Abrderma gracilentum

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Xing, Changyue, Shih, Chungkun, Zhao, Yunyun, Ren, Dong (2016) New Earwigs in Protodiplatyidae (Insecta: Dermaptera) from the Middle Jurassic Jiulongshan Formation of Northeastern China. Zootaxa 4205 : 185 – 185, doi. Versioned wiki page: 2016-12-06, version 109793, https://species-id.net/w/index.php?title=Abrderma_gracilentum&oldid=109793 , contributors (alphabetical order): PlaziBot.

Citation formats to copy and paste

BibTeX:

@article{Xing2016Zootaxa4205,
author = {Xing, Changyue AND Shih, Chungkun AND Zhao, Yunyun AND Ren, Dong},
journal = {Zootaxa},
title = {New Earwigs in Protodiplatyidae (Insecta: Dermaptera) from the Middle Jurassic Jiulongshan Formation of Northeastern China},
year = {2016},
volume = {4205},
issue = {},
pages = {185 -- 185},
doi = {TODO},
url = {},
note = {Versioned wiki page: 2016-12-06, version 109793, https://species-id.net/w/index.php?title=Abrderma_gracilentum&oldid=109793 , contributors (alphabetical order): PlaziBot.}

}

RIS/ Endnote:

TY - JOUR
T1 - New Earwigs in Protodiplatyidae (Insecta: Dermaptera) from the Middle Jurassic Jiulongshan Formation of Northeastern China
A1 - Xing, Changyue
A1 - Shih, Chungkun
A1 - Zhao, Yunyun
A1 - Ren, Dong
Y1 - 2016
JF - Zootaxa
JA -
VL - 4205
IS -
UR - http://dx.doi.org/TODO
SP - 185
EP - 185
PB -
M1 - Versioned wiki page: 2016-12-06, version 109793, https://species-id.net/w/index.php?title=Abrderma_gracilentum&oldid=109793 , contributors (alphabetical order): PlaziBot.

M3 - doi:TODO

Wikipedia/ Citizendium:

<ref name="Xing2016Zootaxa4205">{{Citation
| author = Xing, Changyue, Shih, Chungkun, Zhao, Yunyun, Ren, Dong
| title = New Earwigs in Protodiplatyidae (Insecta: Dermaptera) from the Middle Jurassic Jiulongshan Formation of Northeastern China
| journal = Zootaxa
| year = 2016
| volume = 4205
| issue =
| pages = 185 -- 185
| pmid =
| publisher =
| doi = TODO
| url =
| pmc =
| accessdate = 2020-02-17

}} Versioned wiki page: 2016-12-06, version 109793, https://species-id.net/w/index.php?title=Abrderma_gracilentum&oldid=109793 , contributors (alphabetical order): PlaziBot.</ref>


Taxonavigation

Ordo: Dermaptera
Familia: Protodiplatyidae
Genus: Abrderma

Name

Abrderma gracilentum Xing, Shih & RenWikispecies linkPensoft Profile

  • Abrderma gracilentum Xing, Changyue, 2016, Zootaxa 4205: 185-185.

Diagnosis

Diagnosis. As for the genus due to monotypy.

Etymology

Etymology. The specific name of “ gracilentum ” refers to the shape of the cerci.

Materials Examined

China Daohugou Village

Description

Description: An adult female, dorsal and ventral aspect. Body medium-sized (excluding antenna and cercus) 17.4 mm long, covered with pubescence. Head: 1.4 mm long, 1.9 mm wide, subtriangular, small. Neck divided into anterior and posterior cervical sclerites, with anterior narrower than posterior. Ocelli present. Compound eye large, prominent and located near posterior margin of head. Mandible with two apical teeth, other teeth not visible. Left maxillary palpus with 11 segments preserved, right palpus preserved but not clear. Labrum semicircular with posterior margin straight. Cypeus approximately rectangular, 1.0 mm long, 0.2 mm wide. Antenna not preserved completely; first antennomere broader than others, pedicel longer than third antennomere. Pronotum approximately elliptical, 1.3 mm wide, 2.5 mm long; anterior and posterior margins each 2.1 mm wide, both convex; lateral margins rounded. Anterior margin of pronotum broader than posterior margin of head. Scutellum not present. Tegmen: Longitudinal veins strongly developed, 5.3 mm long, 2.5 mm wide, length/width ratio 2.1. Costal margin slightly arched, sutural margin straight, posterior margin apical. Tegmen extending slightly beyond second abdominal segment. Hind wing impression incomplete, only revealing a little uncovered by the tegmen. Abdomen 7.7 mm long, 3.3 mm wide; eight abdominal segments; cercus as preserved 4.1 mm long, length ratio of cercus/body 0.2, with segments but not clearly preserved except that second segment of cerci slightly shorter than first segment. Abdomen distally with external ovipositor, 2.4 mm long, slot present at the middle. Pygidium small. Fore femur thick and short, 1.3 mm long, 0.6 mm wide. Middle femur 1.7 mm long, 0.5 mm wide. Hind femur 2.0 mm long, 0.6 mm wide. Hind tibia 1.7 mm long, 0.3 mm wide. Hind tarsus pentamerous, segments 1‒4 horseshoe-shaped (Fig 3 D).

Discussion

Remarks.Perissoderma gen. nov. and Abrderma gen. nov. are assigned to Archidermaptera based on the following characters: ocelli present; tegmina with distinct but much reduced longitudinal venation; cerci long and multi-segmented. In contrast, Neodermaptera do not have ocelli; but have tegmina without venation and cerci forming heavy forceps without segmentation. They are also differentiated from taxa in Eodermaptera, which have venation in the tegmina and short and stout forcipate cerci without segmentation (Engel, 2003). These two new genera are assigned to Protodiplatyidae on the basis of the following characters: antenna filiform with 17 to 26 antennomeres, scape enlarged, pedicel at least as long as the third antennomere; ocelli present; abdomen with 8 visible segments in female; prominent, external ovipositor; and cerci long, slender and multi-segmented (Carpenter 1992, Xing et al. 2016).

Taxon Treatment

  • Xing, Changyue; Shih, Chungkun; Zhao, Yunyun; Ren, Dong; 2016: New Earwigs in Protodiplatyidae (Insecta: Dermaptera) from the Middle Jurassic Jiulongshan Formation of Northeastern China, Zootaxa 4205: 185-185. doi
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