The general morphological features of insects include:
(1) Three pairs of legs. One pair is attached to each of three thoracic segments.
(2) One pair of segmented antennae.
(3) Two pairs of wings -- a total of four wings. There are some orders of insects without wings and some orders with only one pair. The wings are attached to the thoracic region, not to the abdomen as many people erroneously believe.
| Web Assignment: Review Groups of Arthropods |
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Review the general features of the various groups of arthropods. From your notes and readings you should be able to fill in the following table with the five groups of arthropods we studied. You needn't put this on your learning journal, but you should be able to print it out and fill in the matrix from memory.
| Group of Arthropoda |
Common Name, Examples |
Number and names
of body regions |
Number of pairs
of legs |
Number of pairs
of antennae |
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Entomology Department > Courses > Ent 201 > Course Content