Valid Names Results

Trionymus internodii (Hall, 1923) (Pseudococcidae: Trionymus)

Nomenclatural History

• Ripersia internodii Hall 1923: 8. Type data: EGYPT: Gezira, on Saccharum officinarum. Syntypes, female, Type depository: London: The Natural History Museum, England, UK; accepted valid name Illustr.
• Trionymus internodii (Hall, 1923); Ezzat 1962a: 75. change of combination
• Balanococcus internodii (Hall, 1923); Tang 1992: 131. change of combination
• Trionymus internodii (Hall, 1923); Ben-Dov 1994: 515. revived combination (previously published)

Common Names

Ecological Associates

Hosts:

Families: 4 | Genera: 13

Geographic Distribution

Keys

• EvansAb2023: pp.8-13 ( Adult (F) ) [Pseudococccidae of Egypt]
• YerlikBaKa2021: pp.326-327 ( Adult (F) ) [Trionymus of the Palearctic region]
• DanzigGa2015: pp.99-106 ( Adult (F) ) [Palaearctic Trionymus species]
• Tang1992: pp.128 ( Adult (F) ) [Palaearctic & Oriental regions] Key as: Balanococcus internodii
• Ezzat1962a: pp.69 ( Adult (F) ) [Egypt]

Remarks

• Structure: Female bocy broadly oval, up to 5 mm long, dark pink or violet in life. Antennae 6-segmented. Legs normally developed; hind coxae with numerous translucent pores. Anal apparatus complet. both pairs of ostioles well developed. (Danzig & Gavrilov-Zimin, 2015)
• Biology: Occurring on the leaf sheaths, stems, crowns and roots of the host plants.
• Economic Importance: Alhought often found in large numbers on various Gramineae (Willcocks, 1925), no damage has been reported. Ben-Dov (1980) recorded it from pineapple in Israel.
• General Remarks: Good description and illustration of the adult female given by Hall (1923), Ezzat (1962a) and by Williams (1970DJ). Good description of the adult female given by Tang (1992).

Illustrations

Citations