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Contents
The Journal of Arachnology - 1990
Volume 18 Number 1 - pp. 1-121

Featured Articles

Spiders in United States field crops and their potential effect on crop pests

Observations on the natural history of a New England population of Sphodros niger (Araneae, Atypidae)

Water and hemolymph content in the wolf spider Lycosa ceratiola (Araneae, Lycosidae)

Karyotypes of seventeen USA spider species (Araneae, Araneidae, Gnaphosidae, Loxoscelidae, Lycosidae, Oxyopidae, Philodromidae, Salticidae and Theridiidae)

El comportamiento agonistico de hembras adultas de Lycosa tarentula fasciiventris (Araneae, Lycosidae)

Is it the size that counts? Palp morphology, sperm storage, and egg hatching frequency in Nephila clavipes (Araneae, Araneidae)

The size of spider eggs and estimates of their energy content

A new species of Linothele from Colombia (Araneae, Mygalomorphae, Dipluridae)

The effect of time and temperature on disturbance behaviors shown by the orb-weaving spider Uloborus glomosus (Uloboridae)

Two new species of Ishnothele funnelweb spiders (Araneae, Mygalomorphae, Dipluridae) from Jamaica

Research Notes

An example of partial duplication of the abdomen in Neobisium simoni (Pseudoscorpiones, Neobisiidae)

A new specimen of Microtityus ambarensis (Scorpiones, Buthidae), fossil from Hispaniola: Evidence of taxonomic status and possible biogeographic implications

A zygomycetous fungus as a mortality factor in a laboratory stock of spiders