TMEN513 lab exam Tick and mites
Student name: Rattanalak Jittungdee ID: 6438165
Question 1: What is the respiratory organ of the suborder Astigmata? How do they breathe?
Answers: The suborder Astigmata are non-existent in the external openings; in the Astigmata gas exchange is through the integument.
Question 2: What is the difference between hard ticks and soft ticks? How do you differentiate between male and female hard ticks?
The difference between hard ticks and soft ticks:
– Hard ticks have a “plate” on their back that is called a scutum. Also, hard ticks have mouthparts that are visible when the tick is viewed from above.
– Soft ticks appear to have a wrinkled body; lack a scutum, mouthparts are located on the underside of the body so that the front portion of the tick’s body hides the mouthparts.
The differentiate between male and female hard ticks: Hard tick adult males and females have different coloration and females are somewhat larger than males.
Male hard ticks have an inflexible scutum that spans the entire top side or dorsal surface; among females, the scutum or dorsal shield is less than half the size of males and is limited to a small region directly behind the head (capitulum).
Question 3: Please describe how you characterize the mites (at least two groups).
Answer: Mite, any of numerous species of tiny arthropods, members of the mite and tick subclass Acari (class Arachnida), that live in a wide range of habitats, including brackish water, fresh water, hot springs, soil, plants, and (as parasites) animals, including humans.
– House dust mites (Dermatophagoides sp.) are globular in shape, clear to creamy white in color, with hairs on their legs and body. They are a small mite, cuticle finely or coarsely wrinkled, and has anus sucker ventral; in males, the genital organ located between last 2 pairs of legs; in the female has reverse Y or V-shape vulva.
– Follicle mites (Demodex folliculorum) are very small mites, have elongated, semi-transparent bodies made up of two fused segments, with the first segment having 8 stumpy legs attached; legs are located together on the anterior part of the body. The body is covered in scales that help them attach to your hair follicles. Demodex mites have mouthparts designed to consume skin cells, oil, and hormones found in your hair follicles.