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Showing 2 results for Pseudococcidae
Laboratory survey on biological and demographic parameters of Cryptolaemus montrouzieri (Mulsant) (Coleoptera: Coccinellidae) fed on two mealybug species

Volume 4, Issue 3 (9-2015)
Abstract
Biological and demographic parameters of the mealybug ladybird, Cryptolaemus montrouzieri (Mulsant) were evaluated on citrus mealybug, Planococcus citri (Risso) and obscure mealybug, Pseudococcus viburni (Signoret) under 24 ± 2 ºC, 80 ± 5% relative humidity and a photoperiod of 16:8 (L: D) h. The mealybugs had a significant effect on developmental time and reproductive and demographic parameters of the ladybird. Life span (egg to adult death) was obtained 220.85 ± 5.78 and 119.44 ± 2.1 days when fed on Pl. citri and Ps. viburni, respectively. However, mean number of eggs per female (fecundity) and mean percent of egg hatching were significantly higher on Ps. viburni than on Pl. citri. In addition, values of intrinsic rate of increase (rm), finite rate of increase (λ) andnet reproductive rate (R0) were significantly higher on Ps. viburni than on Pl. citri.The values of intrinsic rate of increase were estimated 0.081and 0.094 day-1 on Pl. citri and Ps. viburni, respectively. Results of this study suggested that the obscure mealybug is a more suitable prey than the citrus mealybug as the ladybird displayed shorter developmental time, and higher fecundity and growth rate when fed with obscure mealybug.  
Scale insect species (Hemiptera, Coccomorpha) on the date palms (Phoenix dactylifera) in Iran with description of a new species
Masoumeh Moghaddam, Sara Zarghami,
Volume 10, Issue 4 (12-2024)
Abstract
Surveys of scale insects (Hemiptera, Coccomorpha) infesting date palms (Phoenix dactylifera L., Arecaceae) in Iran represented the occurrence of 10 species belonging to five families. The recorded species were: Asterolecaniidae - Palmaspis phoenicis (Ramachandra Rao); Diaspididae - Aonidiella orientalis (Newstead), Fiorinia phoenicis Balachowsky, Parlatoria blanchardi (Targioni Tozzetti) and Parlatoria crypta McKenzie; Monophlebidae - Pseudaspidoproctus hyphaeniacus (Hall); Phoenicococcidae - Phoenicococcus marlatti Cockerell; and Pseudococcidae - Dysmicoccus brevipes (Cockerell), Maconellicoccus hirsutus (Green), and Formicococcus phoenicis Moghaddam & Zarghami sp. nov., a new species of mealybug feeding on the roots of the date palm, is described and illustrated based on the adult female. An annotated list of these species is presented.
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