Three new species of Kerria (Hemiptera: Sternorrhyncha: Coccoidea: Tachardiidae), a redesciption of K. yunnanensis Ou & Hong, and a revised key to species of Kerria (original) (raw)
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Three new species of Kerria (Hemiptera: Coccoidea: Tachardiidae) from India
Zootaxa, 2013
Three new species of Kerria Targioni-Tozzetti from India, namely Kerria pennyae Ahmad & Ramamurthy sp. nov. on Schleichera oleosa from Orissa, Kerria dubeyi Ahmad & Ramamurthy sp. nov. on Ficus bengalensis from Bangalore and Kerria varshneyi Ahmad & Ramamurthy sp. nov. on Ziziphus mauritiana from Punjab are described and illustrated, and a key is provided to species of Kerria known from India.
Three new species of Kerria (Hemiptera: Coccoidea: Tachardiidae) from India
Zootaxa, 2013
Three new species of Kerria Targioni-Tozzetti from India, namely Kerria pennyae Ahmad & Ramamurthy sp. nov. on Schleichera oleosa from Orissa, Kerria dubeyi Ahmad & Ramamurthy sp. nov. on Ficus bengalensis from Bangalore and Kerria varshneyi Ahmad & Ramamurthy sp. nov. on Ziziphus mauritiana from Punjab are described and illustrated, and a key is provided to species of Kerria known from India.
Journal of Insect Science, 2014
The lac insects belong to the genus Kerria (Hemiptera: Coccoidea: Kerriidae) and are commercially exploited worldwide for the production of lac, which comes from their waxy test and has diverse industrial applications. The insects are maintained by the Indian Institute of Natural Resins and Gums as distinctive lines that are cultivated and commercialized in the lac producing areas of India. The lines are all considered to belong to the genus Kerria but without validation of their taxonomic characters, and their identity to species has not been ascertained. This study used single-factor analysis of variance and several multivariate analyses, such as principal component analysis, discriminant function analysis, and canonical discriminant analysis to explore the morphometrics of some of the adult female lac insect lines. The results have enabled the identification of some taxonomically significant characters in adult females, which has grouped the 32 lac insect lines studied into 15 species along with validation of the most significant characters. Distinctive grouping patterns for the species of Kerria have been brought out using morphometrics.
Academia Letters, 2021
The Indian lac insect, Kerria lacca (Kerr) family Lacciferidae (Kerriidae) and order Hemiptera is economically important insect exploited commercially for lac, a resin refined into shellac and other products. Natural scarlet dye obtained after purification is used as colouring agent. Its natural infestation was observed for the first time on Prosopis cineraria (L.) Druce in natural environment of Uttar Pradesh in Civil Lines (Lat.: 25.45678704, Long.: 81.83745539), Prayagraj. Natural infestation has also been observed on Calliandra surinamensis Benth. at Lajpat Rai Road (Lat.: 25.45678704, Long.: 81.83745539)and Ficus carica L. at Thornhill Road (Lat.: 25.45875352, Long.: 81.83767319) in the Prayagraj division of eastern Uttar Pradesh. Prosopis cineraria and Calliandra surinamensis is considered as plant having less commercial value but occurrence of lac on this plant in eastern Uttar Pradesh can be boon and a hope for economy of the region in near future and its commercial use is viable subsidiary occupation to agriculture. During study fairly good density of insect has been witnessed in Prayagraj district of eastern Uttar Pradesh indicative of better survivability of insect in the region for commercial exploitation.
Reproductive isolation in lac insects-Kerria lacca and Kerria chinensis
Indian Journal of Entomology, 2018
Lac insects belongs to the family Tachardiidae (=Kerridae) of the order Hemiptera, and superfamily Coccoidea. In this family, there are 99 species under 9 genera, of which 26 species under two genera occur in India. Natural populations of Kerria spp. are distributed throughout India and K. chinensis in the northeastern states is also cultivated to a certain extent. Cross breeding study done between lac insects, K. lacca and K. chinensis revealed that female cell weight was more in mated K. chinensis (14.5 and 29.6 mg) as compared to virgin K. chinensis (5.7 and 8.8 mg) in summer and rainy seasons, respectively. The physical growth of fertilized female indicated successful mating between the two species. Mated females secreted more resin compared to virgins; however, no embryonic development was observed in their ovaries and hence no young ones emerged from mated K. chinensis, indicating reproductive isolation. Therefore, it is inferred that K. lacca and K. chinensis are distinct species, which is corroborated with analyses using molecular markers. The ecological speciation is perhaps involved in K. chinensis during evolution.
Zootaxa, 2011
An account of the Sternorrhyncha recorded from Hong Kong, comprising approximately 485 species, is presented. This is primarily based upon voucher holdings in the collection of the Natural History Museum, London and it includes incompletely identified taxa. Also included are records based solely on published data. Host plant data are included where known and there are four appendices for quick cross-reference of names, groups and hosts. One new species in the Aleyrodidae is described, Rhachisphora takahashii sp. nov.. One new synonymy in the Aleyrodidae is proposed, Aleurocanthus cheni Young (1942) becoming a junior synonym of A. spiniferus (Quaintance, 1903) syn. nov.. Two nomenclatural changes in the Psylloidea are proposed: Colophorina hungtouensis Fang & Yang (1986) comb. nov. is transferred from Psylla; Macrohomotoma sinica Yang & Li (1984) is proposed as a junior synonym of M. gladiatum Kuwayama (1908), syn. nov.. One nomenclatural change in the Diaspididae (Coccoidea) is pro...
Oriental Insects, 2009
Within the scope of a survey for natural antagonists of the invasive lobate lac scale, Kondo & Gullan , several chalcidoid parasitoids were collected in their native regions. Th scale invaded from Asia into Florida, the Bahamas and was recently detected in Cuba (Schroer et al., 2008a). In Florida it threatens a great number of native plants and cultivated fruit trees (Pemberton, 2003). Chalcidoids were collected from species of southern Indian states of Karnataka and Tamil Nadu and from and species of Thailand, Malaysia, Singapore and Indonesia. Results on collection made from India during 2005-06 were recently published by Hayat (2007) and Schroer et al. (2008b). The encyrtids and aphelinids collected in 2007 from Thailand, Malaysia and Indonesia were passed on to the first author for species identification. The collected from Indonesia and Malaysia are described herein as a new species. The terminology follows Hayat (1998).
Adults and Þrst through Þfth instars of three species of Naucoridae in the subfamily Laccocorinae were collected from localities in Tamil Nadu and Karnataka states in southern India. SpeciÞcally,Heleocoris indicus(Montandon) andHeleocoris vicinus(Montandon) were collected from the vegetated margins of streams that contained no congeners.Pogonocaudina indicaSites & Zettel was collected from vertical rock surfaces at the type locality. All instars of these three species are described here. First instars of both species ofHeleocorisare immaculate, whereas subsequent instars are densely punctate. The Þrst instar ofP. indicahas pronounced dorsal tubercles with stout spines, whereas subsequent instars lack these structures. All instars ofP. indicahave a deep terminal cleft and dense fringe of hairs on the perimeter of the posterior abdominal segments. Second through Þfth instars of these three species can be distinguished based on relative length of the mesonotal wing pad compared with the exposed part of the metanotal lateral margin. KEY WORDS Nepomorpha, Naucoridae, Laccocorinae, India, nymph