Ticks and Disease |
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Page xii
69 . Variation in egg size of different tick species . 188 Fig . 70 . Shell membranes
of the egg of Ornithodoros moubata ( a ) at 0 – 1 days after laying , ( b ) after
incubating for 6 days at 25°C . 189 Fig . 71 . Gené ' s organ of Ixodes hexagonus
in ...
69 . Variation in egg size of different tick species . 188 Fig . 70 . Shell membranes
of the egg of Ornithodoros moubata ( a ) at 0 – 1 days after laying , ( b ) after
incubating for 6 days at 25°C . 189 Fig . 71 . Gené ' s organ of Ixodes hexagonus
in ...
Page 190
Gené ' s organ of Ixodes hexagonus in retracted condition . ( i ) body of organ ; ( ii
) retractor muscle ; ( iii ) rod ; ( iv ) retractor muscle attached to rod ; ( v ) ventral
horn ; ( vi ) dorsal horn ; ( vii ) retractor muscle . Fig . 72 . Gené ' s organ of ...
Gené ' s organ of Ixodes hexagonus in retracted condition . ( i ) body of organ ; ( ii
) retractor muscle ; ( iii ) rod ; ( iv ) retractor muscle attached to rod ; ( v ) ventral
horn ; ( vi ) dorsal horn ; ( vii ) retractor muscle . Fig . 72 . Gené ' s organ of ...
Page 222
The perception of odours by Haller ' s organ is reinforced by a group of sensillae
at the apex of palpal segment IV . These are of the chemoreceptor type , being
slightly curved , with rounded extremities and thin , delicate walls ( Figs . 77a , b )
.
The perception of odours by Haller ' s organ is reinforced by a group of sensillae
at the apex of palpal segment IV . These are of the chemoreceptor type , being
slightly curved , with rounded extremities and thin , delicate walls ( Figs . 77a , b )
.
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Contents
INTRODUCTION | 1 |
CUTICLETHE KEY TO Tick ADAPTABILITY | 10 |
EXTERNAL FEATURES OF SOME ECONOMICALLY IMPORTANT SPECIES | 27 |
Copyright | |
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Common terms and phrases
activity adults Africa Amblyomma andersoni animals appear areas associated attached Babesia base basis become bite blood body broad capitulum cattle cells cheliceral closely colour complete coxa cuticle cytoplasm Dermacentor disease distribution dogs dorsal drop effects eggs engorged evidence external feeding female fever fluid frequently further glands grooves hairs hard host humidity hypostome increase infection inner Ixodes known larvae lateral layer Lees legs length less male margin moubata moulting muscles narrow natural nymphs observed occur organ outer pair parasites pass period plate posterior present produced range records region relative remain reported ricinus rickettsiae rounded salivary scutum seasonal secretion segment sheep short shown side similar skin slightly species spur stages suggested surface takes temperature ticks tissues transmission transmitted unfed vector ventral virus wall weight