Antennal sense organs of Phthiraptera (insecta). Scanning electron microscopy of several species of Anoplura

Cruz, M. D. Soler

doi:10.1016/0968-4328(94)00043-p

Cited by 7 publications

(2 citation statements)

References 9 publications

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“…Seven bristles were the only sensory structures identified on flagellomere 1. Similar sensilla have been described for several other members of Phthiraptera concentrated on the distal zone of the antennae; however, variation in number and position was observed (Clarke, 1990; Baker & Chandrapatya, 1992; Soler Cruz, 1995; Soler Cruz & Martín Mateo, 1996, 1998).…”

Section: Comparison Between Bl and Hlsupporting

confidence: 75%

Sensory features of the human louse antenna: new contributions and comparisons between ecotypes

Ortega-Insaurralde

Picollo

Barrozo

2020

Medical Vet Entomology

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Body and head lice are known to be exclusive ectoparasites of human hosts. Current genomic and transcriptomic data suggest that both louse types represent ecotypes of the same species. They exhibit morphological and physiological differences that probably arose from living in different biotopes. Sensory traits represent suitable candidates to be affected by environmental heterogeneity. Therefore, through scanning electron microscope studies, this study analysed and compared the sensory structures of both ecotypes' antennae. Seven types of sensory structures were identified in both ecotypes: bristles, tuft organs, pore organs, single pore and three morphotypes of sensilla basiconica. Notably, the single pore and the morphotypes of sensilla basiconica were described for the first time in the body louse antenna. This study's comparative analysis mainly revealed size differences across the sensory structures of the ecotypes. Bristles of the flagellomere 2 of the body louse antenna were longer than the head louse bristles. In addition, the pore organs of the head louse antenna presented a higher diameter than those of the body louse. The possible relevance of size differences regarding the biotopes exploited by the body louse and the head louse is discussed. Yet, physiological studies may help to fully understand the phenotypical differences of both ecotypes.

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Section: Comparison Between Bl and Hlsupporting

confidence: 75%

Sensory features of the human louse antenna: new contributions and comparisons between ecotypes

Ortega-Insaurralde

Picollo

Barrozo

2020

Medical Vet Entomology

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“…Phthiraptera have no free living stages and are all obligate ectoparasites found on almost all avians and approximately a quarter of all mammals (Smith 2000;Soler Cruz 1995). Lice are further divided into four groups namely Amblycera, Ischnocera, Rhyncophthirina (a monogeneric group found on elephants and warthog only), and Anoplura.…”

Section: Introductionmentioning

confidence: 99%

The micromorphology of the blesbuck louse <i>Damalinia (Damalinia) crenelata</i> as observed under the scanning electron microscope

Turner

2003

Koedoe

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The blesbuck is an important game animal on many game farms and reserves in South Africa. Damalinia crenelata, a biting louse, host-specific to the blesbuck, feed upon epidermal debris of this antelope, leading to severe skin irritation and dermatitis. Symptomatic scratching by the host aggravates these conditions. High infestations may lead to decreased population numbers. Live lice were collected from a blesbuck in the Rietvlei Nature Reserve and prepared for selectron microscopic investigation. Micrographs were recorded. The SEM investigation revealed several micromorphological features not previously described in D. crenelata. Besides the obvious anatomical differences in the reproductive organs of the male and female, several other differences were noted. The antennal flagellae showed morphological differences as well as certain features on the ventral surfaces of the head. Dorsally the forehead was markedly emarginated and showed an acute invagination (clypeo labral suture) in the pulvinal area. The ventral surface of the head clearly demonstrated the structures of the preantennal regions such as ventral carina, pulvinus, labrum, mandibles and clypeus. The epipharynx appeared as an underlying extension of the labrum. The rims of the clypeus were more raised and thickened in the female than in that of the male. The mandibles were not notched and were noted to be angular in shape. The three segments of each of the antennae of the male were thicker and more robust than than those of the female. This could suggest sexual dimorphism in this species. The sensilla basoconica comprised 10 pegs. Pit organs were seen within the pore organs. The prothorax and mesothorax were clearly distinguished. The abdominal segments showed six pairs of spiracles. The male and female terminalia were confirmed to be strongly sexually dimorphic. The three pairs of legs each terminated in a single, long and slender, claw.

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Antennal sense organs of Phthiraptera (Insecta). Scanning electron microscopy of the ‘pit organs’ of several species ofBovicola

Cruz

Mateo

1996

Micron

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Antennal sense organs of Phthiraptera (insecta). Scanning electron microscopy of several species of Anoplura

Cited by 7 publications

References 9 publications

Sensory features of the human louse antenna: new contributions and comparisons between ecotypes

Sensory features of the human louse antenna: new contributions and comparisons between ecotypes

The micromorphology of the blesbuck louse <i>Damalinia (Damalinia) crenelata</i> as observed under the scanning electron microscope

Antennal sense organs of Phthiraptera (Insecta). Scanning electron microscopy of the ‘pit organs’ of several species ofBovicola

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