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Wildcliff Nature Reserve
Dedicated to
plant and wildlife conservation in South Africa's Cape Floral Kingdom
Arthropods of Wildcliff
South Africa exhibits
a wide diversity of insects and spiders, and many fascinating ones are
being found at Wildcliff. Our inventory of insects and spiders is an
ongoing project, and further research is invited (see the research page). One can view
photographs of some of them in a slideshow
--
just click on the image at right.
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Click on the photo
for more pictures
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Golden
orb-web spider, Nephila pilipes
fenestrata
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One of the
fascinating creatures you'll encounter in the slideshow is the
beautiful, shy, black-legged golden
orb-web spider, Nephila pilipes
fenestrata, pictured
at left in its unique yellow web.
This is a female, despite the hairy legs. The males are tiny - as
little as 1/1000 of the size of
females -- so they have to be careful lest they get eaten when seeking
to copulate. An amorous male will usually only approach the female when
she is occupied with feeding. He descends towards her and inserts his
sexual organs, called pedipalps, one by one, into her genital opening
which is situated underneath her abdomen. Copulation may take many
hours and afterwards the exhausted male retreats to a safe place away
from the female. To protect his
paternity, the male may break off his copulatory organs, leaving
fragments that obstruct the female's
genital openings.
More pictures of this and other arthropods in the slideshow.
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Insects of the World
Class:
Insecta
| Main Orders |
Meaning |
Est. number
of species
|
Examples |
| Coleoptera |
"hard
wings" |
400,000
|
Scarab beetles |
| Lepidoptera |
"scaly
wings" |
150,000
|
Butterflies |
| Hymenoptera |
"membrane
wings" |
130,000
|
Ants and Bees |
| Diptera |
"two
wings" |
120,000
|
Mosquitoes |
| Hemiptera |
"half
wings" |
82,000
|
Cicadas |
| Orthoptera |
"straight
wings" |
20,500
|
Crickets |
| Trichoptera |
"hairy
wings" |
10,000
|
Caddis Flies |
| Collembola |
"sticky
peg" |
6,000
|
Springtails |
| Odonata |
"toothed
flies" |
5,500
|
Dragonflies |
| Neuroptera |
"net-veined
wings" |
5,000
|
Lacewings |
| Thysanoptera |
"fringed
wings" |
5,000
|
Thrips |
| Blattodea |
"insect
avoiding light" |
3,700
|
Cockroaches |
| Pscoptera |
"milled
wings" |
3,200
|
Woodlice |
| Phthiraptera |
"louse
wings" |
3,000
|
Lice |
| Phasmatodea |
"like
a ghost" |
2,500
|
Walking Stick |
| Siphonaptera |
"tube
without wings" |
2,400
|
Fleas |
| Isoptera |
"equal
wings" |
2,300
|
Termites |
| Ephemeroptera |
"living
for a day" |
2,100
|
Mayflies |
| Piecoptera |
"wickerwork
wings" |
2,000
|
Stoneflies |
| Dermaptera |
"leathery
wings" |
1,800
|
Earwigs |
| Mantodea |
"like
a prophet" |
1,800
|
Praying Mantis |
| Mecoptera |
"long
wings" |
400
|
Scorpion Flies |
| Thysanura |
"bristle
tails" |
370 |
Silverfish |
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Spiders of the World
Class:
Arachnida
Order: Araneae
| Sub Orders |
No of Families |
Estimated # |
Examples |
| Labidognatha |
90
|
32,000
|
House Spiders |
| Orthognatha |
15
|
3,000
|
Tarantulas |
| Mesothelae |
1
|
24
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Segmented Spiders |
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Links & References
Books
- A Field
Guide to Insects of South Africa, by Mike Picker, Alan Weaving
and Charles Griffiths.*
- A
Fieldguide to the Dragonflies of South Africa, by Warwick and
Michele Tarboton (out of print).
- A
Fieldguide to the Damselflies of South Africa, by Warwick and
Michele Tarboton.*
- Freshwater
Invertebrates of Southern Africa (a 10-volume set).*
*In the Wildcliff Library
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