768 CONTENTS 
PAGE 
The adult flies) ee oS see eG Chala eds pe Oe ONS SSE Sle a a 845 
Structure eae eae Se Sa i ah seu ELS RLS SS ns ae 845 
The heady eee es Ee Dy a iT IE eS 845 
The 'sclerites 50.252 Meee ok 5 SS Te ee 845 
The mouth parts................ bP sb 6 gadis cies slccese coe eee eae 846 
The tantennae!:)3 oo eG os Bs aie ie ee Ge ee 848 
TNE EYES! 355 oi ess le are ei ae SSE ee 854 
The thorax: 8 2) Pes Ses oe ae 854 
Whe leg 222 ies uein see RPS BO SN Te NL Ea 858 
The transverse:suture 2:58 2.6002 oO 860 
The wings and their venation... ....,...... 0... cece cece eee eee eee 860 
The abdomen: 223). 500505 22 Pop Se si fois Bae Wa sels Cee ee 870 
Sexual dimorphism) yes o2 Sees os we AOR See ee eee 876 
ER AU tse eee ny See aa ater Oy Fa oro GR OUI MRO AR Aa Gur eay nie alk daue 876 
WNC hig La -'= Were nee ene aE ee Pe Pa eI I ne ab ooo 878 
Feeding shabitsesceg vy in us etaiscots ero asnconide ann Cea a ORIN NG A aa EMIS 878 
MRestin gba bits eck yo acai ces aay to era NNW tes a Basia oe ANG SR ane 879 
Swarmingand mating... 5). 65 Pe ep 880 
Oviposition:2.2 5.5 ee ee ee DES PR, ee 881 
Photophilism : 25.3 se oS ie SS ae eer 881 
INEMIES | 45'S Fe ek eke i Re ey NS LS I VO RA 882 
Keys to the crane-flies of northeastern North America..................2.-02+-+200: 883 
References ‘cited. fice Ses ele EOE EE ELIS OO aa a a 959 
1CsX6 (=> qatar eae nL Rear eR Ie Me MRR EEN. a Gc ooo oo ado 963 
