545 



middle spot. The abdomeu above is blackish, with somewhat indistinct 

 marking, which closely resembles that of very dark specimens of 

 E. diademata or E. angulata. The belly is black, with two yel- 

 lowish spots towards the hinder extremity. The cephalothorax is 

 5'/ 2 , the l:st pair of legs 22 millim. long. This form may for the 

 present be distinguished by the name of E. sinistra. — Another, as 

 it would seem , very nearly allied species from Tirol has been de- 

 scribed by L. Koch under the name of E. sceva '). 



Pag. 14, 491. Epeira umbratica Westr. , Blackw. — To the sy- 

 nonym: "1866. Epeira umbratica Menge, Preuss. Spinn." etc. should be 

 added: (ad part.: Q; non 



The male described and figure by Menge as E. umbratica is 

 evidently another species, as may be seen from the description and 

 figure of its palpi, the bulbus genitalis of which has a strong bifid 

 process on the under side. In E. umbratica the corresponding pro- 

 cess has quite another form: see above, p. 517. The male specimen 

 which Menge described, is, as he had the kindness to inform me, 

 no more in existence; I believe however that it was nothing more 

 than a dark specimen of E. sclopetaria (Clerck), unless it belonged 

 to a species, of which I have received a few specimens (from Austria) 

 of Mr L. von Kempelen and which I call E. ixobola. 



This E. ixobola n. is closely allied to E. sclopetaria (Clerck) or 

 E. sericata C. Koch, Blackw., but is easily distinguished not only 

 by a slight difference in its colours, but also by the male's organs 

 of copulation. The large, cloven process on the under side of the 

 bulbus is, as in E. sclopetaria, bifid to not quite half its length; 

 but the narrower branch is something longer than the broader, and 

 almost uniformly broad, whereas in E. sclopetaria it is somewhat 

 shorter than the other branch , tapering and pointed. The vulva is 

 drawn out in the form of a backward-directed, narrow, straight sti- 

 lus of almost uniform breadth, which is several times longer than 

 it is broad (rather longer than in E. sclopetaria). The cephalothorax 

 is more marbled with a paler colour than in E. sclopetaria, the pars 

 thoracica being behind brownish yellow, and its side-borders also to 

 a tolerably considerable breadth brownish yellow; similarly a good 

 part of the pars cephalica above is brownish yellow, with a dark 

 middle-line extending from the posterior eyes to the centre fovea of 



1) Beitrag z. Kenntn. d. Arachn. -fauna Tirols, 2:te Abhandl., in Zeitschr. d. 

 Ferdinandeums, 1872, p. 323. 



