We're guessing thanks to the voracious appetites of it and numerous SMLB instars our Swamp Milkweed blossoms will be fewer again this year at Hilton Pond Center . They also feed on common milkweed, Asclepias syriaca, and whorled, or horsetail milkweed, Asclepias verticillata, and … The male who stays with her longest has the best chance of having his sperm outnumber/overwhelm the opposition’s from another mating. Milkweed plants have flowers that attract butterflies, bees, and other pollinators. The last instar burrows in the ground to pupate. The earlier a male emerges and the more mobile he is, the better mating success he enjoys. Dear Fran, This is the larva of a Swamp Milkweed Leaf Beetle, Labidomera clivicollis, and we identified it on BugGuide based on this image. Both feed on the seeds of the Milkweed plants. Naturally Curious is supported by donations. Cobalt milkweed beetle, (Chrysochus cobaltinus), member of the insect subfamily Eumolpinae of the leaf beetle family Chrysomelidae (order Coleoptera). (Look it up). The second beetle is the swamp milkweed leaf beetle, Labidomera clivicollis, a leaf-feeding beetle (family Chrysomelidae) found in eastern North America. Dear Lox, This sure looks like a Swamp Milkweed Beetle, Labidomera clivicollis. If your beetle infestation is significant, this can cause serious damage to the plant and may render it uninhabitable for the insects you’re trying to attract. As an adult, Labidomera clivicollis is 12 to 13 mm in length. Part of the orange and black milkweed mimicry complex, which includes Monarch Butterfly, Red Milkweed Beetle, milkweed bugs, and an assassin bug. Negative. The adult Swamp Milkweed Leaf Beetle stayed within one ten-stalk milkweed colony for at least the last three days of June, wandering from--and dining upon--one flower head after another. As their name implies, SWLBs eat milkweed (they may prefer Swamp milkweed, but they’re found on other milkweeds as well). Multiple eggs are laid under milkweed leaves; multiple larvae (grubs, to beetle fanciers) hatch out (more about that later) and feed together on milkweed leaves for a while before going their separate ways. In the lab, increasing day lengths induce breeding, shortening day lengths induces diapause. It occurs in the Western United States and British Columbia. It is a close relative of, and a bit shorter than, the dogbane beetle, and it is We all know that monarch larvae eat milkweed plants, but what about the other insects that share a … SMLBs overwinter as adults, often nestled deep in the dead basal rosette of a nearby mullein plant. When the larvae have satiated themselves, they drop off the milkweed and pupate on the ground (“bailing” is also a common defense strategy used by many beetles). Except that a male with a hefty mite load is more likely to try to interrupt a mating pair. The voyeuristic DLLs may have been attracted by courtship pheromones. As for the insect in the photo, that’s the “milkweed bug,” also known as Oncopeltus fasciatus. It turns out that the SMLB has caught the attention of scientists who have made a variety of observations/carried out a number of studies. What have they discovered about this flashy creature? Beetles first appeared in mid-summer and removed large slices of the leaves of my milkweed. BugFan Mike, who knows whereof he speaks, sent the following comments about last week’s Daddy Longlegs revision: The lip-locked DLLs are probably mating. Its rubbery sap contains cardiac glycosides that, at the very least, make its imbibers throw up—unless they have, like the other milkweed grazers and a variety of herbivores that successfully feed on toxic plants, developed an adaptation that allows them to deal with the chemicals. Phenology and dormancy in the milkweed leaf beetle, Labidomera clivicollis (Kirby). The swamp milkweed leaf beetle has the typical beetle life cycle of egg, larva, pupa, and adult. Milkweed Bug Control. One researcher suggested that SMLBs picked Swamp Milkweed because it often grows surrounded by water, which discourages predators from the ground—a beetle with a moat. The not-so-camouflaged, brilliant-and-chunky Swamp Milkweed Leaf Beetle (Labidomera clivicollis) is one of the BugLady’s favorite beetles. In Central Texas, this beetle is active in the spring and fall due the the host plant growth as determined by the bimodal pattern of annual rainfall in the region . ), but her earlier offspring may feast on Mom’s later broods (siblicide). And, as seasoned BugFans recall, milkweed is poisonous. Interestingly, about 15% of SMLB eggs are infertile, and these are commonly cannibalized (trophic egg-laying), which suggests that Mom puts out these infertile eggs to protect the fertile ones (but the BugLady’s not sure you can call it cannibalism if no one was home in the first place). Milkweed Leaf Beetle larvae and adults do not absorb the cardiac glycosides in milkweed like a Monarch, so they have no toxic compounds in them and will not poison a predator. Milkweed beetles are voracious eaters and both the adults and larvae will chew their way through leaves, flowers, and buds. Species A-Z Milkweed leaf beetles are distinctively marked, large orange and black, and are commonly called "swamp" milkweed beetles, after their preference for the swamp milkweed, Asclepias incarnata. It feeds on the seeds, leaves and stems of milkweed (Asclepias).It is found in small groups on milkweed often on the stems, leaves and on the seed pods. ... 4th instar larvae will chew out a circular area in milkweed leaves, this helps reduce the amount of sticky sap that flows as the larva feeds: ... Milkweed Beetle - Feeding by this red and black beetle is characterized by a notching of the tips of the milkweed leaves. The Milkweed Beetle is given this name because they are generally host specific to the milkweed plant (Asclepias), meaning that they live on and eat from it. Despite their noxiousness, SMLB larvae are picked off of milkweed leaves by damsel bugs, stink bugs, and hover fly larvae (not, apparently, impressed by orange and black). The milkweed leaf beetle: orange and black. Familiar family members are the Colorado Potato, the Cucumber, the Asparagus … The milkweed beetle is a beautiful dark cobalt blue in colour. Wisconsin has about a dozen species of Harvestmen. How do they survive the “not-so-camouflaged” part? Even though they can consume milkweed sap without harm, SMLBs, like Dogbane Leaf Beetles of previous BOTW fame, have devised a way not to consume quite so much of it. Liriomyza asclepiadis is the specific species of leaf miner that feeds on … Unless you’re a milkweed plant farmer, milkweed bugs in the garden don’t require any type of control. [1], There are a number of host plants associated with L. clivicollis: milkweeds, especially swamp milkweed (Asclepias incarnata) and common milkweed (A. syriaca); swallow-wort (Cynanchum); twinevine (Funastrum). Before noshing on a leaf, the beetles (both adult and larva) sever some of the leaf veins “upstream” of their meal site; this serves to divert some of the latex. It overwinters in the soil in the larval stage feeding within the milkweed root. Too bad, they are pretty bugs but not prettier than monarchs! 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