TAMU ENTO 208 - Hexapoda (4 pages)

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Hexapoda



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Hexapoda

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Brief overview of many members of the category insecta under Hexapoda and their characteristics


Lecture number:
4
Pages:
4
Type:
Lecture Note
School:
Texas A&M University
Course:
Ento 208 - Veterinary Entomology
Edition:
1

Unformatted text preview:

ENTO 208 1st Edition Lecture 4 Outline of Lecture 3 I External Anatomy a Head b Eyes c Mouth parts d Thorax e Legs f Antennae g Abdomen Outline of Lecture 4 I Evolution II Hexapods a Insecta i Examples of individuals in insecta Lecture 4 TA lecture powerpoint on eCampus on Sept 10 is not the correct powerpoint Evolution Evolutionary Theory a conceptual model that explains the form function and diversity of life Evolution change in the allele frequency in a pop over generational time How does allele frequency change Mutations sexual reproduction Random genetic drift through chance only some of the population survives to reproduce through chance Genetic drift has greater effect on small populations because of the smaller gene pool Natural Selection alleles producing advantageous traits over other alleles survive to reproduce Hexapods non insect hexapods Insecta apterygota a no pterygota wings pterygota These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute paleoptera paleo old tera wing neoptera new wing can fold wings onto back hemimetabola half metabolism incomplete metamorphosis holometabola complete metamorphosis Glue peg spring tail Structural featuresfurculum retinaculum collophore Delusory Paratosis convinced that you are infested with bugs and they are living on you Won t listen to evidence Spring tails are often picked as the bug they are infested with because they are so small Thysanura silverfish fringe tailed like cool dry places eat cellulose don t track many illnesses 3 large caudal filaments primitive mouth parts doesn t sting or bite Paleoptera mayflies dragonflies NeopteraDermaptera earwigs Skin winged Non aggressive omnivores under logs and edges of house Pincer like cerci Rear their own young in a nest Forewing leathery cover for membranous hind wing Orthoptera straight wing fore wing is a tagmina Hind femur is enlarged for jumping Communicate by



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