And if the bee happens to be a male, they wait to further transfer themselves on the body of a female bee. E. excavatifrons Maydell - Coastal Mississippi and Alabama, and south in Florida to Marion County. Adult hosts: Wide variety of plants, including many Asteraceae, and such crops as alfalfa, beet, and potato. Adult Epicauta fabricii (LeConte), the ashgray blister beetle. Blister beetles (Meloidae) are commonly confused with beetles in the family Oedemeridae (false blister beetles) (Arnett 2008) and the Tenebrionidae subfamily Lagriinae (long-jointed beetles). Other blister beetle larvae eat the larvae and provisions of ground-nesting bees. Larvae jump onto a passing bee, stowaway to the bee's lair, and then feed on bee eggs and bee larvae inside. The larvae of the common blister beetles are beneficial, since they destroy grasshopper egg pods. Consequently, alfalfa grown near rangeland has a greater likelihood of blister beetle infestation. Blister beetles. Some species specialize in eating grasshopper eggs, and for this reason, are considered beneficial insects. Bidens and "thistle" (Asteraceae). The larvae of blister beetles climb onto bees and hitch a ride to the bees’ nests where they proceed to eat the eggs and stored food. Larva from the second generation overwinters in the soil … Entomology Volume 12. The first blister beetle larval stage is highly mobile with well-developed legs. Beetles eat many different things including living plants, rotting plants, animals that may be dead or alive, and animal faeces. The female beetle doesn’t produce cantharidin so she receives small amounts when she mates. Blister beetle larvae are hypermetamorphic (meaning they change form during larval development) and only the active, first instar larvae (the triungulin stage) are typically seen above ground. Adult Epicauta vittata (Fabricius), the striped blister beetle. Blister beetles in alfalfa. For this reason, this type of metamorphosis is referred to as hypermetamorphosis. They’re also found in the grassland… When development resumes the muscles regenerate and, through ecdysis, the larva once again becomes scarabaeiform (second grub phase, SG); at this point it may or may not excavate a pupal chamber. The initial stage is the larval stage, which occurs right after hatching from their egg. Most adults eat only floral parts, but some, particularly those of Epicauta spp., eat leaves as well. Larvae jump onto a passing bee, stowaway to the bee's lair, and then feed on bee eggs and bee larvae inside. A revision of the genera. Rarely, a larva pupates directly from the C phase. 2001. September-October. University of California Press. Photograph by Lyle J. Buss, University of Florida. Blister Beetles There are about 2,500 species of blister beetle in the world, and about 410 of them are found in North America. A revision of the genus. 1979. Unfortunately, those larvae grow up to be leaf-eaters of the crops and flowers we like to eat and enjoy. When a male shows up ready to mate, the larvae … Catholic University Press, Washington, D.C. 1112 pp. Ray AC, Tamulinas SH, Reagor JC. Whether they feed on grasshopper egg pods or infest bee nests, older blister beetle larvae become increasingly sedentary as they molt and mature (… Their eggs are lay on flowers and larvae are parasitoids of bees. E. pensylvanica (De Geer) - the black blister beetle. Photograph by Lyle J. Buss, University of Florida. Nemognathine larvae are distinctive in having one to two (not four to five) stemmata on each side of the head, an ecdysial line on the thorax, and no pulvilli (bladderlike appendages). Others spend more time on the ground, laying eggs in the soil. The larvae of some species, however, can help agriculture by eating grasshopper eggs, thus reducing populations of those crop eaters. The larvae of some … Pseudozonitis longicornis (Horn) - Kansas and east Texas east along the Coastal Plain to South In the following list, seasonal distribution is not mentioned for species that are active in the adult stage from spring to late summer or early fall. Attracted to lights. N. punctulata LeConte - Bahama and Cayman islands, Cuba, Jamaica, and the southeastern U.S. E. funebris (=pestifera) Horn - the margined blister beetle. (March 2006). Photograph by James Castner, University of Florida. A list of the beetles of South Carolina. The name blister refers to the chemical cantharidin in their bodies. Pyrota limbalis LeConte - Washington, D.C., south to Highlands County, Florida. Blister beetle larvae only eat grasshopper eggs, but you can find adult blister beetles munching on flowers like amaranth, dandelions, sunflowers, chrysanthemums, alfalfa and acacia, in addition to their preferred source of grasshoppers. She lays her eggs in soil. 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