558 CONTENTS 
Life history (continued): 
The adult (continued): 
Preference for stagnant water. 9.5 .0.0)5 25. 2s .ceeoon ee eee eee 
Hactors‘attecting the adults= 55. 1045.42.52 0c eee 
Absence of salt.in water: 22 fs .2022 ke 5 Je ee 
Oviposition,. 2272 Sheng hee Phe ne Seg re eee 
Descriptions; 2G. e as ke ese Sees Gag ee 
Hatching. 20. oo ee ist < Sere Sas ne inns es ee 
Protection =) {cee ae es 20S wn ls te BoE 
inemies oe. 6S eeiese od kee wie lo wee oes eae nd ah Reed gS 
Dispersal: 50 5h See sc tele eee BP a ke eee 
Seasonal appearance and meteorologic conditions.................-.00-.000-2 eee eee 605 
Communalilife. (2 sus .ca ek as nee od be os bee eee 6 SEO eee 606 
Hibernation «2 sch ssc 2 oo tae seh obs wae Sed SE ree 607 
GUM MALY. oie S 5 See eis saree suc gk Feo ayaeell eke Goo since See a ae abs bran ree STEV eee ae 607 
