234 K. E. SNODGKASS. 



Fig. 84. Tipula retusa. teiniinal part of abfiomen, lateral view, x 10. 



" 85. " ■' apical appendages of left side, outer view. 



" 86. " '' terguiu of hypopygiiini, dorsal view. 



'' 87. ■' ■' guard of penis, lateral view. 



" 88. " " central vesicle (c. v.) and penis (p.). 



" 89. " inermis, apical appendages of left side, outer view. 



" 90. " " anal tube, or tenth segment. 



*' 91. " " distal lialf of abdomen, lateral view, x 10. 



" 92. '■ " sternum of eighth segment, ventral view. 



" 93. " '■ guard of penis, dorsal view. 



PLATE XIV. 



Fig. 94. Tipula bie.ornis, distal half of abdomen, lateral view, x 10. 



" 95. " " guard of penis {p. g.) and supporting framework. 



" 96. ■' " lateral lobe of ninth sternum. 



■' 97. " ■' central vesicle (c. «.) and base of penis ( ^.) ventral view. 



" 98. " " apical appendages of left side, outer view. 



" 99. " '• guard of penis {p. g.) and its supporting framework. 



" 100. " " ventral plate of aual tube. 



" 101. '' " tergum of hypopygium, dorsal view. 



'■ 102. " streptocera, hypopygium, dorsal view. 



" 103. " " terminal part of abdomen, lateral view, x 10. 



■' 104. '■ bisetosa, apical appendages of left side, outer view. 



" 105. ■■ streptocera, apical appendages of left side, outer view. 



" 106. " bisetosa, distal half of abdomen, lateral view, x 10. 



" 107. " " guard of penis ( J), jf.) and appendages below it. 



" 108. " flavicans, distal half of abdomen, lateral view, x 10. 



PLATE XV. 



Fig. 109. Tipula unicincta, distal half of abdomen, lateral view, x 10. 



'' 110. " •' apical appendages of left side, outer view. 



111. " " guard of penis (p. 3.) and appendages l)eiow it. 



112. " acuta, apical appendages of left side, outer view. 

 '■ 113. " " eighth sternum of abdomen, ventral view. 



114. " unicincta, posterior end of eighth abdominal sternum, anterior 



(i. e. dorsal) view. 



115. " acuta, ventral appendages of ninth abdominal sternum. 

 '■ 116. " " guard of penis, dorsal view. 



" 117. " " tergum of hypopygium, dorsal view. 



" 118. " tephrocephala, terminal part of abdomen, lateral view, x 10. 



" 119. " tricolor, terminal part of abdomen, lateral view, x 10. 



" 120. " tephrocephala, tergum of hyjjopygium, dorsal view. 



" 121. •' tricolor, apical appendages of left side, outer view. 



" 122. " tephrocephala, apical appendages of left side, outer view. 



