CONTENTS 
Introduction.) in. eee ee 
Acknowledgements 25 <:2%).7. cts tes ee ee 
Distribution’ and. Habitat. 9. ee ee 
Food Habits. 20). 250% Shs cree een eee 
Respiration™ 3... ¥agi. <2oGie ee oe ee ae 
Life Cycle and Metamorphosis’)... .22... 2. 
Collecting, Transporting and Rearing Stoneflies ....... 
Preservation for Study .2, 23. .4 «2s. 69 ee 
Technique. i. .6. oe oes eet ee ee OSS ae, 
Illustrations ...5. 25. sgh peer et ene 
Explanation of Terminology .-0 7224...) se 
Classification (Summary of Characters) .............. 
Key to the Families and Genera of the Nymphs ........ 
PTERONARGIDAH @7e). 700) 3 ee 
Pteronareys sic ise. fs ee ae ee 
Pteronarcella® 2/22 ye. Be ee es 
Peltoperla <0... 4 Pe ee ee 
PERLIDAE Sty © Saga ek Oe | 
Perlodes <2. 3 San cig hp eee ee Pe toe Oe ee 
Tsogenus 45 yt. ba yg ope oie 2 ee ee 
Perla. | cence cis ede ee ae ier Pos... 
Alloperla. 2 oiy.ge ack vse « soe et ee 
Chloroperla (1. es... ee 
Paraperla 0) oe. 0A: apes 2 
Neoperla 2.00000. 5s seancceb es Deel eee er 
Clioperla: 2.0 wea. eg ee a 
Tsoperla. oc. eo ee etescope ee ees 
Perlesta! i305 0 Oa ei ae 
Atoperla ... 5g. 0. to os dae 
Perlineéllayg. 064 3.48 ae ee 
Leuctra + 0c fe os agg ae ote 
Taeniopteryx: . 0%). stoke wie ea eke ee 
CAPNIIDA He earings ee 
Capmla: oor used te ee Ole Ne eg ee 
A llocapmia: iy 3.27a ain eR ocd lar ee te cee ae 
Selected References ................ alt Wecen. fe 
Distribution and Emergence Table .................... 
Plates and Explanations: 95... 2.6.0.0. 
Index sis 2 Sa Oe ene ee ee ee 
