262 
Psyche 
[Vol. 88 
Hydropsyche reciproca (Walker) 
Philopotamus reciprocus Walker, 1852: 104. 
Hydropsyche reciproca : Betten & Mosely, 1940: 22. 
The genitalia of the female holotype do not correspond to those 
of any other species known to me. They are illustrated here, for the 
first time, for the future reference of students of North American 
Hydropsyche species. The type locality is given simply as ‘North 
America’. 
Summary 
The female holotypes of Hydropsyche confusa (Walker), H. 
alternans (Walker), and H. reciproca (Walker), all from North 
America, were examined, and illustrations of the genitalia are 
provided for the first time. It is concluded that H. separata Banks is 
conspecific with H. confusa (Walker), and that H. recurvata Banks 
is conspecific with H. alternans (Walker). The Walker names have 
priority. H. reciproca (Walker) cannot yet be equated with any 
other known species. 
Acknowledgments 
Loan of the three types examined here was very kindly arranged 
by Peter Barnard of the Entomology Dept, British Museum (Na- 
tural History). This paper is an offshoot of work on preparation of a 
Handbook to the Arctopsychidae and Hydropsychidae of Canada, 
which was supported by a contract from the Canada Dept of 
Agriculture. The work was carried out in the Dept, of Entomology, 
University of Alberta. Steve Ashe of that Department read, and 
commented on the manuscript. Publication costs were met by 
George E. Ball of the same Department, from grant NRC A- 1399 
held by him. 
To all, my sincere thanks. 
