Muscles and nerves of the posterior abdomen and genitalia of male Periplaneta americana (L.) (Dictyoptera : Blattidae)

Pipa, Rudolph L.

doi:10.1016/0020-7322(88)90025-6

Cited by 9 publications

(12 citation statements)

References 12 publications

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“…Studies of the nymphal development in blattodeans have variously found lobe vla to be a median element (Snodgrass 1937) or a right element (Qadri 1940), the latter hypothesis being based on inclusion of younger nymphs than in the former. However, the innervation of lobe vla through nerves of the left side only (Pipa 1988) strongly suggests this part to belong to the left side of the body. The same results from two aberrant male cockroaches with bilaterally symmetrical phallic organs, one having a left phallomere plus a ventral phallomere on each side (in a mirror-imaged fashion), the other one having a typical right phallomere on each side (in a mirror-imaged fashion) but no ventral phallomere (K.-D. Klass unpubl.…”

Section: Resultsmentioning

confidence: 99%

Manual of praying mantis morphology, nomenclature, and practices (Insecta, Mantodea)

Brannoch¹,

Frank²,

Rivera³

et al. 2017

107

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This study provides a comprehensive review of historical morphological nomenclature used for praying mantis (Mantodea) morphology, which includes citations, original use, and assignment of homology. All referenced structures across historical works correspond to a proposed standard term for use in all subsequent works pertaining to praying mantis morphology and systematics. The new standards are presented with a verbal description in a glossary as well as indicated on illustrations and images. In the vast majority of cases, originally used terms were adopted as the new standard. In addition, historical morphological topographical homology conjectures are considered with discussion on modern interpretations. A new standardized formulation to present foreleg femoral and tibial spines is proposed for clarity based on previous works. In addition, descriptions for methods of collection, curation, genital complex dissection, and labeling are provided to aid in the proper preservation and storage of specimens for longevity and ease of study. Due to the lack of consistent linear morphometric measurement practices in the literature, we have proposed a series of measurements for taxonomic and morphological research. These measurements are presented with figures to provide visual aids with homologous landmarks to ensure compatibility and comparability across the Order. Finally, our proposed method of pinning mantises is presented with a photographical example as well as a video tutorial available at http://mantodearesearch.com.

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Section: Resultsmentioning

confidence: 99%

Manual of praying mantis morphology, nomenclature, and practices (Insecta, Mantodea)

Brannoch¹,

Frank²,

Rivera³

et al. 2017

107

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“…Second, however, there is apparently no uniform pattern of bisegmental innervation of the ventral muscles IX shared within lower-grade Pterygota, but the nerve supply is more diverse and, in addition, more complex. In Periplaneta americana L. (Pipa, 1988) the muscle is supplied from a plexus formed by connections between the dorsal nerve IX, the presumed dorsal nerve X, and the transverse nerve X (muscles &*, T*, nerves 4A*, 5A*, 2-X* of Pipa, 1988: figs 7, 8; for identification of components see in Klass, 2000: 251ff, table 1). Such a connection between a dorsal nerve and the succeeding transverse and dorsal nerves is peculiar to the postgenital abdomen and has no counterpart among the anastomoses in the mid-abdominal segments of Periplaneta (Klass, 1999: figs.…”

Section: Internal Ventral Muscles Spanning Segment IX and Intrasegmenmentioning

confidence: 98%

“…Periplaneta americana (L.) (2A* connecting 3A1* and 2-VIII* in Pipa, 1988: figs 6, 9). Another nerve pair arising with a common stem from the posterior face of ganglion 7-11G may represent 9T or 1OT (compare Pipa, 1988: fig. 8, Z I X * =9T, 2-X* = 1oT; Seabrook, 1968: fig.…”

Section: Central Componentsmentioning

confidence: 99%

The female abdomen of the viviparous earwig Hemimerus vosseleri (Insecta: Dermaptera: Hemimeridae), with a discussion of the postgenital abdomen of Insecta

