Biology of Ticks, Volume 1This is the first volume of a two-volume work on the basic biology, ecology, disease transmission and control of ticks. Ticks are parasitic insects that infect cattle, birds and people. The health and economic consequences of ticks are so considerable that most land- grant universities have tick laboratories associated with their entomology departments. In addition, state and federal health officials are concerned with disease transmission by ticks. This first volume covers the anatomy, functional morphology, physiology, reproduction, development and ecology of ticks. The descriptions are comprehensive and fully up-to-date. Entomologists, and in particular tick specialists (acarologists), as well as public health officials, will find this work of interest. It will also be extremely useful to advanced students beginning research in these fields. Volume 2 will focus on ticks and disease, with sections on immunological response to tick parasitism, and the control of ticks and disease. |
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Page 77
Situated dorsal to the hypostome are the 2segmented cheliceral digits , relatively
massive , short structures which bear laterally directed cutting edges . Their
movements result in a ripping and tearing action against the host skin . The
medial ...
Situated dorsal to the hypostome are the 2segmented cheliceral digits , relatively
massive , short structures which bear laterally directed cutting edges . Their
movements result in a ripping and tearing action against the host skin . The
medial ...
Page 123
These paired organs comprise three parts , ( 1 ) a bulbous muscular base , the
cheliceral base , ( 2 ) an elongated shaft , and ( 3 ) the cutting digits . The
cheliceral base ( 1 ) is a large , club shaped section of the appendage which
contains the ...
These paired organs comprise three parts , ( 1 ) a bulbous muscular base , the
cheliceral base , ( 2 ) an elongated shaft , and ( 3 ) the cutting digits . The
cheliceral base ( 1 ) is a large , club shaped section of the appendage which
contains the ...
Page 125
7.7 Hypostome , cheliceral digits , and adjacent palp ( article III ) . Note the
membrane - like structure ( arrow ) immediately above the center of the
hypostome . The pair of folded structures above the cheliceral digits are the
cheliceral sheaths .
7.7 Hypostome , cheliceral digits , and adjacent palp ( article III ) . Note the
membrane - like structure ( arrow ) immediately above the center of the
hypostome . The pair of folded structures above the cheliceral digits are the
cheliceral sheaths .
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Contents
INTRODUCTION | 3 |
EVOLUTION AND SYSTEMATIC RELATIONSHIPS OF TICKS | 13 |
ECOLOGY OF NONNIDICOLOUS TICKS | 23 |
Copyright | |
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Common terms and phrases
acids acini activity addition adjacent adults Amblyomma appear argasid ticks aspect attached behavior believed blood meal canal cavity cells changes Chapter characteristic cheliceral complex concentrations consists contain cuticle cycle cytoplasm Dermacentor described digestion digits dorsal duct ecdysteroids eggs electron engorged et al evidence extend fat body feeding females Figure fluid folded Following function genital genus glands granules groove hemolymph highly hormone host hypostome illustrating important increase indicate insects ixodid ticks known larvae lateral layer lipid located lumen males mated material Measurement bar membrane micrographs midgut muscles nerve noted numerous nymphs occur oocytes organ Ornithodoros outer oviposition paired period permission pheromone plate pore posterior production protein region representative response role salivary glands secretion segment sensilla showing similar Sonenshine species stage structure studies suggest surface surrounding synganglion tissues tubules types unfed variabilis ventral wall weight