This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Environment and health, Subject name: Social & Preventive Medicine
Not a feature of Anopheles is 
Select and explain. 
A. Spotted wings, B. Siphon tube seen in larvae, C. Boat shaped eggs, D. Rest at an angle, inclined to the surface
B: Siphon tube seen in larvae
Answer: B: Siphon tube seen in larvae 
Explanation: Description: Anopheles mosquito: Causes malaria and filaria Breeding habitat: Clean water Eggs laid singly with boat-shaped lateral floats Larvae have no Siphon tube; rest parallel to the undersurface of water Pupae have a broad and sho siphon tube Adults are inclined at an angle to the surface and with spotted wings Can fly 3-5 km Sophisticated mosquitoes Park's Textbook of Preventive and Social Medicine, 25th edition, Page No. 831