Valid Names Results

Trionymus polyporus Hall, 1924 (Pseudococcidae: Trionymus)

Trionymus polyporus Hall 1924: 6. Type data: EGYPT: Gezireh, on Andropogon sorghum [= Sorghum vulgare].. Syntypes, female, by subsequent designation Type depository: London: The Natural History Museum, England, UK; accepted valid name Illustr.
Erium polyporum (Hall, 1924); Lindinger 1935a: 122. change of combination
Trionymus inyazurae Hall 1937: 131. Type data: ZIMBABWE: Inyazura, on grass. Syntypes, female, Type depository: London: The Natural History Museum, England, UK; junior synonym (discovered by EtiennMa1993, 261). Illustr.
Balanococcus polyporus (Hall, 1924); Tang 1992: 134. change of combination
Trionymus polyporus Hall, 1924; Ben-Dov 1994: 526. revived combination (previously published)
Trionymus polyorus Hall, 1924; Evans & Abd-Rabou 2023: 13. misspelling of species epithet

Families: 2 | Genera: 7

Arundo donax | BenDov1994 Ezzat1962a
Cynodon dactylon | BenDov1994 Hall1924
Echinochloa colona | BenDov1994 Ezzat1962a AbdRabEv2021 | (= Panicum colonum),
Imperata cylindrica | BenDov1994 Willco1922
Poaceae | BenDov1994 Hall1937
Sorghum bicolor | AbdRabEv2021 BenDov1994 Hall1924 | (= Sorghum vulgare)(= Andropogon sorghum)
Sorghum halepense | BenDov1994 Hall1924

Countries: 2

Structure: Female body elongate-oval, up to 4 mm long. Antennae 8-segmented. Legs thin; hind coxae with translucent pores. Anal apparatus complicated, with 3-4 rows of spinulae. Both pairs of ostioles present. Circulus absent. Multilocular and trilocular pores scattered on entire body surface. (Danzig & Gavrilov-Zimin, 2015)
Biology: Occurring beneath the leaf sheaths of the host plant.
Economic Importance: Willcocks (1925) reported that millet plants may become infested with dense population of this mealybug, when the plants have been left for a much longer than the normal time required for grain production.
General Remarks: Good description and illustration of the adult female given by Hall (1924), Ezzat (1962a) and by Williams (1970DJ). Good description of the adult female given by Tang (1992). Good description and illustration of the adult female of the junior synonym, Trionymus inyazurae given by Hall (1937) and by Williams (1958b).