the host-plant; secreting white to pinkish powdery wax on almost all body surfaces. Slide-mounted adult female: Body elongate oval, 2.9 (2.0–3.9) mm long and 1.6 (0.9–2.2) mm wide; derm membranous; segmentation recognizable, but not well developed. Anal lobes clearly observable, dorsal surface of each lobe with well-sclerotized plate and ventral surface with long apical seta, 182 (120–201) µm long; anal lobe bar absent. Antenna 531–549 (453–551) µm long, with 8 segments and many flagellate setae; subapical segment with 1 fleshy seta, apical segment with 3 fleshy setae. Eyes situated on margins, not associated with discoidal pores. Legs well developed, with many flagellate setae; hind trochanter + femur 389–390 (334–415) µm long; hind tibia + tarsus 425–426 (369–447) µm long; claw 34 (28–37) µm long, without a denticle. (Tanaka et al. 2025)
• Biology: The host-plants of P. okinawaensis are very common and endemic to Okinawa, suggesting that the species is probably endemic to the island (Tanaka et al. 2025).
• General Remarks: Description, illustration, color photograph, and molecular analysis by Tanaka et al. (2025).

Illustrations

Citations