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San Diego State University - Terrestrial Arthropods Collection (SDSU-TAC)

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The SDSU Terrestrial Arthropods Collection includes an estimated 50,000 specimens of pinned insects, a slide-mount collection, and many terrestrial arthropods (e.g., insects, arachnids, myriapods) preserved in ethanol. Most of these specimens were collected in southern California and adjacent regions (e.g., Arizona, Baja California Mexico). The collection holdings in Arachnida, Orthoptera, Lepidoptera, and Coleoptera are particularly strong. The collection is an important resource for both the teaching and research missions of the Department of Biology at SDSU, with a synoptic collection of local insects kept specifically for this purpose.

Contacts: Marshal Hedin,
Collection Type: Preserved Specimens
Management: Live Data managed directly within data portal
Global Unique Identifier: 97f7c0f0-6e77-43f4-9254-05c0c99d9073
Digital Metadata: EML File
Rights Holder: SDSU Terrestrial Arthropods Collection
GBIF Dataset page:
Cite this collection:
San Diego State University - Terrestrial Arthropods Collection. Occurrence dataset (ID: 97f7c0f0-6e77-43f4-9254-05c0c99d9073) accessed via the Ecdysis Portal,, 2024-05-24).
Collection Statistics
  • 4,402 specimen records
  • 4,384 (100%) georeferenced
  • 254 (6%) with images (473 total images)
  • 4,365 (99%) identified to species
  • 10 families
  • 31 genera
  • 111 species
  • 118 total taxa (including subsp. and var.)
Extra Statistics
Show Geographic Distribution
Show Family Distribution