What is the genus abbreviation for Anopheles mosquitoes?

The correct abbreviation for the genus Anopheles is "An." In the scientific naming convention used in taxonomy, genus names are often abbreviated to their initial letters or to the first few letters of the name for ease of reference. Anopheles is a well-known genus due to its relevance in the spread of malaria, and its abbreviation follows the typical format where only the first two letters represent the genus.

The other options provided do not represent the Anopheles genus; for instance, "Ana." could be misleading and is not a standard abbreviation. "Ae." refers to the genus Aedes, which includes other types of mosquitoes that are significant in disease transmission, such as dengue and Zika. "Api." is not commonly associated with a recognized mosquito genus and does not apply to Anopheles. Understanding these distinctions helps clarify the use of abbreviation in scientific contexts.