Guadalupe Mountains National Park
Arthropod Identification References

The following reference list is inserted for information purposes only. The materials do not specifically apply to the Park but persons wishing to identify, or learn more about, specimens or other arthropod artifacts found in the Park may find them useful. This list is not exhaustive. References to more technical material can often be found by consulting these sources. There are more orders of arthropods than covered in this listing. If you are unsure what you have or saw, consult the general guides for comparable photographs. If you can't find a reasonble match (you are unlikely to find an exact match), consult a general entomology textbook or someone with some expertise.

Authors often divide the country into two parts, the east and the west with the dividing line falling at 100 degrees west longitude. Since arthropods distributions are governed by real environmental factors rather than artificial designations like longitude lines, some species will naturally occur on both sides of this dividing line. Since the Park lies near this line, reference materials applicable to both the east and the west may be useful for the identification of arthropods found in the Park. Materials specifically for nearby states, especially New Mexico and Arizona, may also be useful.

Note: Most of these references do not in any way claim to be complete. Most of the species found in the Park will not be found in these references but the references will help you determine their identification and hopefully point you in the right direction if you want something more exact.

General Field Guides

General Field Guides
Guide to the Common Texas Insects by B.M. Drees and J.A. Jackman
Learn About ... Texas Insects from Texas Parks and Wildlife Press
Audubon Society Field Guide to North American Insects and Spiders
Simon and Schuster's Guide to the Insects
Peterson Field Guide to the Insects
Golden Guide (one to insects, one to plant pests)
any introductory entomology textbook will help you get started
Aquatic Invertebrates (more than just arthropods)
Freshwater Invertebrates of the United States by R.W. Pennak
Introduction to Aquatic Insects of North America by R.W. Merritt and K.W. Cummins

Order Specific Materials

Ephemeroptera (mayflies)
consult books on aquatic insects
for example: Introduction to Aquatic Insects of North America by R.W. Merritt and K.W. Cummins

Odonata (dragonflies and damselflies)
Note: Many species, but not all species, can be confidently identified visually
Dragonflies of North America by J.G. Needham, M.J. Westfall and M.L. May
Damselflies of North America by M.J. Westfall and M.L. May
Dragonflies through Binoculars by S. Dunkle

Phasmida (walkingsticks)
How to Know the Grasshoppers, Crickets, Cockroaches and their Allies by J. Helfer

Orthoptera (grasshoppers, katydids and crickets)
There are a number of issues surrounding the identification of grasshoppers.

The following problems are sited by Otte (1981) on page 3:
    sexes may differ in color, wing length and size (some display pronounced sexual dimorphism)
    geographic variation is a problem since background matching is important
    in some species several major color pattern morphs exist and varieties in each
    other variations may be present
    the visibility of some features may be affected by the color variant.
In addition the following should be noted:
    some species have long-winged and short-winged variants
    the colors of pinned specimens may differ significantly from those found in the field
    (compare Richman et al. with the drawings and Otte or the photos in the Wyoming database).

Identification References
How to Know the Grasshoppers, Crickets, Cockroaches and Their Allies by Helfer, J.R.
The North American Grasshoppers by Otte, D.
A Manual of the Grasshoppers of New Mexico by Richman, D.B. et al.
Singing Insects of North America (katydids)
Range Grasshoppers of Wyoming

Mantodea (praying mantids)
How to Know the Grasshoppers, Crickets, Cockroaches and their Allies by J. Helfer

Blattaria (cockroaches)
How to Know the Grasshoppers, Crickets, Cockroaches and their Allies by J. Helfer

Isoptera (termites)
How to Know the Grasshoppers, Crickets, Cockroaches and their Allies by J. Helfer

Hemiptera (true bugs)
no specific references - some of these cause agricultural problems
check with your local agricultural representatives

Homoptera (cicadas, leaf & plant hoppers, psyllids, whiteflies, aphids and scale insects)
no specific references - many of these cause agricultural problems
check with your local agricultural representatives

Neuroptera (nerve-winged insects)
no specific references

Coleoptera (beetles)
Peterson Field Guide to the Beetles

Diptera (flies or true flies)
Manual of Nearctic Diptera Vol 1 and 2 from Agriculture Canada
The Flies of Western North America by F. Cole

Trichoptera (caddisflies)
consult books on aquatic insects
for example: Introduction to Aquatic Insects of North America by R.W. Merritt and K.W. Cummins

Lepidoptera (butterflies and moths)
Note: Butterflies are the most completely covered group of insects.
Audubon Society Field Guide to North American Butterflies
Peterson Field Guide to the Butterflies of North America East of the Great Plains
Peterson Field Guide to the Western Butterflies
Butterflies through Binoculars - A Field Guide to the Butterflies of Eastern North America by J. Glassberg
Butterflies through Binoculars - the West by J. Glassberg
A Field Guide to the Butterflies of Texas by R. Neck
A Checklist of the Lepidoptera of Guadalupe Mountains National Park, Texas by E. Knudson and C. Bordelon
Peterson Field Guide to the Moths of Eastern North America
Peterson First Guide to the Caterpillars

Hymenoptera (bees, wasps and ants)
Bee Genera of North and Central America by C.D. Michener, R.J. McGinley and B.N. Danforth
The Ants by B. Holldobler and E.O. Wilson
Fire Ants by S. W. Taber
World of the Harvester Ant By S. W. Taber

Araneae (spiders)
Note: For exact identification, sexually mature spiders are usually required.
Spiders of North America - an identification manual editors D. Ubick, P. Paquin, P.E. Cushing and V. Roth c 2005
Spider Genera of North America by V. Roth - 3rd edition c 1993 (technical)
A Field Guide to the Spiders and Scorpions of Texas by J. Jackman
Golden Guide to the Spiders and Their Kin
Audubon Society Field Guide to North American Insects and Spiders

Other Arachnids (scorpions, harvestmen, ticks, sunspiders, etc.)
A Field Guide to the Spiders and Scorpions of Texas by J. Jackman
Golden Guide to the Spiders and Their Kin

Class Diplopoda (millipedes)
Golden Guide to the Spiders and Their Kin

Class Chilopoda (centipedes)
Golden Guide to the Spiders and Their Kin

Subphylum Crustacea (crustaceans including isopods - pillbugs, sowbugs)
Golden Guide to the Spiders and Their Kin

Links

Note: This is a personal web site and is not affiliated with the National Park Service or Guadalupe Mountains National Park. Contact information for the author, Ron Lyons, is accessible through the Index Page referenced below. Thank you.