الأسماء في صفحات التنقل
Trachelas tranquillus is a common small spider (female length 6.8 to 10 mm, male length 5 to 6.1 mm) in the eastern United States. It has a reddish brown cephalothorax that is covered with tiny punctures above and below. The abdomen is pale white to yellow with a darker stripe extending half way down the midline of the top surface of the abdomen. The anteriormost (forward) two pairs of legs have a reddish brown color similar to that of the cephalothorax while the more posterior (rearward) legs are colored like the abdomen and less stout than the anterior legs.
Trachelas tranquillus, which does not build a web, is found in leaf litter in the summer and fall, but often turns up indoors during these seasons as well (occasional bites from these spiders are said to sometimes result in secondary infections, perhaps due to their habit of feeding on dead arthropods, but it is not clear how well founded these reports are). It occurs from New England and adjacent Canada south to northern Alabama and Georgia and west to Minnesota and Kansas. Within this range, the slightly smaller but very similar T. similis can be distinguished under magnification by examining the spacing of the anterior eyes and the height of the clypeus; T. deceptus (formerly known as Meriola decepta) is much smaller and has the posterior row of eyes straight rather than recurved (a recurved row has the median eyes farther forward than the lateral eyes). Although the genus Trachelas was formerly placed in the subfamily Corinninae within the family Clubionidae, the Corinninae is now widely treated as a family, Corinnidae.
(Comstock and Gertsch 1948; Kaston 1978; Howell and Jenkins 2004; Ubick and Richman 2005)
Trachelas tranquillus, the broad-faced sac spider, is a species of true spider in the family Trachelidae. It is found in the United States and Canada.[1][2][3][4]
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Broad faced sac spider (Trachelas tranquillus) dorsal view Trachelas tranquillus, the broad-faced sac spider, is a species of true spider in the family Trachelidae. It is found in the United States and Canada.
Broad-faced sac spider, Trachelas tranquillus
Trachelas tranquillus est une espèce d'araignées aranéomorphes de la famille des Trachelidae[1].
Cette espèce se rencontre aux États-Unis au New Hampshire, au Massachusetts, au Connecticut, dans l'État de New York, au New Jersey, en Pennsylvanie, au Maryland, en Virginie, en Virginie-Occidentale, en Caroline du Nord, en Géorgie, en Alabama, au Tennessee, en Ohio, en Indiana, au Michigan, au Minnesota, en Iowa, en Illinois, au Missouri, en Arkansas, au Texas, en Oklahoma et au Kansas et au Canada en Ontario et en Nouvelle-Écosse[1],[2]. Elle a été introduite en Utah et en Arizona[3]. En septembre 2018, elle a été découverte pour la première fois au Québec, dans la ville de Montréal[4].
Les mâles mesurent 5,54 mm en moyenne et les femelles 7,69 mm[3].
Trachelas tranquillus est une espèce d'araignées aranéomorphes de la famille des Trachelidae.
Trachelas tranquillus is een spinnensoort in de taxonomische indeling van de pantserzakspinnen (Corinnidae).[1]
Het dier behoort tot het geslacht Trachelas. De wetenschappelijke naam van de soort werd voor het eerst geldig gepubliceerd in 1847 door Nicholas Marcellus Hentz.
Bronnen, noten en/of referenties
Trachelas tranquillus là một loài nhện trong họ Trachelidae.[1]
Loài này thuộc chi Trachelas. Trachelas tranquillus được Nicholas Marcellus Hentz miêu tả năm 1847.
Trachelas tranquillus là một loài nhện trong họ Trachelidae.
Loài này thuộc chi Trachelas. Trachelas tranquillus được Nicholas Marcellus Hentz miêu tả năm 1847.
