Chinese name: ticks Amon : chelicerae subphylum Chelicerata ;
another name: ticks, lice flat, grass crawling child ; Gang: Arachnida Arachnida pets question and answers,www.5d2d.com
industry: animal kingdomsubclass: Acari Acarina pets question and answers,www.5d2d.com
door: Arthropoda Arthropoda head: Ixodida pets question and answers,www.5d2d.com
Edit this section | Back to top form oval-shaped parasites, blood-sucking front and not flat, the back slightly elevated, adult body length of 2 ~ 10mm; swollen after the blood meal, such as red bean or castor-oil plant pock-like, and the larger up to 30mm. Table quality leather, the back or a chitin-based shield plate. Worm jaw body and the body divided in two parts.
1. Ixodes jaw body (round 19-2), also known as false head, in front of the body, can be seen from the back, by the jaw base, chelicerae, the mouth of the plate and be formed limbs. Jaw base and connected to the front of the body, is a demarcated area of ??ossification, hexagonal, rectangular or square; female ticks back jaw base 1 to the hole area, feel and function of the secretion of body fluids to help spawn. Chelicerae 1 on the back of the central base out from the jaw, is an important thorn cutting device. Mouth of the plate 1, in the ventral chelicerae, and the formation of oral close up when the chelicerae. Mouth of the plate inverted ventral teeth, fixed in time for the blood-sucking the skin of the host attachment organ. Chelicerae of both sides of the limb to be from the four components, the first four short, Section 3, inlay for a small depression in the ventral end. pets question and answers,www.5d2d.com
body (Figure 19-3) showed a pocket, mostly brown, bilaterally symmetrical. Male ticks on the back of the shield plate covering almost the entire back of the female ticks of the shield plate body
back only the front part of some ticks in the back edge of the shield plate called the edge of the formation of different floral crib (festoon). Ventral surface (Figure 19-4) has four pairs of feet, each foot 6, that the base section, transfer section, femur, tibia, tarsus and post-tarsus. There is usually away from the base section. Ⅰ foot dorsal tarsus proximal part with Harrington device (Haller's organ), with olfactory function, the end of a claw and one pair of cushion between the sudden a claw. Genital pore in the first half of ventral surface, often in the first Ⅱ, Ⅲ level section of the foot base line. Anus in the back of the body, often anal groove. Valve pair, in the foot section of the posterolateral base Ⅳ, valve plate wide. Male ticks ventral chitin plates, because the base number of different species of ticks. pets question and answers,www.5d2d.com
2. Soft ticks jaw (Fig. 19-5) in the ventral body from the back of the invisible. The back of the jaw-based non-porous areas. Body back without the shield plate, granular surface mostly small warts, or a wrinkle, disk-shaped depression. Valve plate is small, located before the top of the base section Ⅳ. Genital pore in front of ventral, gender characteristics are not significant. Anus is located in the central body or later, there are still some soft ticks before anal and postanal groove in the groove and transverse postanal groove, which are located around the anal side. From the base section are no thorns, although tarsus claws, but no paw pads. Adults and nymphs Ⅰ ~ Ⅱ foot base section between the base section of the gland openings. The base section of gland fluid secretion, regulation of water and electrolytes and the role of hemolymph components. In the vampire, the pathogens with the base section of gland fluid secretion caused by infected wounds contaminated host, for example, is a blunt edge of some species of ticks. Edit this section | Back to top growth of life points during the development of egg, larva, nymph and adult four times. After mating the adult vampire floor, crawling in the grass, roots, housing, etc., lay their eggs in cracks in the surface. After spawning the female ticks that dry out and die, the male may mate several times ticks life. Spherical or oval-shaped eggs, about the size of 0.5 ~ 1mm, the color yellow to brown, often heap integrated group. Under optimum conditions the eggs can hatch in 2 to 4 weeks, larvae. Larvae shape of nymphs, but the body is small, there is sufficient 3 on 1 to 4 weeks after the larvae molt to nymphs. Ixodes nymphs only one, after the soft tick nymphs ranging from 1 to 6. Nymphs have four pairs of feet, no gonopore (Figure 19-6). To the host who suck blood, and then fall by 1 to 4 weeks and molt into adults. Ixodes complete life history generation time from 2 months to 3 years; Most soft ticks require six months to two years. Ixodes life from one month to several months ranging from; soft adult ticks lay eggs several times as many blood-sucking and, generally live five to six years to several decades. pets question and answers,www.5d2d.com
tick life cycle has replaced the host in the phenomenon, according to the number of replacement host can be divided into four types: ① single-host ticks: a developmental stages are the main places on the floor after the blood meal, females lay eggs . Such as micro-Boophilus (Boophilus microplus). ② two host ticks: larvae develop into nymphs in a hostel on the subject, and other places in the main body of the adult parasite. Such as residual edge glass eye ticks (Hyaloma detritum). ③ three host ticks: larva, nymph, adult subject at three places on the parasite. Such as Ixodes persulcatus, Dermacentor ticks. 90% of the ticks for the three host ticks, tick-borne diseases, most important medium is a three host tick (Figure 19-7). ④ more host ticks: larva, nymph and adult of age and female ticks lay their eggs before they each need to find the host blood-sucking parasites, each full of blood left. Soft ticks usually are considered more host ticks.
