Sobre o hematofagismo da Clerada apicicornis e outros artropodos; sua importancia na transmissão da doença de Chagas

Lent, Herman

doi:10.1590/s0074-02761939000400008

Cited by 9 publications

(5 citation statements)

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“…Several other heteropteran groups have been reported to feed on blood to various degrees. Some rhypochromine Rhypochromidae (tribes Cleradini and Udeocorini) practise both facultative blood-feeding from vertebrates and kleptohaematophagy through feeding on engorged haematophages [ 165 , 166 , 167 , 168 ]. Minute pirate bugs (Anthocoridae) and non-triatomine assassin bugs are occasionally recorded to feed from vertebrates and are sometimes considered facultative blood-feeders (e.g., [ 164 ]).…”

Section: Diversification Of Venom Pharmacology In the Evolution Ofmentioning

confidence: 99%

Venoms of Heteropteran Insects: A Treasure Trove of Diverse Pharmacological Toolkits

Walker

Weirauch

Fry

et al. 2016

Toxins

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The piercing-sucking mouthparts of the true bugs (Insecta: Hemiptera: Heteroptera) have allowed diversification from a plant-feeding ancestor into a wide range of trophic strategies that include predation and blood-feeding. Crucial to the success of each of these strategies is the injection of venom. Here we review the current state of knowledge with regard to heteropteran venoms. Predaceous species produce venoms that induce rapid paralysis and liquefaction. These venoms are powerfully insecticidal, and may cause paralysis or death when injected into vertebrates. Disulfide-rich peptides, bioactive phospholipids, small molecules such as N,N-dimethylaniline and 1,2,5-trithiepane, and toxic enzymes such as phospholipase A2, have been reported in predatory venoms. However, the detailed composition and molecular targets of predatory venoms are largely unknown. In contrast, recent research into blood-feeding heteropterans has revealed the structure and function of many protein and non-protein components that facilitate acquisition of blood meals. Blood-feeding venoms lack paralytic or liquefying activity but instead are cocktails of pharmacological modulators that disable the host haemostatic systems simultaneously at multiple points. The multiple ways venom is used by heteropterans suggests that further study will reveal heteropteran venom components with a wide range of bioactivities that may be recruited for use as bioinsecticides, human therapeutics, and pharmacological tools.

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Section: Diversification Of Venom Pharmacology In the Evolution Ofmentioning

confidence: 99%

Venoms of Heteropteran Insects: A Treasure Trove of Diverse Pharmacological Toolkits

Walker

Weirauch

Fry

et al. 2016

Toxins

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“…The above cited authors all survey the literature exhaustively and we need not summarise existing evidence here. It should be noted, however, that so far as we know all the members of the largest subfamily, the Rhyparochrominael are seed feeders with one important exception: several genera of the Cleradini (sensu Stiil, 1874) are known to suck habitually the blood of vertebrate animals including man (see Lent, 1939). Vertebrate blood-feeding appears to be the normal condition in the above group, as we have obtained masses of clotted blood from additional genera not yet reported in the literature as blood suckers.There are published records of other Rhyparochrominae occasionally preying upon insect hosts, but the existing records are either very doubtful or based upon casual observations rather than conclusive evidence that the Rhyparochromines can actually sustain themselves and complete development upon a strictly animal diet (see, for example, Thomas, 1954Thomas, , 1955.…”

mentioning

confidence: 99%

mentioning

confidence: 99%

Ethiopian Lygaeidae Iv: A New Predatory Lygaeid From Africa With a Discussion of Its Biology and Morphology (Hemiptera: Heteroptera)

Slater

Carayon

1963

Proceedings of the Royal Entomological Society of London. Serie

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THANKS to the work of Hoffman (1932), Putshkov (1956) and Sweet (1960), as well as to numerous less extensive observations, it is today generally accepted that the majority of Lygaeidae are phytophagous and that m6st of them feed upon seeds. The above cited authors all survey the literature exhaustively and we need not summarise existing evidence here. It should be noted, however, that so far as we know all the members of the largest subfamily, the Rhyparochrominael are seed feeders with one important exception: several genera of the Cleradini (sensu Stiil, 1874) are known to suck habitually the blood of vertebrate animals including man (see Lent, 1939). Vertebrate blood-feeding appears to be the normal condition in the above group, as we have obtained masses of clotted blood from additional genera not yet reported in the literature as blood suckers.There are published records of other Rhyparochrominae occasionally preying upon insect hosts, but the existing records are either very doubtful or based upon casual observations rather than conclusive evidence that the Rhyparochromines can actually sustain themselves and complete development upon a strictly animal diet (see, for example, Thomas, 1954Thomas, , 1955. Therefore the case discussed in this paper seems particularly important as the first unquestionable case of a zoophagous Rhyparochromine known, other than the haematophagous Cleradini. Miealdus nidulus sp. n.Head, pronotum, scutellum, apex of corium and entire venter, with exception of white posterior lobe of metapleuron, dull reddish-brown ; posterior lobe of metapleuron, corium and clavus white ; most of wing mesad of cubital vein and all of membrane transparent, hyaline ; appendages nearly uniformly pale testaceous, usually lightly suffused with brownish a t bases of tibiae and apices of femora ; third antennal segment dark except a t extreme basal area, strongly contrasting with pale proximal and distal segments, basal segment narrowly dark at base; greater part of body surface possessing a pruinose bloom ; pronotum and scutellum with a few short scattered inconspicuous setae, those on head more thickly placed and conspicuous ; vertex with numerous closely spaced punctures ; pronotum and scutellum with prominent regular, widely separated pound punctures, those on corium confined to area laterad of radius and as two definite rows along claval suture, clavus with a closely set row of punctures adjacent to claval suture and a second row of well separated punctures located centrally.Eyes large and prominent, occupying most of lateral surface of head, in contact with anterolateral pronotal angles but not stalked or greatly produced, tylus reaching midway to apex of 1 Slater (1957) maintained that Megalonotinae should replace Rhyparochrominae as the correct name for this taxon. This was baaed upon the belief that Rhyparochromus Curtis was a junior homonym of Rhyparochrmw Hahn. Curtis' genus appears not to have been independently described as believed by China (1943) and Rhyparochrominae therefore can be use...

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“…Others are predatory (Geocorinae) and a few suck vertebrate blood (Cleradini)'. Blood-sucking by Cleradini has been reported by LENT (1939), DA COSTA LIMA (1940) and CORREÂ (1956). These bugs comprise a tribe of the otherwise seed-feeding Rhyparochrominae, the only exception being the predatory Mizaldus nidulus (SLATER & CARAYON, 1963).…”

Section: Pentatomomorphamentioning

confidence: 86%

Evolutionary Trends in Heteroptera. Part II. Mouthpart-Structures and Feeding Strategies

1979

Systematic Biology

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Sobre o hematofagismo da Clerada apicicornis e outros artropodos; sua importancia na transmissão da doença de Chagas

Cited by 9 publications

References 0 publications

Venoms of Heteropteran Insects: A Treasure Trove of Diverse Pharmacological Toolkits

Venoms of Heteropteran Insects: A Treasure Trove of Diverse Pharmacological Toolkits

Ethiopian Lygaeidae Iv: A New Predatory Lygaeid From Africa With a Discussion of Its Biology and Morphology (Hemiptera: Heteroptera)

Evolutionary Trends in Heteroptera. Part II. Mouthpart-Structures and Feeding Strategies

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