Transcript: New from BookNet Canada for 2024: BNC CataList - Tech Forum 2024
Insect Morphology And Identification Carlton
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2. Rice Insects Taxonomy and Morphology: Personal Details of Some Old and New Foes Dr. Chris Carlton, Louisiana State Arthropod Museum LSU AgCenter, Dept of Entomology 9 to 9:45 am
7. Rice water weevils: family Curculionidae http://www.padil.gov.au/pbt/files/uall/38RWW.jpg http://www.aragriculture.org/images/insects /rice/ricewaterweevillarva.jpg Adult Larva Lissorhoptrus oryzophilus Kuschel Lissorhoptrus simplex (Say) + 17 others in Central and South America
8. How to distinguish L. oryzophilus and L. simplex Have a look at this part of the hind leg (metatibia). L. oryzophilus L. simplex
9. What do rice water weevil larvae use to inflict feeding damage on rice? Like a combination of pointed, cutting, and gouging chisels. Mandibles Larval head, bottom view.
10. Rice water weevils cannot breath water, but live under it. How do they breath? Like a can opener + scuba gear, sorta. Larval spiracle used to access air pockets inside stem.
11. Rice levee billbug: family Curculionidae Sphenophorus spp. At least nine species occur in Louisiana. Species identification is important.
12. Colaspis leaf beetles: family Chrysomelidae Adult Larva
13. Their respective male sex organs (aedeagus). Colaspis louisianae Blake Colaspis brunnea (F.) Distinguishing Colaspis species
14. Colaspis feeding damage in Louisiana rice seems to mainly be caused by C. louisianae
15. And now for some good news, lady beetles: family Coccinellidae What people usually think of…
16. … but a lot of lady beetles are quite small and drab in appearance Diomus terminatus (Say)
17. … and are important as natural control agents of aphids. What is this Diomus larva doing to consume the aphid? Photo series, M. Ferro and W. Akbar Mandible
18. + + Piercing body wall, injecting digestive fluids, sucking down liquified contents… Like a combination of tongs, a syringe, and a shop vac.
23. Dissection reveals a more complex apparatus. The beak comprises six individual components. Labrum=upper lip Mand. stylets=catheter Max. stylets=straw Labium=sheath
24. Southern green stink bug: family Pentatomidae http://insects.tamu.edu/images/insects/color/sgstink1.jpg Nezara viridula (L.) Adult Immature (nymph) http://ipm.ncsu….Southern_green_stink_bug_nymph2.jpg Compare with: green stink bug, Acrosternum hilare (Say) http:// www.ent.iastate.edu/.../greenstinkbug.html