124 Stettiner Entomoiogische Zeitung. 81. 1920. 



l.Baetis Leach (Eaton p. 156): I. hioculatus h. (Eaton p. 158), 

 veimstulus Etn. (Eaton p. 160), scambus Etn. (p. 160), vernus 

 Curt. (Eaton p. 161), rhodani Vici. (Eaton p. 161), Boeagii Etn. 

 (p. 162), gemellus Etn. (p. 163), atrebatinus Etn. (p. 164), tenax 

 Etn. (p. 164), melanonyx Pict. (Eaton p. 165), alpinus Pict. 

 (Eaton p. 166), buceratus Etn. (p. 166), pumillus Burm. (Eaton 

 p. 166), niger L. (Eaton p. 167), ? fuscus Schneid. (Eaton p. 302), 

 Wallengreni Bgtss. (Bengtsson , Ent. Tidskr. 1912. p. 112), 

 pusülus Bgtss. (ib. p. 113), digitatus Bgtss. (ib. p. 114), in- 

 curvus^) Bgtss. (ib. p. 115), subalphms Bgtss. (Bengtsson, Ent. 

 Tidskr. 1917. p. 187), sca^zcM^ Bgtss. (ib. p. 188), nubeeularis 

 Etn. (Eaton, Ent. Month. Mag. [2] 9. 1898. p. 265), carpaticus 

 Mtn. (Morton, Entomologist, Dez. 1910), andalusicus Nav. (Navas, 

 Bol. Soc. Arag. Ci. Nat. 10. 1911. p. 206), neglectus Nav. 

 (Navas, ibid. 1913. p. 62), Ibeii Nav. (ib. p. 63), hispanus Nav. 

 (Naväs, ib. 1915. p. 41), amleatiis Nav. (ib. p. 54); IL posticatus 

 Say (Eaton p. 169) , unkolor Hag. (Eaton p. 169 : Hageni)^ 

 rubescens Hag. (Eaton p. 169), propinquus Walsh. (Eaton p. 169), 

 pygmaeus Hag. (Eaton p. 170, Needham , Bull. 47. New York 

 State Mus. 1901. p. 421); HI. opacus Nav. (Naväs, Broteria* 

 1915. p. 12), comes Nav. (Naväs, Broteria 1913. p. 194), inops 

 Nav. (ib. p. 195), Sahmii Ein. (Eaton p. 170), ^ StelzrieriWeyenh. 

 (Eaton p. 171), ? Sieioertn Wejenh. (Eaton p. 296), penwianus 

 Ulm. (ülmer, Arch. f. Nat. 1919. A. 12); Y.feminalis Etn. (Eaton 

 p. 171), consuetus Hag. (Eaton p. 172), solidus Hag. (Eaton 

 p. 172), javanicus Ulm. (Ulmer, Not. Leyden Mus. 35. 1913. 

 p. 110), soror Ulm. (Ulmer, Fauna S. W. Austral. H. 1908. 

 p. 44). 



NB. Die Arten sind z. T. schwierig unterscheidbar, einige 

 auch unsicher , mehrere ungenügend beschrieben ; Bengtsson 

 (Ark. f. Zool. 7. 1912. p. 5) sagt, daß bioculatus L. (Eat.) 

 richtiger B. fuscata L. heißen müsse, während bioculatus L. ein 

 Centroptüum sei (s. d.); auch müsse pumilus Burm. in muticus L, 

 umgetauft werden (p. 7). 



2. Acentrella Bgtss. (Bengtsson, Ent. Tidskr. 1912. p. 110): 

 I. lapponica Bgtss. (ib. p. 111). 



S. Centr optiliim Etn. (Eaton p. 174): I. luteolwn Müll. (Eaton 

 p. 175), lacustre Etn. (p. 176), pennulatum Etn. (p. 176), nemo- 

 rale Etn. (p. 177), pidchruin Etn. (p. 177), litura Pict. (Eaton 



1) In Ark. f. Zoologi. 7. 1912. p. 10 sagt Bengtsson, daß incurvus 

 mit cinctus Retz. identisch sei; die Art müßte dann B. cinctus Retz. 

 heißen; cinctus Retz. wurde sonst für eine Leptophlebia gehalten (cfr. 

 Paraleptophlebia !) 



