Dichotomous key to the Class “Insecta” 1A. Insect has wings that extend outward from the body-Go to 2
B. Insect has wings folded tightly against abdomen or no wings-Go to 5
2A. Insect has one pair of wings-Go to 3
B. Insect has two pairs of wings-Cordulla aenea
3A. Legs are longer than body-Tipula abdominalis
B. Legs are shorter than body-Go to 4
4A. Insect has rounded abdomen-Musca Domestica
B. Insect has sharp, pointed abdomen-Vespula squamosa
5A. Wings are folded over abdomen-Go to 8
B. No wings are present-Go to 6
6A. Abdominal appendages are present-Go to 7
B. Abdominal appendages are absent-Tapinoma sessile
7A. Abdominal pincers are present-Forticula Auricularia
B. Three abdominal appendages are present-Lepsima saccharina
8A. Antennae much shorter than body length-Go to 9
B. Antennae as long as body-Blattella vaga
9A. Pincers present on head region-Lucanus capreolus
B. No pincers present on head-Go to 10
10A. Large and rounded abdomen-Coccinella septempuntata
B. Long and slender abdomen-Go to 11
11A. Front legs are adapted for grasping-Mantis religiosa
B. Front legs are adapted for walking-Stethophyma gracile