Ultrastructure of the male terminalia of Cochliomyia hominivorax and C. macellaria

Leite, Antônio Cesar Rios

doi:10.1590/s0074-02761995000400008

Cited by 7 publications

(9 citation statements)

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“…Regarding males, the morphological features of the genitalia, in particular the components of the aedeagus, show distinctive characters. The prominent, bilobed vesica observed in this fly show similarity with those of some other chrysomyine blow flies, C. pinguis, C. defixa (Senior-White et al 1940), and C. bezziana (Spradbery and Sands 1976), but are markedly different from blow flies such as Cochliomyia hominivorax, Cochliomyia macellaria (Leite 1995), or Lucilia cuprina (Merritt 1989). However, the thorny appearance of the juxta in this study was similar to that previously described as the ventrolateral process in C. hominivorax (Leite 1995).…”

Section: Discussionsupporting

confidence: 57%

“…With regard to the specific observation of the cercus of male C. megacephala (see Figs. 2, 3, and 4), the abrupt truncation at the terminal end differs from those shown for other blow flies via SEM like for C. hominivorax (Leite 1995), or in illustrations of many other blow fly species like Calliphora fulviceps van der Wulp, Calliphora pattoni Aubertin, Calliphora vicina Robineau-Desvoidy [=C. erythrocephala (Meigen)], Calliphora vomitoria (Linnaeus), Chrysomya albiceps (Wiede- Fig.…”

Section: Discussionmentioning

confidence: 88%

“…4) was similar to the illustrations published by Senior-White et al (1940) covering C. bezziana, C. defixa, C. pinguis, C. phaonis, Lucilia sericata (Meigen), and Lucilia porphyrina (Walker). As has been indicated by many researchers, the features of the cercus and surstylus are often used in the morphological identifications of insects and flies (Senior-White et al 1940;Leite 1995).…”

Section: Discussionmentioning

confidence: 99%

“…Examples of this are provided by investigations under light microscopy of Chrysomya bezziana Villeneuve (Spradbery and Sands 1976); Chrysomya pinguis (Walker), Chrysomya defixa (Walker) (Kurahashi et al 1997); Aldrichina (=Calliphora) grahami (Aldrich) (Hori 1960); Calliphora pubescens Macquart and Calliphora testaceifacies Macquart (Norris 1996); and Onesia accepta (Malloch) (Norris 2002); while scanning electron microscopic (SEM) studies have been performed on Lucilia cuprina (Wiedemann) (Clift and McDonald 1973;Merritt 1989), Lucilia sericata (Meigen) (Lewis and Pollock 1975), Cochliomyia hominivorax (Coquerel), Cochliomyia macellaria (Fabricius) (Leite 1995), and Chrysomya nigripes Aubertin (Ngern-Klun et al 2007). Most of these studies have involved the application of the information gained to taxonomic identification issues.…”

Section: Introductionmentioning

confidence: 99%

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Fine structure of the reproductive system of Chrysomya megacephala (Diptera: Calliphoridae): the external sexual organ

et al. 2008

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The fine structure of the reproductive system of Chrysomya megacephala (Fabricius), a blow fly species of medical importance, was studied using scanning electron microscopy (SEM) to contribute detailed morphological information on the external sexual organs or genitalia of this species. Analysis of the male genitalia or hypopygium revealed that the epandrium is a broad organ resembling a crescent shape, while the ejaculatory apodeme and aedeagal apodeme show similarity in their lengths. The cercus is significantly longer than the surstylus with its apical end being more or less rounded. Dense patches of long bristles, morphologically similar to the sensilla chaetica and sensilla trichodea, were found along the lower half of the cercus. The surstylus has a stout triangular shape, and the proximal half is greatly endowed with sensilla thought to be sensilla chaetica and sensilla trichodea. The aedeagus per se is prominent and has a clavate shape formed by the base theca and elongated phallus. The vesica of the phallus is a smooth bilobed structure, which curves inward. The juxta and juxta process are armed with many rows of strong spines resembling thorns in their appearance. The harpe is slender, recurved anteriorly, and distally pointed like a sickle. Regarding the female genitalia or ovipositor, SEM observation of the supraanal plate revealed it to be sclerotized and more or less triangular-shaped, lying between a pair of short cerci. Several types of sensilla were found on the supraanal plate, subanal plate and cercus, including the sensilla trichodea, sensilla basiconica, sensilla placodea, and probably, sensilla styloconica. The possible functions of sensilla distributed in particular regions of the fly genitalia are discussed.

