In the dichotomous key provided, Anopheles mosquitoes can be distinguished from other mosquitoes listed based on the following characteristics:
1. Palps shorter than proboscis: Anopheles mosquitoes have palps shorter than their proboscis. This means that the structures near their mouth (palps) are shorter compared to their feeding organ (proboscis). This is a key distinguishing feature at the first step of the key.
2. Blunt abdomen tip: In the second step of the key, Anopheles mosquitoes are identified by having a blunt abdomen tip. This is in contrast to other mosquitoes which may have different characteristics at this stage of differentiation.
By following these specific characteristics in the dichotomous key, one can identify Anopheles mosquitoes from other types of mosquitoes. The key helps in a systematic way to categorize and distinguish different species based on observable traits.
