Ticks and Disease |
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Page 12
... whilst that of the alloscutum is thrown into deep folds . The depths of these folds in both I. ricinus and I. canisuga are about 12μ , but in I. canisuga the width from crown to crown is 5μ whilst in I. ricinus it is rather less than 3μ ...
... whilst that of the alloscutum is thrown into deep folds . The depths of these folds in both I. ricinus and I. canisuga are about 12μ , but in I. canisuga the width from crown to crown is 5μ whilst in I. ricinus it is rather less than 3μ ...
Page 232
... Whilst the location of the light receptors is not known with certainty in eyeless ticks , it can be said from their behaviour that " light reaching a tick from the front and sides is directed , whilst illumination from above or below ...
... Whilst the location of the light receptors is not known with certainty in eyeless ticks , it can be said from their behaviour that " light reaching a tick from the front and sides is directed , whilst illumination from above or below ...
Page 409
... whilst BHC ( 0.05 % y - isomer ) killed almost all the ticks , its residual toxicity was shorter than that afforded by a colloidal DDT preparation . More recently Blomefield ( 1959 ) reported that whilst toxaphene gave a satisfactory ...
... whilst BHC ( 0.05 % y - isomer ) killed almost all the ticks , its residual toxicity was shorter than that afforded by a colloidal DDT preparation . More recently Blomefield ( 1959 ) reported that whilst toxaphene gave a satisfactory ...
Contents
INTRODUCTION | 1 |
CUTICLETHE KEY TO TICK ADAPTABILITY | 10 |
EXTERNAL FEATURES OF SOME ECONOMICALLY IMPORTANT SPECIES | 27 |
Copyright | |
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activity Africa Amblyomma andersoni animals appear areas argasid Argasidae attached Babesia basis capituli bite body Boophilus broad capitulum cattle cells Cervical grooves cheliceral colour coxa coxal cuticle cytoplasm Dermacentor disease dogs dorsal view eggs endocuticle engorged epicuticle evertsi external spur feeding fluid fully fed genus granules Haemaphysalis hairs hard ticks hexagonus Hoogstraal host humidity Hyalomma hypostome infection Ixodes ricinus Ixodidae large number larvae larvae and nymphs lateral layer Lees legs length louping ill lumen male membrane microplus Milne moult muscles Nuttall nymphal nymphs nymphs and adults occur palp palpi parasites Parasitology pathogens period persicus pharynx Pomerantzev posterior margin punctations rabbits relapsing fever reported Rhipicephalus rickettsiae rounded salivary glands sanguineus scutum sheep soft ticks spermatophore spiracle Spiracular plate spirochaetes spotted fever spur on coxa surface tarsus tarsus IV temperature Theileria tick species tissues transmission transmitted transverse unfed females variabilis vector ventral virus whilst