210 
Derham, Dr., 9 
Diptera, description of order, 2 
Destruction of fungi by Mycetids, 105 
Dexide, xv., 16 
Diadocidinz, 15, IOI, 150 
Diadocidia, 150 
%” Serruginosa, 150 
Diamesa, 169, 171, 188 
ss  ammon, 189 
»,  chtron, 189 
3,  obscurimanus, 189 
9 tonsus, 190 
” typhon, 190 
»  walthit, 189 
Dicheeta, 13 
Dilophus, 152, 160 
Mee fossil, 154 
‘s albipennis, 162 
» jfebrilis, 153, 161 \ 
destruction caused 
by, 162 
ne humeralis, 162 
Diplosis, 50, 75 
»  botularta, 78 
” buxti, 78 
»;»  callida, 80 
»,  centralis, 80 
»»  ceomatis, 44 
»  contophaga, 75 
» flava, 81 
x,  Jraxinella, 77 
»,  Aelianthemi, 78 
»  jacobea, 81 
»»  ¢enaria, 79 
” lott, 75 
»» prnz, 79 
» tremula, 75 
»  trttict, 44, 76 
prevention and re- 
medies of attack, 77 
> 99 
3° 9 
Dirrhiza, 83 
»» fossil, 49, 51 
»  vrhodophila, 83 
Ditomyia, 105, 148 
ss fasciata, 149 
Dixa, 4 ' 
Dixide, xii., 15, 18, 20 
Docosia, 103, 123 
9 ~=—«Scarina, 124 
», valida, 124 
Dolichopodide, xiv., 3, 13, 16 
Dolichopus, 3 
Drosophilidee, xviii., 17 
Dynatosoma, 103, 120 
Pe JSuscicornis, 120 
E. 
Eggs, of Cecidomyia, 44 
Eleutherata, 11 
Embryology, 6 
Empalia, 104, 135 
” witripennis, 135 
Empheria, 104, 135 
INDEX. eee a 
Empheria, fictipennis, 135 
Empide, xiii., 3, 13, 16 
Empine, I 
Empis, 3 
Emprosthocentra, 7 
Entomological Society, of London, 12 
3 phydride, xviii., 17 
Bot pela 17 
pus, 102, 113, 151 
venaticus, 113 
Epidosis, 83 
” fossil, 49, 51 
” defect 84 
» _ longipes, 84 
Epiplecia, 154 
Eproboscidea, 6, 14, 17 
Eremocheta, 19, 20 
Eriopterinz, 15 
Eristalis, 5 
Eurycnemus, 169, 187 
és elegans, 187 
Exechia, 103, 120 
>,  Sungorum, 121 
cs lateralis, 121 
Exochnata, 11 
Epi 
F. 
Fabricius, 11, 12 
Fertilization of Aristolochia, by Cecids, 
47 
Fever Fly, 153, 161, 162 
Flax Seeds, of Hessian-Fly, 53 
Fleas, 21-37 
», anatomy of larva, 26 
», alimentary canal of, 27 
;, characters of genus, 24 
s, Classification of, 23 
»» geographical distribution of, 36 
»5 history of, 21 . 
»» fossil, 36 
ad metamorphoses of, 22 
»» modes destruction of, 36 
», literature on, 37 
», tabulated, 35 
», the common, 29 
», the dog, 30 
», the hen, 31 
», the swallow, 31 
»» the squirrel, 32 
», the badger, 32 
», the hedgehog, 32 
», the rabbit, 32, 33 
»» the mole, 34 
», the bat, 34 
the rat, 34 
Fossil, diptera, 1-6 
Frenzius, 8 
Fungus gnats, 92 
G. 
Galls, formed by Cecids, 71 
Geographical distribution of Bibi- 
onidze, I 
Geographical distribution of Cecids, 49 
