An outbreak of blister beetle poisoning in horses in Florida. Black fly . be destroyed by burning or burial. Maydell, G.G. If the cantharidin content of the beetles is known, information in Table 1 can be used to determine the approximate number of beetles that can kill an average-sized horse. The Navajo call this insect water carrier. The family Meloidae, the blister beetles, contains about 2500 species, divided among 120 genera and four subfamilies (Bologna and Pinto 2001). Blister beetles in the Southwest vary considerably in size and shape. They quickly attach themselves to a foolish male when he tries to mate with them. The importance of scouting alfalfa fields cannot be overemphasized. Meloidae: Blister Beetle (Megetra) Mesa Portales, September 2019. The Desert Is Bugged: Bug Lighting. Beetles in the genus Megetra advertise their toxicity with aposematic coloring. (Whitney Cranshaw, Colorado State University, Bugwood.org), Figure 8D. Blister beetles might congregate near field edges. Post-mortem examination usually shows blistering of the mouth, esophagus, stomach, and bladder. Follow. 1981. Take a look at our Animals index It seems to have a beetle like shell possible wings underneath, a head and neck that slink in and out like that of a slug and an Ant shaped head. types of blister beetles •Check crops before harvest. blister beetle. Good work, Minnesota! Always Backroads. Used with permission. Ideally, alfalfa hay should be harvested before it reaches full bloom, when blister beetles are most attracted to it. The pesticide recommendations in this publication are provided only as a guide. However, blister beetle swarms have been reported in isolated alfalfa fields in several counties in New Mexico as early as May and as late as October, requiring constant grower vigilance. Burke, C. 1985. 1968. Usually, a high-pressure liquid chromatographic method is used to determine the presence and amount of cantharidin in these samples. large ( > 500x500) Full Resolution. Adult blister beetle, Pyrota insulata. Posted in Photography | Tagged blister beetle, New Mexico, red and black | 1 Comment. Share this: Cantharidin Toxicity in Horses. * Braconid wasp 14. (Whitney Cranshaw, Colorado State University, Bugwood.org), Figure 9. (Illustration courtesy of Sandya Athigiman. – a female solitary bee, according to a year 2000 San Francisco State University news release, “‘Spanish Fly’ Beetles Use Sex and Subterfuge to Infiltrate Bee’s Nests.”  Collectively, with the precision of a military band, they march to the tip of their host plant stem, where they pose provocatively as a single female bee, displaying a phony sexuality, luring lusty male bees. (Illustration courtesy of Sandya Athigiman. In E.J. Close-up of tarsal claws from a blister beetle. The New Mexico alfalfa hay market is at risk when blister beetle poisonings occur. There are a total of (108) New Mexico Beetles found in the Insect Identification database. Aggregation formation and assortative mating in two Meloid beetles. The first pair of wings is soft and flexible. 1976. The genus Lytta is from a Latin word suggesting madness The specific nuttallii recognizes the contributions of Thomas Nuttall, a contemporary of Say.. NMSU and the U.S. Department of Agriculture cooperating. 41 notes. Oehme, F.W. To find more resources for your business, home, or family, visit the College of Agricultural, Consumer and Environmental Sciences on the World Wide Web at aces.nmsu.edu. The ash-gray blister beetle is about 1/2 inch long and is completely gray. Maydell, G.G. Many are conspicuous and some aposematically colored, announcing their toxicity to would-be predators. New Mexico, although the illustrations and text make ... * Bark beetle 9. Ray, A.C., L.O. Veterinary Pathology, 16, 18–31. page to © 2017 New Mexico State University - Board of Regents, College of Agricultural, Consumer, and Environmental Sciences, College of Agricultural, Consumer and Environmental Sciences (ACES), Poisonous Plants of New Mexico Rangelands, Russian Knapweed and Yellow Star Thistle Poisoning of Horses, Pocket Guide to the Native Bees of New Mexico, Pocket Guide to the Beneficial Insects of New Mexico. The blister beetle (Epicauta) is highly toxic to sheep and cattle, but primarily to horses. Southwestern Veterinarian, 961–962. Blister beetles: Equine killers found in horse-bound hay. This type of beetle can secrete a caustic chemical called cantharidin from its abdomen. (Source: Sorensen and Baker, 1983). Adult blister beetle, Meloe sp. Evolution, 39, 1123–1131. In other species, newborn larvae, called “triungulins,” pack themselves together by the hundreds in a single mass that mimics – and even smells like! 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