344 



British Dragonflies. 



Localities — continued. 



I. putniho, 269 



L. depressa, 106, 331 



Z. dry as, 232 



L. diibia, 68 



L. fidva, 121, 331 



L. quadrimaculata, 117, ZZ^ 



L. sponsa, 237, 332 



O. ccsrulescens, 126, 331 



O. canct'llatum, 130, 331 



O. ciii-tisii, I 50 



P. nympliula, 260, 332 



P. pennipes, 243 



P. ten el hem, 265 



S. arctica, 140, 331 



S. Jiaveohim, 86, 331 



S.fonscolombii, 80 



.S". fnetallica, 136, 331 



.S'. sanguineum, 93 



.S. scoticutn, 89, 331 



6'. strtolatum, 75, 331 

 Longitudinal, as applied to the 



parts of an insect, 55 

 Loss of colour, cause of, 321 

 Lower sector of arculus, 53 



triangle, 53 

 lua'fugus, 283 

 ludovLciana, 214, 221 

 lunulata, 157 

 liiniilatuiii, 277 



M. 



Tnacrocephala, 69 

 niacidata, 107 

 macnlatissima, 196 

 Male imago : 



^is. ccsrulea, 185 



^". cyanea, 197 



^. grandis, 204 



^^. isosceles, 210 



^^. juncea, 191 



^. fnixta, 178 



^. imperator, 165 



^. meiruriale, 292 



A. piiella, 284 



Male imago — continued. 



A. pulchellum, 278 



^. pratense, 1 7 1 



C. (Enea, 142 



l". anniilatus, 158 



C. s pi end ens, 222 



C. 77>^o-tf, 215 



ii. cyathigerum, 299 



^. naias, 244 



6^. vulgatissinius, 152 



/. elegans, 272 



/. pumilio, 267 



Z. depressa, loi 



Z. d/yas, 230 



Z. dubia, 64 



Z. ftilva, 119 



Z. quad rimacu lata, lOi 



Z. sponsa, 233 



<?. ccsrulescens, 123 



O. cancellafuin, 127 



(9. curtisii, 149 



Z". nyinphula, 253 



Z". pennipes, 239 



Z*. tenelluni, 262 



^. arctica, 138 



»?. Jiaveolum, 82 



^S". fonscolombii, 77 



^. metallica, 132 



iS". sanguineum, 88 



^. scoticum, 94 



^. striolatum, 71 

 Alallophaga, 28, 29 

 Mandibles, 49 

 " Mask," 35 

 Maxillre, 49 

 Mayflies, 27 

 Mecaptcra, 29 

 Median nervure, 51 



sector, 53 

 melanostigma, 63 

 Mentum, 48 

 niercuriale, 290 

 meridionalc, 301) 

 Meso-notum, 49 

 Meso- thorax, 49 

 metallicn, i ^o 



