1What are the main characteristics adults in Subphylum Hexapoda?
3 tagamata, head, thorax, abdomen. 3 pairs of legs. none, one or 2 pairs of wings. Legs and wings on thorax only.
2Explain the development of Subphylum Hexapoda:
3 basic stages are egg, juvenile, adult. Stages are subdivided into stages that are separated by molts.
3What is another word for substages?
Instars
4What are the 3 main developmental patterns?
Ametabolous, Hemimetabolous, Holometabolous
5What is another word for adult form?
Imago
6What is Ametabolous Development?
Direct development, exhibited by wingless hexapods, juvenile instars identical to adults but are smaller and sexually immature. Imago continues to grow and molt after maturity
7What is Hemimetabolous Development?
Incomplete metamorphosis, juveniles look somewhat different from adults, wing pads develop progressively with each instar. Imago does not grow or molt.
8What is Holometabolous Development
Complete metamorphisis, Juveniles look entirely different from adults, worm like, pupa stage between last juvenile instar and imago.
9Name all classes from Subphylum Hexapoda:
Entognatha and Insecta
10Describe Class Entognatha:
Mouth parts recessed in a deep pocket in the head capsule. No wings.
11Name the order from Class Entognatha:
Collembola (Springtails).
12Describe Class Insecta mouthparts:
Mouth parts exposed, not recessed in a deep pocket (Ectognathous).
13What is the deep pocket where mouth parts may or may not be recessed into called?
Ectognathous
14Name all the Orders under Class Insecta
Thysanura, Odonata, Orthoptera, Hemiptera, Coleoptera, Lepidoptera, Diptera, Hymenoptera.
15Describe Order Thysanura:
Wingless, flat, carrot shaped, silverfish and bristletails.
16Describe Order Odonata:
Voracious predators, nymphs have raptorial labia, dragonflies and damselflies.
17Describe Order Orthoptera:
Enlarged hind legs for jumping, stridulating organs on legs or wings for producing courtship sounds, Herbivourous with chewing mouthparts.
18Describe Order Hemiptera:
Have piercing and sucking mouthparts, feed on plant juices, true bugs, hoppers, cicadas.
19Describe Order Coleoptera:
Elytra are thick, hard and opaque. Mouthparts used mostly for chewing plants, detritus, carrion. Beetles.
20Describe Order Lepitoptera:
Wings covered with overlapping scales, long proboscis for sucking nectar. Moths and butterflies.
21Describe Order Lepidoptera larvae:
Caterpillars with prolegs on abdomen.
22Describe Order Diptera:
One pair of wings, hindwings are reduced and called halteres, used for balancing. Mouthparts used for piercing, sucking or sponging. True flies.
23Describe Order Hymenoptera:
Chewing mouthparts modified for sucking, female ovipositor modified into a stinger. Ants, bees, wasps.