Animal Kingdom Question 92
92. Kala-azar and Oriental Sore are spread by
(a) Housefly
(b) Bed Bug [1990]
(c) Sand Fly
(d) Fruit Fly
Show Answer
Answer : c
Hints & Solutions
(c) Sand fly is the vector of Kala azar, causes severe liver infection. Sand fly adults are small flies - only about 3 $mm$ long - and are golden, brownish or gray colored. They have long, piercing mouthparts that are well adapted for sucking blood from their selected host. Sand flies hold their hairylooking wings in a vertical V-shape when at rest, a characteristic that distinguishes them from some other small flies. Also, the six legs on the adults are extremely long, being longer than the insect’s body.
