| Term | Explanation |
|---|---|
| Micropylar plate |
A distinct plate on the side of the egg, in which the micropyle is situated |
| Nymph |
An immature insect, looking rather like the adult except for its lack of wings |
| Ocellus |
A simple eye, found in the middle of the forehead |
| Order |
One of the groups into which a class is divided |
| Orthopterous |
Referring to insects which have toughened fore-wings, as in the order Orthoptera |
| Ostium |
A hole opening into the heart |
| Palp |
A small antenna-like structure attached to the mouth parts |
| Parthenogenesis |
The production of young from unfertilised eggs |
| Phasmid |
A general name for any of the Stick Insect group. derived from the name of the order, Phasmida. |
| Phylum |
One of the major groups into which the animal kingdom is divided. |
| Plantula |
A small pad underneath the tarsus |
| Regeneration |
The ability to regrow a lost structure |
| Segment |
One of a series of similar parts in the main body of an insect, often indicated by grooves or joints in the outer surface. |
| Spermatophore |
a small sac containing sperm used by some male insects during mating |
| Spiracle |
A hole through which air is taken into the body. |
| Tagma |
One of the main divisions of the insect body - head, thorax or abdomen. |
| Tarsus |
The 'foot' of an insect, usually divided into five parts |
| Terminalia |
The external structures which aid in mating and egg laying. |
| Thorax |
The middle part of an insect body, bearing the legs and the wings |
| Tibia |
The lower of the two main parts of an insect leg. below the 'knee' joint |
| Trachea |
A breathing tube |
| Trochanter |
A minute section of insect leg, lying between coxa and femur. |
| Ventral |
Describing the lower surface of a body. |