77 



Although it is perfectly certain, that Ar. obtectrix Strack is 

 identical with Pachygnatha I)e Geeri Sund., yet I have preferred 

 the younger specific name DeGeeri, because Strack believed his Ar. 

 obtectrix (or obtextrix as he also writes) to be the same as Ar. ob- 

 textrix Bechstein, which is an error: see above under Epeiva diade- 

 mata Westr., p. 17. I do not think it right to cashier a generally 

 received name for another older and obsolete, if the older name only 

 by a mistake has been given to the species , and properly belongs to 

 quite another animal. — Concerning P. Clerckii C. Koch, vid. sup., 

 p. 75, under the head of P. Clerckii Westr. 



(Pag. 148.) IV. ERO [= Ero (C. Koch) 1836]. 

 Vid. Thor., On Eur. Spid., p. 89. 



(Pag. 149.) 1. E. variegata [= Ero thoracica (Reuss) 1834]. 



Syn.: 1834. Theridium thoracicum Ueuss, Zool. Misc., Arachn., p. 213 (218), 



PI. XIV, fig. 11. 



1836. ERO VARIEGATA C. Koch, in Herk.-Sch.*kf., Deutschl. Ins., 138 

 (Deutschl. Crust., Myriap. u. Arachn., 5), 5, 6. 

 1841. Theridium variegatum Walck., H. N. d. Ins. Apt., n, p. 332. 

 1841. „ callens Blackw., The differ, in the numb, of eyes, etc., 



p. 627. 



1841. „ variegatum id., Spid. of Gx. Brit., II, p. 203, PI. XIV, 



fig. 134. 



1866. Ero variegata Menge, Preuss. Spinn., I, p. 147, PI. 28, tab. 61. 



1867. „ atomaria Ohl., Aran. d. Prov. Preuss., p. 81. 



The specific name thoracica Reuss has priority before variegata 

 C Koch. The Number of Deutschlands Insekten (and Deutschl. 

 Crustaceen, Myriapoden and Arachniden), in which that name was 

 for the first time applied, certainly did not appear before 1835, 

 probably at least one year later. 



(Pag. 150.) 2. E. tubercillata [= Ero tuberculata (De Geer) 1778]. 



Syn.: 1778. Aranea TUBERCULATA De Geer, Mem., VU, p. 226, PI. 13, figg. 1—9. 

 1802. „ aphana Walck., Faune Par., II, p. 206. 

 1836. Ero tuberculata C. Koch, in Herr.-Sch.kff., Deutschl. Ins., 138 



(Deutschl. Crust., Myriap. u. Arachn., 5), 3, 4. 



