Question

General entomology - please answer all questions

Which Paleopterous order(s) do(es) not feed as adult? 2. Give the correct order name for webspinners, 3. Give the correct entomological term for the front wings of the Orthoptera 4. Give the correct entomological term for the "ogg case" of the Blattodea 5. How do the wings of a kissing bug differ from those of a grasshoppers ? How do the ventral nerve cord of orthorteroids differ from that of hemioteroids? 7. Where are you likely to find the tympanum ofan Ensifera?

Answer 1

1)

Ephemeroptera is a group of 2,000 insect species commonly known as mayflies. They are considered to be part of the clade Uniramia which includes silverfish and dragonflies, among others. Ephemeroptera and Odonata are the only extant orders of winged insects in the infraclass Paleoptera. All other insects with wings are in the Neoptera, and are characterized by a wing articulation (joint) that allows them to fold their wings back over their abdomens at rest (Carpenter, 1992). Ephemeroptera are aquatic insects that often go through many nymph stages (living in water) and two flying stages (the subimago and the imago). They are the only insects to have two flying stages, and can be recognized by their three caudal filaments (tails) at the tip of the abdomen, and a single claw on each leg. This differentiates them from the closely related stoneflies which have two tarsal claws. The flying stages are characterized by relatively large forewings, which are usually kept upright, and reduced or nonexistent hind wings. 2)The order Embioptera, commonly known as webspinners or footspinners, are a small group of mostly tropical and subtropical insects, classified under the subclass Pterygota. The order has also been called Embiodea or Embiidina.[3] More than 400 species in 11 families have been described, the oldest known fossils of the group being from the mid-Jurassic. Species are very similar in appearance, having long, flexible bodies, short legs, and only males having wings. Webspinners are gregarious, living subsocially in galleries of fine silk which they spin from glands on their forelegs. Members of these colonies are often related females and their offspring; adult males do not feed and die soon after mating. Males of some species have wings and are able to disperse, whereas the females remain near where they were hatched. Newly-mated females may vacate the colony and found a new one nearby. Others may emerge to search for a new food source to which the galleries can be extended, but in general, the insects rarely venture from their galleries. 3)Orthoptera are an order of insects. ... "Ortho" means "straight", so "Orthoptera" means "straight wings". This means the front wings, called tegmina, are stiff, straight, and not used for flying. The back wings are membranous and are folded like a fan under the front wings when the insect is not flying. 4)Eggs are carried in an egg case, or ootheca, by the female until just before hatch occurs. The ootheca can be seen protruding from the posterior end (genital chamber) of the female. Nymphs will often hatch from the ootheca while the female is still carrying it. A typical egg case contains 30 to 40 eggs.