ERRATA AND ADDENDA. 
Page 58, line 7, for ovalis read ovata. 
Page 85, line 8, for longicaudus read longicauda, and just above Phacus pleuro- 
nectes read the following paragraph :— 
Phacus longicauda var. torta, n. var.—This variety, for which I propose the 
name forta because of the twisted body, is figured by Stein (’78, Taf. 20, Fig. 3). It 
occurred sparingly in midsummer from July to September, rarely in October, in 
1896 and 1897. 
Page 91, line 18, after T. caudata Ehrb. read T. lagenella Stein. 
' Pages]153, line 3 from’ bottom, 168, line 16, and 178, line 14, for ’98 read ’98a. 
Pages 156, line 11, 159, line 16, and 161, line 5 from bottom, for ’93 read ’98a. 
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