Klass

2001

Zoological Journal of the Linnean Society

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I'he viviparous, epizoic African earwigs of the genus Hemimerus are currently regarded as the sister taxon of the remaining Dermaptera (Forficulina). Exoskeleton, musculature, and part of the nervous system of the female abdomen, from segment IV on, are described. The morphological interpretation and homology relations of most components are discussed, using previous and original data on Forficulina, Zygentoma, Ephemeroptera, Orthoptera and Dictyoptera as a comparative framework. In the mid-abdominal segments some interesting similarities with Zygentoma are indicated. Focal issues in the postgenital abdomen are the terminal dorsal sclerites, the cercal muscles, and the paraprocts and associated muscles. Earlier hypotheses on the dermapteran postabdomen (opisthomere and pseudocercus hypotheses) and results from ontogenetic studies are scrutinized. Some interesting features detected in female Hemimems are the immobilization of terga VIII-X by means of a thick internal cuticle layer, the lack of dorsal muscles on these terga, the shift of some insertions of cercal and rectal muscles from tergum X to tergum IX, and minute pits on the venters IX and X that could be spiracle vestiges. Some of these features occur also in other Dermaptera. Some abdominal characters suggest that Hemimerus is nested within the Forficulina. The lack of the clasper-shape in the cerci is not a strong argument against this.

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“…The muscles 49 and 50 are homologous with the phallomero‐sternal muscles of Blattaria and Mantodea ( s1 ‐ s14 in Klass 1997). In Periplaneta americana these muscles fall into two groups that are supplied by the ventral nerve IX or by the phallic nerve, respectively (nerves 4B and 5C in Pipa 1988). Those supplied by ventral nerve IX are probably the external ventral muscles IX; the morphological nature of the other group is unresolved ( Klass in press a).…”

Section: Discussionmentioning

confidence: 99%

“…From the posterior face of G7–11 originates a stout pair of nerves c , whose branches supply the segments IXff and are listed in the following. At least two further pairs of transverse nerves, IX and X, are expected to be included in this hindmost part of the nervous system (see Pipa 1988 for the cockroach Periplaneta americana [Linnaeus, 1758]), but these could not be specified. The basalmost branch d of nerve c is the dorsal nerve IX; it sends three basal rami e , f , and g to the posterior, whose course is described below.…”

Section: Description Of Postabdomenmentioning

confidence: 99%

The male postabdomen of Stolotermes inopinus: a termite with unusually well‐developed external genitalia (Dictyoptera: Isoptera: Stolotermitinae)

Klass¹,

Thorne²,

Lenz³

2000

Acta Zoologica

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 Abstract Klass, K.-D., Thorne, B. L. and Lenz, M. 2000. The male postabdomen of Stolotermes inopinus : a termite with unusually well-developed external genitalia (Dictyoptera: Isoptera: Stolotermitinae). -Acta Zoologica (Stockholm) 81 : 121-130Stolotermes inopinus has large external male genitalia (phallic lobe), which contrast with the small genital papillae or lack of external genitalia of other Isoptera. As in the genital papilla of Mastotermes darwiniensis , a ventral sclerite pair is present, the gonopore is located ventroterminally on the phallic lobe, and the genital area is entirely symmetrical -suggesting that this may be the groundplan condition of Isoptera. The relations of the phallic lobe to surrounding components like the subgenital plate, paraprocts, and certain muscles and nerves indicate that the lobe of S. inopinus is homologous with the phallomeres of other Dictyoptera. The bilateral symmetry and simple structure, however, are in strong contrast to the asymmetry and high complexity found in male genitalia of Blattaria and Mantodea. The postabdominal nervous system of S. inopinus resembles that of the cockroach Periplaneta americana . Indications are given that the Stolotermitinae are related to the Kalotermitidae, Rhinotermitidae, and Termitidae rather than to the Termopsinae.

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Muscles and nerves of the posterior abdomen and genitalia of male Periplaneta americana (L.) (Dictyoptera : Blattidae)

Cited by 9 publications

References 12 publications

Manual of praying mantis morphology, nomenclature, and practices (Insecta, Mantodea)

Manual of praying mantis morphology, nomenclature, and practices (Insecta, Mantodea)

The female abdomen of the viviparous earwig Hemimerus vosseleri (Insecta: Dermaptera: Hemimeridae), with a discussion of the postgenital abdomen of Insecta

The male postabdomen of Stolotermes inopinus: a termite with unusually well‐developed external genitalia (Dictyoptera: Isoptera: Stolotermitinae)

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