Neco 2025 Biology Question 41

A terrestrial insect is observed with the following characteristics: three pairs of legs, two pairs of membranous wings, the hind wings are reduced to halteres, mouthparts are a sucking proboscis, compound eyes are large, and antennae are filamentous. Using the dichotomous key below, identify the specimen to species level and give its full taxonomic classification (phylum to species). Dichotomous key: 1a. Hind wings reduced to halteres … go to 2. 1b. Hind wings not reduced … other orders. 2a. Wing possesses a distinct dark spot at the tip … go to 3. 2b. Wing without dark tip spot … other families. 3a. Larva aquatic with a breathing siphon … Family Culicidae. 3b. Larva terrestrial … other families. 4a. Adult has white bands on the legs … Genus Aedes. 4b. Adult lacks white bands … other genera. 5a. Abdomen bears lyre‑shaped markings … Species *Aedes aegypti*. 5b. Abdomen without lyre markings … other species.