106 



Costa inferior, 52 note 

 Costa internet, 52 note 

 Costa media, 52 note 

 Costa mediastina, 52 note 

 Costulse marginales, 52 note 

 Coxa, 27 and 48 note 

 Crop or crown, 62 

 Cubitus, 52 note 

 Cutis vera, 21 note 



Dangerous errors of the natural 



system in botany, 100 

 Development, abuse of the term, 



87 



Digestion, organs of, 59 

 Diptera, i 03 note 

 Discovery by M. Ehrenberg, 83 

 Dorsal vessel, 66 

 Duodenum, 64 note 



Ears of insects, 21 



Ears mistaken for organs of touch, 

 80 



Earwigs and ants, 89 



Edge rib and its hook, 51 



Egg glue and its use, 85 



Eggs of insects, 87 



Eggs of the cockchafer, 48 



Eggs of the gnat built into a boat, 

 87 



Eggs of the louse, 84 



Eggs traced in the body of the 

 mother, 84 



Elytra, 54 note 



Entothorax, 26 note 



Epidema, 50 note 



Epidema insertionis, 33 note 



Epidermis, 21 note 



Epimera, 27 note 



Episterna, 27 note 



ETriTo/xa, 23 note 



Errors of the learned and the un- 

 learned, 85 



Errors refuted, 83 



Eruca, 90 note 



Excrementu, 65 note 



Eyelet, 53 



Eyes of insects, 39 



Faces, 65 note 



Family, term objected to, 100 



Fascia, 54 note 



Fashionable systems rejected, 101 



Fauces, 60 note 



Feelings of insects not acute, 79 



Feelers outer and inner, 44 



Femur, 48 note 



Flanks upper and under, 27 



Foot, 48 



Forceps, 57 note 



Fountains of the mouth, 60 



Frcenum, 56 note 



Frangles and tail of the wings, 54 



Funiculus, 35 note 



Furca, 26 note 



Galea, 44 note 



Ganglionic brain in insects, 76 

 Ganglionic system in man, 76 

 Ganglion described, 76 

 Ganglion secundum, 77 note 

 Ganglion tertium, 77 note 

 Gastric vessels, 63 

 Gizzard, 62 



Gooseberry and cabbage caterpil- 

 lars, 90 



Growth of insects, 87 

 Grub, meaning of the term, 91 

 Gullet and its nervous ring, 62 

 Gullet ring and second ganglion, 

 77 



Halteres, 56 note 



Haunch, 48 



Haus, 60 



Head in insects, 22 



Hearing, sense of, 80 



Heart, or dorsal vessel, 66 



Hemiptera, 103 note 



Hibernian blunders respecting 



moths, 100 



Homaloptera, 103 note 

 Homoptera, 103 note 

 Honey bag of bees and butterflies, 



62 



Horn scale, 28 

 Horny wings of beetles, 54 

 Hymenoptera, 102 note 



Imago, 95 note 



Image as objectionable as the si- 

 milar term type, 95 



Imperfect insects ! ! 96 



Ineunabulum, Q4 note 



Infancy of insects, 90 



Ingluvies, 62 note 



Inner rib, 53 



Insect, meaning of the term, 17 



Insects' mouths " imperfect " and 

 " totally useless" ! ! ! ! 42, 43 



