COXTEITTS. VI [ 



Biological notes — Continued. Pagp. 



Foundation of new colonies 101 



Swarming 101 



Loss of wings 101 



Courtship 101 



Separation into pairs 101 



Mating and egg lajdng 102 



Egg lengths of Nearctic genera of termites 103 



Metamorphosis 104 



Castes of termites or the termite colony 104 



The different types of reproductive forms 105 



Workers and soldiers 110 



" Trophallaxis " Ill 



Proportion of soldiers to workers or nymphs of the reproductive forms in 



colonies of Nearctic termites 114 



Parasites 116 



Fungi 116 



Protozoa 116 



Nematodes 116 



Mites 117 



Insects 118 



Predators 118 



Termitophilous insects 118 



Association with ants 120 



Biological notes on the different species 121 



Family Kalotermitidae Banks 121 



Subfamily Termopsinae Holmgren 121 



Genus Termopsis Ileer 121 



Termopsis angusticollis Hagen and T. nevadensis Hagen 122 



Termopsis laticeps Banks 128 



Sul>family Kalotermitinae Holmgren 129 



Genus Kalotermes Hagen 129 



Kalotermes occidentis Walker 130 



Kalotermes margini])ennis Latreille 131 



Kalotermes schv/arzi Banks 133 



Kalotermes jouteli Banks 134 



Kalotermes minor Hagen 135 



Kalotermes hubbardi Banks 137 



Kalotermes texanus Banks 139 



Kalotermes simplicicornis Banks 139 



Genus Neotermes Holmgren 140 



Neotermes castaneus Burmeister 140 



Genus Cryptotermes Banks 141 



Cryptotermes cavifrons Banks 142 



Cryptotermes infumatus Banks 144 



Cryptotermes brevis Walker 144 



Family Termitidae Banks 145 



Subfamily Rhinotermitinae Froggatt 145 



Genus Prorhinotermes Silvestri 145 



Prorhinotermes simplex Hagen 145 



Genus Reticulitermes Holmgren 148 



Reticulitermes flavipes Kollar 150 



Reticulitermes virginicus Banks 161 



Reticulitermes hageni Banks 164 



