Lab 9

Question 1

Is knowledge of specific anatomical characteristics necessary or not?

Answer 1

Depends on the Order of insects being examined, and the level of the ID Family, genus or species) knowledge of specific anatomical characteristics are necessary

Question 2

Order Odonata

Answer 2

dragonflies and damselflies).

Both the adult and the nymphs (which are aquatic) are predators.

They have 4 large, veined wings that generally stick out perpendicular to the body when at rest.

Question 3

Order Orthoptera

Answer 3

grasshoppers and crickets). Most have wings as adults, note the hind legs modified for jumping.

Question 4

Order Hemiptera

Answer 4

(“true” bugs).

This is a large group.

Often, their wings are folded across the back – they may be leathery, translucent, or both.

Sometimes the wings are tented over the back instead of overlapping.

Question 5

Order Coleoptera

Answer 5

(beetles).
This is the largest order of insects.

The first pair of wings is modified as a protective device, called elytra.

These wings meet in the middle rather than overlapping.

Question 6

Order Lepidoptera

Answer 6

(moths and butterflies).

Most are quite distinguishable by their fluttering nature – 4 wings, most often covered in scales.

Question 7

Order Diptera

Answer 7

(two-winged flies).

The hind wings are reduced to two small drumstick- like structures called halteres.

These sometimes mimic other groups, but are distinguishable by the presence of 2 wings rather than 4.

Question 8

Order Hymenoptera

Answer 8

(bees, wasps, ants and other important groups).

There are two pairs of wings (except ants, which vary), and often a distinct waist.