We have recently published an analysis of 188 case reports of Asp Caterpillar envenomations. Please see Eagleman, DM (2008). Envenomation by the Asp Caterpillar, Megalopyge Opercularis. Clinical Toxicology, 46(3):201-5...
neuro.bcm.edu/eagleman/asp/ neuro.bcm.edu/eagleman/asp/
1. (A-C) The Asp Caterpillar, Megalopyge opercularis, can vary in color from white to gray to brown, but is easily recognized by its fuzzy appearance and teardrop shape. (D-F) Encounters with asp caterpillars are unmistakably evidenced by a grid-like pattern of erythematous spots at the site of contact.
neuro.bcm.edu/eagleman/papers/Eagleman%20Asp%20Caterpil... neuro.bcm.edu/eagleman/papers/Eagleman%20Asp%20Caterpillar%20Clinical%20Toxicology.pdf
Common Name: Puss caterpillar or "asp"; Scientific Name: Megalopyge opercularis (J. E. Smith); Order: Lepidoptera ... Pest Status: The caterpillar is called an "asp" by Texans, although there are other caterpillars that also produce a painful skin rash from contact with venom containing spines.
insects.tamu.edu/fieldguide/cimg256.html
PEST PROFILES: MOTH AND BUTTERFLY CATERPILLARS ... ; Puss Caterpillar; Flannel Moth; Click on image to view larger. ... Picture of Puss caterpillar...
hortipm.tamu.edu/pestprofiles/chewing/asp/asp.html hortipm.tamu.edu/pestprofiles/chewing/asp/asp.html
Megalopyge opercularis - Wikipedia, the free encyclopedia
The moth Megalopyge opercularis has numerous common names, including southern flannel moth , pussy moth , puss caterpillar , tree asp , and, asp caterpillar . It is visually striking i...
en.wikipedia.org/wiki/Megalopyge_opercularis
Introduction· Centipede and Millipede Bites· Human and Mammal Bites· Insect Stings· Marine Bites and Stings· Mite Bites· Other Arthropod Bites· Other Reptile Bites·Puss Moth Caterpillar (Asp) Stings· Scorpion Stings· Snakebites· Spider Bites· Tick Bites...
www.merck.com/mmpe/sec21/ch325/ch325e.html
The venomous puss moth caterpillar (also called the asp) is present in the southern United States. It is teardrop shaped and has long silky hair, making it resemble a tuft of cotton or fur. When an asp rubs or is pressed against a person's skin, its venomous hairs are embedded, causing usually severe burning and a rash.
www.merck.com/mmhe/sec24/ch298/ch298h.html
Caterpillar stages of moths often have spines and barbed hooks. Generally, these are for show and are quite harmless. But there are a few Stinging caterpillars of various shapes, sizes and colors. Stinging caterpillars possess hollow quill-like hairs, connected to poison sacs, that are used as defensive weapons.
www.ca.uky.edu/entomology/entfacts/ef003.asp www.ca.uky.edu/entomology/entfacts/ef003.asp
Searching through the leaves, I discovered the furry caterpillar. I started walking toward the house which was about 500 feet away. Before I got that far, the pain had migrated up my arm to my elbow and my fingers ... Thumbnail #1 of Puss Moth Caterpillar, Asp, Southern Flannel Moth (Megalopyge opercularis) by ceejaytown...
davesgarden.com/guides/bf/go/356/
The one-inch Puss Moth caterpillar (see photo top of page on the right), known to Bexar County folks as the "asp," is covered with a dense wooly coat of soft brown hair that lies flat against the body, with tail-like hairs at the rear end. ... Puss Caterpillar, or "Asp"
bexar-tx.tamu.edu/IPM/Landscape/F1/nStingingCaterpillar... bexar-tx.tamu.edu/IPM/Landscape/F1/nStingingCaterpillars.htm
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