Topic
Tegmen
About: Tegmen is a research topic. Over the lifetime, 129 publications have been published within this topic receiving 939 citations.
Papers published on a yearly basis
Papers
TL;DR: This group of 33 cases of SCSFO from tegmen or posterior fossa defects is characterized by certain clinical features, and meningitis was the initial manifestation in eight patients, and ultimately occurred in an additional four patients.
Abstract: Spontaneous cerebrospinal otorrhea (SCSFO) from tegmen or posterior fossa defects is uncommon. Twenty-nine cases have been detailed in the literature to date. We report an additional four cases from three patients. This group of 33 cases of SCSFO from tegmen or posterior fossa defects is characterized by certain clinical features. These patients are usually older adults (mean age 48 years, range 8 months to 80 years). Aural fullness with a serous appearing middle ear effusion, or clear otorrhea, often subsequent to tube myringotomy, are the usual initial symptoms. Meningitis was the initial manifestation in eight patients (24%), and ultimately occurred in an additional four patients (12%). The pathophysiologic basis for SCSFO from tegmen defects is discussed. Methods for diagnosing and treating CSF otorrhea from tegmen defects are reviewed.
119 citations
TL;DR: Two new species of the previously monotypic genus Eulophophyllum Hebard, 1922 are described, which is unique for the strongly widened media field of the tegmen, in which all branches of the media anterior plus radius sector are strongly curved and run anteriorally.
Abstract: Two new species of the previously monotypic genus Eulophophyllum Hebard, 1922 are described. All species of the genus known up until now occur in forested areas in Sabah, Borneo. The genus is unique for the strongly widened media field of the tegmen, in which all branches of the media anterior plus radius sector are strongly curved and run anteriorally. There is also a striking color difference between the sexes, with males uniformly green and females pink. The two new species E. lobulatum Ingrisch & Riede sp. n. and E. kirki Ingrisch & Riede sp. n. have large leaf-like expansions of the hind tibiae that are absent in E. thaumasium Hebard, 1922. They differ from each other in the number of main vein branches in the media field of the tegmen. Stridulation of E. lobulatum sp. n. consists of short double-clicks ranging from 6.5 to 8.5 kHz, repeated at longer intervals.
115 citations
TL;DR: Three new subgenera are proposed and four new species are described from Yunnan, China, suggesting that the separation among Phlugiolopsis species is recent.
Abstract: The relationships among the Phl ugiolopsis species are poorly understood. In this paper, three new subgenera are proposed and four new species are described from Yunnan, China. The microstructures of male stridulatory files are examined for selected species of Phlugiolopsis using scanning electron micrographs (SEM). Geometric morphometric study of the left tegmen for the genus Phlugiolopsis was carried out to demonstrate the effect of vicariance on species. Differences among species are minute, suggesting that the separation is recent. All examined specimens are deposited in the Museum of Hebei University (HBUM).
91 citations
TL;DR: Onysius Broun, 1886, is transferred from the endemic New Zealand Chalcodryidae to Promecheilidae, reducing the number of genera of the former to two (Chalcodrya and Philpottia).
Abstract: OnysiusBroun, 1886, is transferred from the endemic New Zealand Chalcodryidae to Promecheilidae, reducing the number of genera of the former to two (Chalcodrya and Philpottia). Onysius shares several adult characters with Promecheilidae, including the abdominal ventrites 3 and 4 not connate and the tegmen subdivided into a basale and apicale (larvae are unknown). A key to the world genera of Promecheilidae is included.
65 citations
TL;DR: A new species of the genus Criotettix zhejiangensis sp.
Abstract: A new species of the genus is described from Zhejiang, China in this paper. The new species Criotettix zhejiangensis sp. nov. is similar to Criotettix strivertexoides Zheng, Wei Li, 2009, but differs in antennae placed the lower margin of eye, head exserted above the pronotal surface, lateral keels in prozona slightly contracted backward, upper margin of pronotum not waved in lateral view, width of tegmen 1.2 times width of mid leg femur and lower side of hind femur not black. The new species is also similar to Criotettix strivertex Zheng, Wei Li, 2009, it differs from latter by head exserted above the pronotal surface, upper margin of pronotum not waved in lateral view, lower side of mid femur straight, width of tegmen 1.2 times width of mid leg femur and length of hind femur 3.1 times its width. The type specimens are deposited in the College of Life Sciences, Hebei University, Baoding, China.
59 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 10 |
| 2020 | 11 |
| 2019 | 5 |
| 2018 | 4 |
| 2017 | 3 |
| 2016 | 8 |