Figure - available from: Phytoparasitica
This content is subject to copyright. Terms and conditions apply.
Diagnostic characters of slide mounted adult female of Platylecanium nepalense Takagi. a Marginal setae; b Spiracular setae; c Sclerotized stgmatic cleft; d Dermal areolations; e Dorsal setae; f Cribriform plates (Dorsal preopercular pores); g Rhomboid anal plates; h Apical, subapical and inner margin setae; i Lateral margin setae; j Anterior margin setae; k Ventral setae; l Prevulvar seta; m Submarginal seta; n Antenna; o Spiracle without sclerotized plate; p Multilocular pores; q Female habitus
Source publication
The occurrence of Platylecanium nepalense Takagi (Hemiptera, Coccomorpha, Coccidae) in India is reported. The scale was collected on leaflets of ornamental palms viz., areca palm, Dypsis lutescens (H.Wendl.) Beentje & J. Dransf (Arecaceae) and Indian date palm, Phoenix sylvestris (L.) Roxb. (Arecaceae) growing in front yard of residences in Meghala...
Citations
... Phenacoccus solenopsis Tinsley (Hodgson et al. 2008), Paracoccus marginatus Williams & Granara de Willink (Muniappan et al. 2008), Phenacoccus madeirensis Green (Shylesha & Joshi 2012), Pseudococcus jackbeardsleyi Gimpel & Miller (Mani et al. 2013) and Phenacoccus manihoti Matile-Ferrero (Joshi et al. 2020b)]; and soft scales [Hemiptera: Coccidae, e.g. Kilifia acuminata (Signoret), Trijuba oculata (Brain), Protopulvinaria longivalvata Green (Joshi & Rameshkumar 2017), Pulvinaria urbicola Cockerell (Joshi 2017), Platylecanium nepalense Takagi (Joshi & Firake 2020), Hemilecanium theobromae Newstead (Joshi & Kondo 2020) and Ceroplastes cirripediformis Comstock (Joshi et al. 2021)]. Underlying explanations for such incursions and their subsequent rapid spread within the country are not known. ...
Four species of soft scale insect [Hemiptera: Coccidae: Fistulococcus pokfulamensis Hodgson & Martin, Kilifia deltoides De Lotto, Maacoccus piperis (Green) and Paralecanium machili Takahashi] and two species of mealybug [Hemiptera: Pseudococcidae: Antonina thaiensis Takahashi and Formicococcus simplicior (Green)] are recorded in India for the first time. Each of the six species is comprehensively diagnosed based on Indian material, and compared with earlier descriptions. Keys to the Indian species in their respective genera are provided to facilitate identification. Ecological information on host plants, associated ants and natural enemies is also given.
The notoriously destructive and invasive soft scale, Ceroplastes cirripediformis Comstock (Hemiptera: Coccomorpha: Coccidae), is recorded for the first time from India. The scale is redescribed to facilitate its identification and information on its host range, natural enemies and distribution is provided. An identification key to the Indian species in this genus is given. Management options in the event of an outbreak are discussed briefly. The establishment of this scale insect warrants special attention in India as it is a potentially damaging plant pest and has a broad host range across many plant families.
The occurrence of an African soft scale Hemilecanium theobromae Newstead (Hemiptera: Coccomorpha: Coccidae) in India is reported for the first time. The scale was collected on phylloclades of Euphorbia caerulescens Haw. (family Euphorbiaceae) growing in rocky hills of Kailasagiri village, Chintamani Taluk, Chikkaballapur district in the state of Karnataka, South India. Herein we provide basic diagnostic information for H. theobromae for both live and slide-mounted specimens and discuss its affinities with closely-related species. A key to separate the four species of Hemilecanium recorded from the Oriental Region, i.e. Hemilecanium imbricans (Green), H. mangiferae Kondo & Williams, H. theobromae and H. uesatoi Kondo & Hardy, is provided. Aspects of the distribution and economic importance of H. theobromae are briefly discussed. The presence of this alien insect in India is alarming and represents a possible major threat to cacao plantations.
