xiv Table of Contents 



PAGE 



The accessory veins 146 



The suppression of the dichotomy of the radial sector 147 



The radial cuneate area 1 62 



The secondary cubital fork 165 



Gradate veins 166 



The recurrent vein 1 66 



The coalescence of veins Sc and Ri 166 



Marginal dots or dashes 167 



The first radio-medial cross-vein of the hind wings .' 167 



(c) The wings of the Sialida3 168 



The wings of the Sialinse 168 



The wings of the Corydalinae 170 



(d) The wings of the Raphidiidas 171 



ie) The wings of the Mantispidae 174 



(/) The wings of the Ithonidce 175 



(g) The wings of the Sisyridse 178 



(h) The wings of the Sympherobiidge 178 



{i) The wings of the Hemerobiidse 1 80 



(7) The wings of the Dilaridae 1 84 



(k) The wings of the Berothidas 186 



(/) The wings of the Polystnechotidag 187 



{m) The wings of the Psychopsidaj 188 



(w) The wings of the Chrysopidae 1 89 



(0) The wings of the Osmylidse 1 92 



ip) The wings of the Myiodactylidse 193 



iq) The wings of the Nymphids 195 



(r) The wings of the IMyrmeleonidse 196 



(5) The wings of the Ascalaphidae 206 



(/) The wings of the Nemopteridag 208 



(w) The wings of the Apochrysidse 210 



(i') The wings of the Coniopterygidse 212 



CHAPTER X 

 The Wings of the Ephemerida 



(o) The more general features of the wings of the Ephemerida 214 



(b) The tracheation of the wings of the Ephemerida 214 



(c) The homologies of the wing- veins of the fore wings of the Ephemerida . . 217 



(d) The corrugations of the wings of the Ephemerida 219 



Table of the wing- veins of the Ephemerida 220 



(e) The homologies of the hind wings of the Ephemerida 222 



CHAPTER XI 

 The Wings of the Odonata 



(a) The more general features of the wings of the Odonata 224 



Table of the wing-veins of the Odonata 228 



(b) The special features of the wings of the Odonata 229 



The nodus 230 



The subnodus 230 



The oblique vein 230 



The bridge 230 



