Tmeticus ornatus (Emerton, 1914),

Marusik, Yuri M. & Koponen, Seppo, 2010, A review of the Holarctic genus Tmeticus Menge, 1868 (Araneae, Linyphiidae), with a description of a new genus, ZooKeys 59, pp. 15-37: 26-27

publication ID

http://dx.doi.org/10.3897/zookeys.59.508

publication LSID

lsid:zoobank.org:pub:0D722BFB-48E1-43BB-81F3-7CF5AF2894CE

persistent identifier

http://treatment.plazi.org/id/DEBB7ED6-8B15-BF02-CB95-BE7855538D0A

treatment provided by

ZooKeys by Pensoft

scientific name

Tmeticus ornatus (Emerton, 1914)
status

 

Tmeticus ornatus (Emerton, 1914)  Figs 1721 –2245– 485154

Gongylidium ornatus  Emerton 1914: 263, pl. 8, f. 3 (♂).

Tmeticus ornatus  : Bishop and Crosby 1935: 227, pl. 18, f. 22-26 (♂♀).

Tmeticus ornatus  : Paquin and Dupérré 2003: 122, f. 1284-1286 (♂♀).

Material examined.

CANADA: 4♂ 4♀ (ZMMU), Saskatchewan, Lady Lake, sedge tops - flooded marsh, 13-15.04.1971 (D.J. Buckle); 3♂ 3♀ (ZMUT), same locality, marsh, late April, 1978 (J.V. Buckle).

Diagnosis.

Differs from Tmeticus affinis  , which also occurs in the Nearctic Region, by the carapace colour (black cephalic region and red-orange thoracic area in Tmeticus ornatus  , carapace uniformly brown in Tmeticus affinis  ). The males are easily separated by their tibial apophyses (one apophysis with a claw-like processes in Tmeticus affinis  and two separate apophyses in Tmeticus ornatus  ); the females have distinctly different epigynes.

Description.

♂ 2.5-3.3, ♀ 2.8-35. TmI 0.73-0.78. Carapace orange with darker cephalic region. Abdomen dark. Palp as in Figs 45-46, 51, 54. Epigyne as in Figs 17, 47-48.

Distribution.

This species has a trans-Nearctic distribution, recorded from British Columbia to Quebec and south to New York ( Buckle et al. 2001). It does not occur north of 55°N and has a more southern distribution in comparison to the Palaearctic Tmeticus affinis  , Tmeticus tolli  and Tmeticus nigriceps  .

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Linyphiidae

Genus

Tmeticus