·Adult - thorax, legs and veins on the wings are always covered with brown scales.
·Dull in colour. The tip of the abdomen is always blunt.
·Larval rest 45 degree from the surface of the water

·Habitat - mainly breed in paddy field, polluted stagnant water and drains.
·Biting rhythm - bite at night and usually rest indoor before and after the blood meal.     Sometimes they may rest outdoor.
·Prefer darker colours
·Long distance fliers
·Main vector for Japanese B - Encephalitis