Larval body type often called crawlers. Elongated, flattened body with prominent antennae and/or cerci; thoracic legs adapted for running.Example: lady beetle larva

Layer of epicuticle that protects the wax layer from heat or abrasion.

Paired sensory appendages on the rear-most segments of some "primitive" insects. In some cases, they may also serve as weapons or copulation aids.

The protective "shell" of protein covering the insect's egg that is secreted before oviposition by accessory glands in the female's reproductive system.

Pupal stage of holometabolous insects in which developing appendages (antennae, wings, legs, etc.) are held tightly against the body by a shell-like casing. Often found enclosed within a silken cocoon. Ex. Butterflies and moths

The portion of the preoral cavity between the hypopharynx and the labrum

In an embryo, the daughter nuclei cleavage products and their surrounding cytoplasm.

Facial sclerite located just below the epistomal suture

Pupal body type. Body is encased within the hard exoskeleton of the next-to-last larval instar. Example: Flies

A fleshy, peg-like structure found in Collembola on the ventral side of the first abdominal segment. It appears to maintain homeostasis by regulating absorption of water from the environment.

The dorsal, anterior region of the head capsule; equivalent to the forehead.

Suture along dorsal midline of head; runs backwards from the vertex along the top of the head

The basal segment of the leg, by means of which it is articulated to the body

The innermost layer of epicuticle that is composed of lipoproteins and chains of fatty acids embedded in a protein-polyphenol complex.