VI CONTENTS. 



Description of subfamilies, genera and species — Continued. 

 Subfamily Rhinotermitinae — Continued. ' 



Genus Rel iculitermes Holmgren — Continued. Page. 



Reticulitermes virginicus Banks 46 



Reticulitermes claripennis, new species 47 



Reticulitermes tibialis, ne'n- species 47 



Reticulitermes hesperus, new species 50 



Reticulitermes bumilis, new species 51 



Reticulitermes humilis, var. hoferi, new varietj' 53 



Reticulitermes tumiceps, new species 53 



Reticulitermes lucifugus Rossi 53 



Subfamily Termitinae 54 



Key to genera : 54 



Genus Amitermes Silvestri 55 



Key to species 55 



Amitermes tubiformans Buckley 55 



Amitermes arizonensis, new species 56 



Amitermes wheeleri Desneux 59 



Amitermes californicus, new species 62 



Amitermes (?) perplexus, new species 63 



Amitermes (?) confusus, new species 65 



Genus Anoplotermes Fritz Miiller 66 



Anoploti'rmes fumosus Hagen 66 



Nasutiternies, new genus 69 



Nasutitermes costaricensis Holmgren 69 



Genus Constrictotermes Holmgren 71 



Key to species 71 



Constrictotermes tenuirostris Desneux 71 



Constrictotermes cinereus Buckley 73 



Genus Leucotermes Silvestri 75 



Leucotermes tenuis Hagen 76 



Catalogue of Nearctic termites with synonomy 77 



Index of species 82 



Record of the location of existing type specimens of Nearctic termites 83 



Part II— BIOLOGY. 



Introduction 87 



List of Nearctic termites 87 



Key to Nearctic termites based on biology and prominent structural characters . . 88 



Biological notes 89 



Nests 89 



Subterranean species 89 



Wood-inhabiting species 93 



Food 94 



Damage 94 



Character and extent of damage done by termites 94 



Remedies and preventives 96 



Subterranean termites 96 



Nonsubterranean termites 98 



Function of the swarm or aerial colonizing flight 98 



Diurnal swarming 99 



Noctiu"nal swarming 99 



Seasonal and other variations in swarming 99 



