Theridiosomatidae

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Theridiosomatidae
Wendilgarda sp., maschio
Classificazione scientifica
DominioEukaryota
RegnoAnimalia
PhylumArthropoda
SubphylumChelicerata
ClasseArachnida
OrdineAraneae
SottordineAraneomorphae
SuperfamigliaAraneoidea
FamigliaTheridiosomatidae
Simon, 1881
Generi
vedi testo

Theridiosomatidae Simon, 1881 è una famiglia di ragni appartenente all'infraordine Araneomorphae.

Etimologia

Il nome deriva dal greco θηρίδιον, therìdion cioè animaletto, e σῶμα, sòma, cioè corpo, parte centrale, a causa delle dimensioni ridotte dei ragni di questa famiglia, ed il suffisso -idae, che designa l'appartenenza ad una famiglia.

Caratteristiche

Theridiosomatidae, tela a forma di cono

Sono ragnetti di piccole dimensioni, facilmente riconoscibili in quanto tessono la loro ragnatela a forma di cono o piriforme.

Theridiosomatidae, distribuzione

Distribuzione

Sono diffusi in America settentrionale, centrale e meridionale, fino all'altezza dell'Uruguay; in tutta Europa, Asia minore e Asia centrale; in Corea, Giappone, Filippine, Australia orientale e parte dell'Africa centrale[1].

Tassonomia

Attualmente, a novembre 2020, si compone di 19 generi e 129 specie[1]: la suddivisione in sottofamiglie segue quella dell'entomologo Joel Hallan[2].

Generi trasferiti e inglobati

  • Alaria Zhao & Li, 2012[3] - Cina
  • Luangnam Wunderlich, 2011[4] — Laos

Note

  1. ^ a b World Spider Catalogue, versione 21.5, Famiglie di ragni, con numero di generi e specie URL consultato il 1 dicembre 2020, su wsc.nmbe.ch.
  2. ^ Biology Catalog (TXT), su insects.tamu.edu (archiviato dall'url originale il 6 dicembre 2009).
  3. ^ Genere ridenominato in Sinoalaria Zhao & Li, 2014 in quanto la denominazione Alaria Schrank, 1788 già indicava un genere di vermi platelminti della famiglia Diplostomatidae.
  4. ^ Genere posto in sinonimia con Coddingtonia Miller, Griswold & Yin, 2009a seguito di uno studio di Labarque & Griswold del 2014 e ivi inglobato.

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