Dysmicoccus trispinosus ( Hall, 1923 )

Evans, Gregory A. & Abd-Rabou, Shaaban, 2023, The mealybugs (Hemiptera: Coccoidea: Pseudococcidae) of Egypt, Insecta Mundi 2023 (999), pp. 1-83 : 16

Dysmicoccus trispinosus ( Hall, 1923)

( Figure 12, after Ezzat 1960c)

Taxonomy. Pseudococcus trispinosus Hall 1923: 5 ; Type data. EGYPT: Nag Hamadi , on roots of Imperata cylindrica ; Hosny 1939: 6.

Hosts in Egypt. Ambrosia polystachya , Arundo donax , Carex comans , Chenopodium sp. , Cladium mariscus , Cynodon dactylon , Cyperus sp. ( Hosny 1939), Echinochloa colona , Eragrostis pilosa ( Hosny 1939) , Hordeum vulgare , Imperata cylindrica , Panicum viride ( Hosny 1939) , Rhapis excela , Saccharum officinarum , Setaria verticillata , Sorghum halepense , Zea mays ( Hall 1923) .

Distribution in Egypt. Nag Hamadi, Upper Egypt, various localities in the Nile Delta, Giza and Nag Hamadi in Upper Egypt, 1924–1939 ( Hall 1923); Bilbeis, Belkas, Damanhour, Minia-el-Kamh, Shebin-el-Kom, Talkha ( Hosny 1939).

Remarks. Hall (1925) stated that this species was found on the roots of sedge, Panicum , maize and sugarcane. It is most commonly found on Poaceae and Cyperaceae but has also been collected on Chenopodium ( Amaranthaceae ) and Ambrosia ( Asteraceae ). It is known also to occur in Israel. Hosny (1939) reported it on the roots of Cyperus , Panicum viride and Eragnotis pilosa . Ezzat (1960a) redescribed and illustrated the species.