BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 28. AFD. IV. N:0 1. 37 



Being in the position to examine more closely some forms 

 of the genus Gnolus as also Oarces reticulatus (Nic.) that 

 opinion has forced itself upon me, that these two genus are 

 so nearly related to each other as to make it impossible to 

 refer them to different families. A study of the material I 

 have disposed of (of Oarces reticulatus I have had only one 

 subad. female) shows enough to prove that opinion. For se- 

 veral reasons I refer them to the family Mimetidee. I do not 

 do so, however, without hesitation, not having examined any 

 forms of the genus Arcys — hitherto only found in Australia 

 — and some other argiopids, to which these genus show a 

 great affinity. Before the description of the species I will 

 give a general view of the exteriör morphology of these spi- 

 ders, which though not proving my above expressed opinion, 

 may show that the present limitaton of the genus Gnolus 

 probably is too wide. 



The cephalothorax is oval and is by most species nar- 

 rower in front. Only by Gr. augulifrons Sim. it is broader 

 and on each angle strongly projected, a characteristic, which 

 we find by the australian genus Arcys. Generally the pars 

 cephalica is not higher than the low pars thoracica, but by 

 the species G. augulifrons Sim. and zonulatus Tullgr. this 

 part is highly convex, much higher than the pars thoracica. 

 That is even a characteristic for Arcys. The side-furrows 

 are generally distinct and from the hind-end of pars cepha- 

 lica runs backwards a deep central-furrow. The clypeus varies 

 a little in height, as highest it is twice as high as the dia- 

 meter of the anterior middle-eyes. 



The area of the eyes is very broad, dependent on the 

 breadth of the front. The distance between the lateral and 

 the middle-eyes is consequently very long. By that charac- 

 teristic these species difFer from the genus Oarces, but it is 

 not of any great importance. The area of the middle-eyes 

 is always narrower in front than behind by Gnolus as well 

 as by Oarces. The two lateral eyes are commonly contiguous. 

 By G. augulifrons they are distinctly separated and the 

 posterior one is situated on the apex of the lateral projection. 

 By Oarces the two lateral eyes are separated, but by these 

 genus the cephalothorax has a normal shape. The genus 

 Arcys has the eyes arranged nearly similarly with Gnolus, 

 but diifers especially by having the area of the middle-eyes 



