Myrmecocystus testaceus

Myrmecocystus testaceus is a species of honeypot ant found throughout the western United States and extreme south British Columbia. It is usually nocturnal, and nests in sand.^[1]

Myrmecocystus mexicanus
Myrmecocystus testaceus antweb.org specimen
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Formicinae
Genus:	Myrmecocystus
Subgenus:	Myrmecocystus
Species:	M. testaceus
Binomial name
Myrmecocystus testaceus Emery, 1893

They can spray formic acid from their gasters to melt skin tissue. Instead of stinging and swarming, they stretch their prey by the legs until it splits or dies from bites and formic acid.