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Arachnological

Some Spiders

Click on the links below to see a picture of that spider:

  • Cyclocosmia torreya
    Cyclocosmia torreya, a trapdoor spider from the Panhandle of Florida. This spider is one of several species in the genus that are scattered from the southeastern United States to Mexico and China. The sculpturing on the abdomen is unique to the genus. "Colonies" are localized along the Apalachicola River near Tallahassee.
  • Sphodros abboti
    Purseweb spider, Sphodros abboti, from Georgia. This is a female and it lives in a silken tube (visible under the specimen). Prey is captured when the prey crawls on the outside surface of the tube, which is usually propped against the trunk of a tree. The spider bites through the tube and than cuts a slit in the tube to pull in the prey item. It later repairs the tube with new silk.
  • Loxosceles apachea
    A violin spider, Loxosceles apachea, from New Mexico. This is a close relative of the Brown Recluse, Loxosceles reclusa, and has a similar venom. The bite of violin spiders causes a necrotic area to develop at the site of the bite. The necrotic area takes several months to completely heal.
  • Scytodes sp.
    A spitting spider, Scytodes sp., from New Mexico. This spider is a relative of the violin spider. Both spiders have six eyes, unlike most others, which have eight eyes. The spitting spider is not known to be dangerous. The spiders "spit" a combination of gum-like material and venom from glands in the dome-like prosoma at prey, pinning it to the substrate and poisoning it at the same time.
  • Dysdera crocata
    Dysdera crocata, the European sowbug-eating spider. This specimen is from New Mexico, where it has become established. Recent studies indicate that these spiders do not specialize in sowbugs, but probably will take any prey they find in their habitat. Although it looks venomous, it does not appear to have a serious bite.
  • Latrodectus sp.
    Latrodectus sp., a widow spider from Bolivia. This species looks much like our native black widows. All widow spiders have neurotoxic venoms and should not be handled.
  • Latrodectus bishopi
    Latrodectus bishopi, the red widow, from the Sand Pine Scrub of Marion County, Florida. This widow spider is very localized in its distribution and is endemic to Florida.
  • Argyrodes nephilae
    Argyrodes nephilae a cleptopatrasite of Nephila clavipes in Florida.
  • Nephila clavipes
    Nephila clavipes, or Giant Silk Spider, feeding on beetle, with male attempting to mate, Alachua County, Florida.
  • Argiope aurantia
    Argiope aurantia, an orb-weaver, Alachua County, Florida. This spider is also known from New Mexico.
  • Schizocosa ceratiola
    Schizocosa ceratiola, formerly Lycosa ceratiola, a sand wolf spider from Highlands County, Florida. This species was the most common wolf spider on the nearly white sand at Archbold Biological Research Station.

Some Scorpions

Click on the links below to see a picture of that scorpion:

A Scorpion Relative


A pair of Horseshoe Crabs (really chelicerates, related to extinct sea scorpions) mating in the mudflats off Seahorse Key, Levy County, Florida.

Some Jumping Spiders

Click on the links below to see a picture of that Spider:

  • Metaphidippus chera
    Metaphidippus chera courtship pose (male on left).
  • Hentzia antillana
    Hentzia antillana male from Puerto Rico, one of the subjects of my revision of this genus.
  • Phidippus texanus
    Phidippus texanus female from eastern New Mexico.
  • Phidippus comatus
    Phidippus comatus male from New Mexico.
  • Phidippus arizonensis
    Phidippus arizonensis male from New Mexico (photo by G. B. Edwards).
  • Phidippus octopunctatus
    Phidippus octopunctatus, caught in the act of eating prey larger than itself in Pima County, Arizona.
  • Sassacus papenhoei
    Sassacus papenhoei, a beetle mimic from New Mexico and the subject, along with its relatives of my most recent revisionary project.
  • Naphrys xerophilum
    "Habrocestum" xerophila male from Florida. Another revision subject.