232 Psyche [October-Decembei 



and venter greenish or yellowish ; membrane smoky, the smaller 

 areole and a small rounded spot next to the cuneus hyaline, the 

 veins calloused, greenish, becoming white at the apex of the 

 larger cell. Legs yellowish ; tibiae piceous at the extreme apex, 

 the fore and middle tibiae often greenish on the apical half; 

 third segment of tarsi, often also the base of the first segment, 

 piceous. Body rather sparsely clothed with white hairs, most 

 conspicuous on the lateral margins of pronotum and hemelytra; 

 dorsal parts (including head) also with conspicuous short black 

 hairs which are flattened and deciduous. 



Orthotijlus (Psallus) delicatus Cook, 1891, Bull. 76, Mich' 

 Agr. Coll. Exper. Sta., p. 10, fig. 1 (manuscript name of Uhler)" 



This species is readily distinguished from the other American 

 representatives of the genus Orthotylus by the character of the 

 vestiture and the genital claspers. 



Redescribecl from numerous specimens collected at Ann 

 Arbor, Midi., June to September, 1920, 1921, 1922. I have 

 also seen individuals from Stockbridge, Mich., l-IX-1920 (R. F. 

 Hussey); Battle Creek, Mich., 18-VI-1922 (Priscilla Butler); 

 and four from East Lansing, Mich., bearing the label "Ag. Coll. 

 Mich." Lectotype, 9, "Ag. Coll. Mich. 7-29-'90. 1642.^', in 

 collection of the Michigan Agricultural College. 



IL 



Li my recent paper on Hemiptera from North Dakota , 

 there are two errors which require correction. 



p. 9, line 27. In place of IscJniodemus f aliens (Say), read 

 Ischnodemus hesperius Parshley (1922, Bull. Brookl. Ent Soc, 

 xvii, p. 123, =/. hrevicornis Parshley, 1922, S. Dak. State College 

 Techn. Bull. No. 2, p. 8; name preoccupied). 



p. 10, line 28. In place of Peritreehus fraternus Uhler, read 

 Peritrechus saskatchewanensis I^SLYher (1918, Jl. N. Y. Ent. Soc, 

 xxvi, p. 60). 



SOccas. Papers Mus. Zool. Univ. Mich., No. 115, July 1, 1922. 



