Theridiidae Sundevall, 1833

Family |   ACCEPTED
N.B.: considered a senior synonym of Hadrotarsidae Thorell, 1881 (removed from the synonymy of Oonopidae by Roewer, 1963a: 122, contra Roewer, 1942a: 287) by Forster, Platnick & Coddington, 1990: 111 (after Wunderlich, 1978a: 25 and Wunderlich, 1986: 95, contra Baert, 1984a: 615 and Davies, 1985: 67), who recognized an expanded Hadrotarsinae as well as a separate subfamily Spintharinae.
Gen. Ohlertidion Wunderlich, 2008 urn:lsid:nmbe.ch:spidergen:03862
N.B.: Synonymy of Ohlertidion with Heterotheridion Wunderlich, 2008, proposed by Breitling, 2019b: 27, not accepted here as it is based mainly on COI, see FAQ 7).

In synonymy:

Ohlertidion simulatum (Emerton, 1926, T from Theridion) = Ohlertidion ohlerti Thorell, 1870 (Levi, 1957a: 98, sub Theridion)

Ohlertidion umbraticum (L. Koch, 1872, T from Theridion) = Ohlertidion ohlerti Thorell, 1870 (Holm, 1945b: 13, sub Theridion)

Ohlertidion lundbecki (Sørensen, 1898) | | Greenland urn:lsid:nmbe.ch:spidersp:006833
Theridion lundbeckii Sørensen, 1898: 191 (Dmf) Original description
Theridion lundbecki Jackson, 1930: 642, pl. 17, f. 10 (f)
Theridion ohlerti lundbecki Holm, 1958a: 525, f. 1-3 (mf, removed from S of Theridion umbraticum, per Roewer, placed as subspecies)
Theridion ohlerti lundbecki Marusik, Böcher & Koponen, 2006: 77, f. 6 (f)
Ohlertidion lundbecki Wunderlich, 2008b: 392 (Tmf from Theridion, elevated to species)
Ohlertidion lundbecki Marusik, 2015: 698, f. 2A, 21G, 22C, 23B (f)
Ohlertidion ohlerti (Thorell, 1870) | | North America, Europe, Russia (Europe to Far East) urn:lsid:nmbe.ch:spidersp:006832
Theridion ohlertii Thorell, 1870a: 85 (Df) Original description
Theridion umbraticum L. Koch, 1872b: 243 (Df)
Theridion umbraticum Simon, 1881a: 87 (Dm)
Theridion umbraticum Chyzer & Kulczyński, 1894: 35, pl. 1, f. 35 (mf)
Theridion umbraticum Bösenberg, 1902: 100, pl. 8, f. 121 (mf)
Theridion umbraticum Fedotov, 1912b: 452, pl. 8, f. 1 (f)
Theridion umbraticum Simon, 1914: 262, 296, f. 522-523 (mf)
Theridion simulatum Emerton, 1926: 115, f. 1-2 (Dmf)
Theridion affine Strand, 1928a: 91 (m, provisional name only)
Theridion umbraticum Wiehle, 1937: 162, f. 107-113 (Dmf)
Theridion ohlerti Holm, 1945b: 13 (S)
Parasteatoda umbraticum Archer, 1950: 14 (Tmf from Theridion, rejected)
Allotheridion ohlerti Levi & Levi, 1951: 220, f. 3, 7-8 (mf)
Theridion ohlerti Levi, 1957a: 98, f. 324-325, 332-334 (mf, S)
Theridion ohlerti Holm, 1958a: 526, f. 4-5 (mf)
Theridion umbraticum Tystshenko, 1971: 150, f. 406, 427 (mf)
Theridion ohlerti Miller, 1971: 194, pl. XXXIV, f. 20-21 (mf)
Theridion ohlerti Palmgren, 1974b: 27, f. 6.11-14 (mf)
Achaearanea ohlerti Heimer & Nentwig, 1991: 280, f. 756 (Tmf from Theridion, rejected)
Achaearanea ohlertii Paquin & Dupérré, 2003: 213, f. 2377-2378 (mf)
Theridion ohlerti Knoflach, 2004: 213 (rejected T)
Achaearanea ohlerti Almquist, 2005: 51, f. 78a-h (mf)
Theridion ohlerti Marusik, Böcher & Koponen, 2006: 78, f. 5, 7 (f)
Theridion ohlerti Agnarsson, Coddington & Knoflach, 2007: 378, f. 157-160 (m)
Ohlertidion ohlerti Wunderlich, 2008b: 392, f. 539-546 (mf)
Theridion ohlerti Le Peru, 2011: 482, f. 838 (mf)
Ohlertidion ohlerti Vanuytven, 2021: 44, 211, f. A.33a, B.211a-b, B.212 (mf)
Ohlertidion thaleri (Marusik, 1988) | | Russia (north-eastern Siberia, Far East) urn:lsid:nmbe.ch:spidersp:008729
Theridion thaleri Marusik, 1988a: 1476, f. 5.1-5 (Dmf) Original description
Ohlertidion thaleri Wunderlich, 2008b: 392 (Tmf from Theridion)

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