The Immature Stages of Aedes Infirmatus Dyar and Knab with Notes on Related Species (Diptera: Culicidae)1

Breland, Osmond P.

doi:10.1093/aesa/44.3.362

Cited by 2 publications

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“…The comb scales feature basal denticles, according to Ribeiro and Ramos (1999). According to Breland (1951), the shape of the comb scales was the only characteristic that was determined to be only partially reliable in identifying the larvae of Ae. trivittatus , Ae.…”

Section: Discussionmentioning

confidence: 99%

“…Research on the morphology of the different larval body regions, including the mouth brushes, antenna, preclypeal spines, compound eye, mentum, comb spines, pecten teeth, siphon tube, and anal papilla, has been reported by several different researchers, including Barruad (1934) and Abdel‐Malek (1949) for Ae . trivittatus , Breland (1951) for Ae . infirmatus , Bohart (1954) for California Aedes , Snodgrass (1959) and Clements (1963) for Ae .…”

Section: Introductionmentioning

confidence: 99%

“…has been reported by several different researchers, including Barruad (1934) and Abdel-Malek (1949) for Ae. trivittatus, Breland (1951) for Ae. infirmatus, Bohart (1954) for California Aedes, Snodgrass (1959) and Clements (1963) for Ae.…”

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confidence: 99%

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Identification of fourth‐instar larvae of Aedes albopictus (Skuse) (Diptera: Culicidae) employing scanning electron microscopic tool

Yamany,

Abdel‐Gaber

2024

Microscopy Res & Technique

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Aedes albopictus is a vector of numerous viruses in tropical and subtropical regions worldwide, including encephalitis and dengue fever. Although the identification keys depend exclusively on the characteristics of the fourth larval instar, the studies were carried out using scanning electron microscopy (SEM) on the morphology of Ae. albopictus are still insufficient, and more research is required. Therefore, the purpose of this study was to present a comprehensive description of Ae. albopictus mosquitoes based on the morphological features of their fourth‐instar larvae to distinguish them from other mosquito species. Antennae, feeding mouth brushes, mandibles, maxillae, labia, comb scales, anal papillae, siphon, respiratory spiracles, and pecten teeth were among the morphological features specifically described using SEM. The sensilla trichoidea and the sensilla basiconica are the sensory spicules found on the antennal integument. The labrum is a tessellated membrane with two movable brushes on the sides and one middle brush. The mandibles have four sellar setae on the anterolateral side, and the maxillae, which have a thumb‐like structure and a palp located laterally and about four‐fifths of the way from the maxillary brush base to the maxillary notch, are the articulating appendages. On the apex of the palp, there are five sensilla. The eighth abdominal segment is a tiny pentagonal structure with 12 comb scales laterally and a respiratory siphon dorsally. The siphon has two rows of pectin teeth, with 12 teeth per row. Four pairs of siphonal tufts and five perispiracular lobes surround the respiratory spiracles. The anal segment has four anal papillae, a ventral brush, a dorsal brush, and an incomplete saddle. The findings demonstrate that the fourth‐instar larvae of Ae. albopictus have distinctive morphological features, which are crucial for understanding their key characteristics and identifying them, preventing inaccurate identification, and facilitating the control of diseases transmitted by the mosquito vector.Research Highlights A detailed description of various taxonomical interest structures for the fourth‐instar larvae of Aedes albopictus is included in this study. Scanning electron microscopy is considered a helpful technique for identifying Ae. albopictus larvae in their fourth instar.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Identification of fourth‐instar larvae of Aedes albopictus (Skuse) (Diptera: Culicidae) employing scanning electron microscopic tool

Yamany,

Abdel‐Gaber

2024

Microscopy Res & Technique

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Studies on Mosquito Larvae: II. The First-stage Larvae of North American Culicidae and of World Anophelinae

Dodge

1966

Can Entomol

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First instars of 93 North American species of mosquitoes are studied and 56 are illustrated, 41 for the first time. Generic differences are well marked in this instar and nearly all species are separable.Two keys to the 11 North American genera are presented; the first is constructed to show similarities between first and later instars. Each genus is described and keyed to species, and notes are given on each species. A supplementary key to the species of the southeastern states is designed for the use of a binocular microscope with magnification up to 60 ×.Specific and generic differences are as well marked in the first as in the fourth instar. Identifications are as easy or as difficult in the first as in the fourth instar, though usually based on different characters.An expanded key to the North American species of Aedes, incorporating those previously treated by Bohart and by Price, is attempted. The key reveals several species complexes which have not been discerned from other stages of the life cycle, namely, Aedes canadensis, nigromaculis, punctor, stimulans infirmatus and trivittatus.A key to the first instars of the 37 species of the world-wide Anophelinae is presented, on the basis of published descriptions and figures of the exotic species.

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The Immature Stages of Aedes Infirmatus Dyar and Knab with Notes on Related Species (Diptera: Culicidae)1

Cited by 2 publications

References 2 publications

Identification of fourth‐instar larvae of Aedes albopictus (Skuse) (Diptera: Culicidae) employing scanning electron microscopic tool

Identification of fourth‐instar larvae of Aedes albopictus (Skuse) (Diptera: Culicidae) employing scanning electron microscopic tool

Studies on Mosquito Larvae: II. The First-stage Larvae of North American Culicidae and of World Anophelinae

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