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8 results for “Coccus hesperidum”
FIGURE 3 in A newly recognised species that has been confused with the global polyphagous pest scale insect, Coccus hesperidum Linnaeus (Hemiptera: Coccomorpha: Coccidae)
FIGURE 3. Adult female of Coccus praetermissus Lin & Tanaka, sp. n. ANT: antenna; AP: anal plate; DA: dorsal areolations; DMD: dorsal microduct; DS: dorsal seta; DT: dorsal tubercle; DTD: dorsal tubular duct; LG: leg; MP: multilocular pore; MS: marginal setae; PAP: preantennal pore; POP: preopercular pores; SP: spiracular pore; SSP: stigmatic spines; VMD: ventral microduct; VTD: ventral tubular duct. Scale bars: 200 µm for ANT, AP; 100 µm for DA, LG; 50 µm for SSP; 10 µm for other details.
FIGURE 2 in A newly recognised species that has been confused with the global polyphagous pest scale insect, Coccus hesperidum Linnaeus (Hemiptera: Coccomorpha: Coccidae)
FIGURE 2. The Maximum Clade Credibility (MCC) tree from analysis of the concatenated dataset (2827 bp). Specimen codes of Coccus hesperidum s. s. (apices of dorsal setae pointed) are in dark blue and those of C. praetermissus sp. n. (apices of dorsal setae bluntly rounded) are in light blue. The tree was rooted using C. penangensis. Branch support is indicated on internal branches (MP bootstrap/Bayesian posterior probability). Only bootstrap values ± 70% and posterior probabilities ± 0.95 are shown. The coloured squares under branches indicate that the branch was present in analyses of that gene. Branch support from individual genes are not shown within C. formicarii (Chinese and Taiwanese populations) and C. hesperidum s. s. Abbreviations as per Table 1.
FIGURE 1. Coccus hesperidum L. A in A newly recognised species that has been confused with the global polyphagous pest scale insect, Coccus hesperidum Linnaeus (Hemiptera: Coccomorpha: Coccidae)
FIGURE 1. Coccus hesperidum L. A. Mature adult females on papaya, Carica papaya, in Colombia. B. Young adult females and nymphs tended by Camponotus ants, in Brazil. Photographs by T. Kondo.
FIGURE 24. Coccus hesperidum Linnaeus, 1758. A in Review of the family Coccidae (Hemiptera: Coccomorpha) in Laos
FIGURE 24. Coccus hesperidum Linnaeus, 1758. A, population of females in life; B, slide-mounted adult female; C, antenna; D, ventral tubular ducts near mesocoxa; E, leg (Arrow indicates a tibio-tarsal articulatory sclerosis). Scale lines for B = 0.5 mm; C, E = 100 µm; D = 10 µm.
FIGURE 25. Coccus hesperidum Linnaeus, 1758 in Review of the family Coccidae (Hemiptera: Coccomorpha) in Laos
FIGURE 25. Coccus hesperidum Linnaeus, 1758, adult female, from Lin et al. (2013). A, marginal setae; B, dorsal tubercle; C, stigmatic spines; D, dorsal microduct; E, dorsal seta; F, dorsal tubular duct; G, preopercular pore; H, anal plates; I, multilocular disc-pore; J, anal ring; K, ventral seta; L, leg; M, ventral tubular duct; N, ventral microduct; O, spiracular disc-pore; P, antenna.
Data from: A newly recognised species that has been confused with the global polyphagous pest scale insect, Coccus hesperidum Linnaeus (Hemiptera: Coccomorpha: Coccidae)
Coccus hesperidum L. (Hemiptera: Coccomorpha: Coccidae), the type species of the soft scale genus Coccus L., the family Coccidae and the whole of the scale insects (Coccoidea), is a cosmopolitan plant pest. Using DNA sequence data and morphological comparisons, we determine that there is a distinct species that is morphologically very similar to C. hesperidum. Here, we describe the species as Coccus praetermissus Lin & Tanaka sp. n., based on adult female specimens from Australia, Malaysia and Thailand. The adult female of C. praetermissus sp. n. differs from C. hesperidum in having dorsal setae with bluntly rounded tips, whereas they are sharply pointed in C. hesperidum. A detailed description of the newly recognised species is provided, incorporating adult female morphology and DNA sequences from mitochondrial and nuclear loci. Our examination of slides from The Natural History Museum, London, and several Australian institutions indicates that C. praetermissus sp. n. has been confused sometimes with C. hesperidum s. s. These findings have potential relevance to plant biosecurity and quarantine because C. hesperidum is cosmopolitan whereas C. praetermissus sp. n., which is also polyphagous and the two species can share many host plants, currently appears to be more geographically restricted. Additionally, there is deep genetic divergence within C. praetermissus sp. n. that might indicate that it is a cryptic species complex, but wider geographic sampling is required to test this possibility.
FIGURE 4. Coccus hesperidum L in Carl Linnaeus and his scale insects (Hemiptera: Coccoidea)*
FIGURE 4. Coccus hesperidum L. Adult female.
Data from: A newly recognised species that has been confused with the global polyphagous pest scale insect, Coccus hesperidum Linnaeus (Hemiptera: Coccomorpha: Coccidae)
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