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Section: Discussionsupporting

confidence: 57%

Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fine structure of the reproductive system of Chrysomya megacephala (Diptera: Calliphoridae): the external sexual organ

et al. 2008

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“…Leite (1995) described the ultrastructure of male terminalia of the screwworms, Cochiliomyia hominivorax and C. macellaria. Antennal sensilla of medically important blow flies have been examined in Lucilia (=Phaenicia) sericata (Greenberg 1970), Chrysomya megacephala, Chrysomya rufifacies, C. nigripes, and Lucilia cuprina (Sukontason et al 2004), and C. hominivorax (Fernandes et al 2004), whereas the prestomal teeth of C. megacephala, C. rufifacies, C. nigripes, Chrysomya pinguis, Chrysomya villeneuvi, Chrysomya chani and L. cuprina have all been described by Sukontason et al (2003bSukontason et al ( , 2005.…”

Section: Introductionmentioning

confidence: 99%

Fine structure of Chrysomya nigripes (Diptera: Calliphoridae), a fly species of medical importance

et al. 2007

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The fine structure of Chrysomya nigripes Aubertin, a blow fly species of medical importance, is presented using scanning electron microscopy (SEM) to contribute information on the morphology of the adult of this fly species. The surface of the dome-shaped ommatidia exhibits a microscopic granulose appearance. The palpus is equipped with small sensilla basiconica and sensilla chaetica, which provide sensory reception for detecting environmental information. At the apex of the mouthparts, the labellum is endowed with large numbers of sensilla trichodea and basiconic-like sensilla of variable length. The anterior (mesothoracic) spiracle is elliptical in shape and covered with extensively ramified setae except for a small dorsal aperture. The posterior (metathoracic) spiracle is shaped like a rounded isosceles triangle and covered by two valves of unequal size. The larger valve covers the upper approximately 2/3 of the spiracular opening, whereas the smaller valve covers the lower approximately 1/3 of the opening. Extensively ramified setae line and cover the valves over the entire spiracle. SEM analyses of the haltere knob and the prosternal organs, located adjacent to the cervical sclerites, revealed a striking resemblance of the morphological features of their sensilla. Each sensillum emanates from a cuticular ring, is approximately 12-15 mum in length, has a smooth surface, and terminates in a sharp tip. Various types of sensilla were associated with the ovipositor including sensilla trichodea, sensilla basiconica, sensilla placodea and probably sensilla styloconica. The possible function of sensilla distributed in particular regions of the fly integument is discussed.

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Fine structure of Delia platura (Meigen) (Diptera: Anthomyiidae) revealed by scanning electron microscopy

Wang

Yang

Liu

et al. 2014

Microscopy Res & Technique

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Delia platura (Meigen) is a phytophagous fly that can cause significant crop losses. To obtain a better understanding of the external morphology of this species, adult D. platura is studied using scanning electron microscopy. Organs or structures that are important for taxonomy, such as the compound eyes, spiracles, pulvilli, wings, and genitalia are highlighted to complement previous description based on light microscope. Mesothoracic and metathoracic spiracles of D. platura that provide efficiency in preventing entrance of fine materials or dust into the tracheal system are morphologically different. In addition, the elongate-oval pulvillus is densely covered with tenent setae with spoon-like tip, which can increase the number of contact points for attachment to a surface. Four types of sensilla are observed on the male genitalia of D. platura including: trichoid sensilla, chaetic sensilla, three subtypes of campaniform sensilla, and basiconic sensilla. Long bristles and microtrichiae are observed on the female genitalia of D. platura. The possible function of sensilla located in the genitalia of D. platura is discussed. Microsc. Res. Tech. 77:619-630, 2014. © 2014 Wiley Periodicals, Inc.

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Ultrastructure of the male terminalia of Cochliomyia hominivorax and C. macellaria

Cited by 7 publications

References 0 publications

Fine structure of the reproductive system of Chrysomya megacephala (Diptera: Calliphoridae): the external sexual organ

Fine structure of the reproductive system of Chrysomya megacephala (Diptera: Calliphoridae): the external sexual organ

Fine structure of Chrysomya nigripes (Diptera: Calliphoridae), a fly species of medical importance

Fine structure of Delia platura (Meigen) (Diptera: Anthomyiidae) revealed by scanning electron microscopy

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