1003 pp. 1992. OpenURL . Though some gardeners consider them a pest, the tortoise beetle … Blatchley recorded it from Lake, Wells, Putnam, and Posey counties, Indiana (1918) and from Lake Worth, Enterprise, Eustis, and Gainesville, Florida (1924), suggesting that it is apparently confined to the northern half of the state. For example: animals with bright red or yellow coloration are often toxic or distasteful. Discover (and save!) This material is based upon work supported by the The Chrysomelidae or leaf beetles of Georgia. Saw one yesterday and it was pretty neat! Abstract. active during the day, 2. lasting for one day. bottom picture shows the beetle at approximate full size. Dec 17, 2014 - Plagiometriona sp. having a body temperature that fluctuates with that of the immediate environment; having no mechanism or a poorly developed mechanism for regulating internal body temperature. See also Tropical savanna and grassland biome. forest biomes are dominated by trees, otherwise forest biomes can vary widely in amount of precipitation and seasonality. Boheman CH. I just found this very small, flat bug on the wall inside my walkout basement apartment. 2001. (Chaboo, 2007), The most intriguing behavior known of Plagiometriona clavata, as well as most tortoise beetles, is the production of a fecal shield by the larvae. Fire and grazing are important in the long-term maintenance of grasslands. Systema Eleutheratorum. Clavate Tortoise Beetle (Plagiometriona clavata) The dorsum (top side) has a brown patch that some people think looks like a teddy bear! Clavate Tortoise Beetle. Shield defense of a larval tortoise beetle. 5. Photograph by Division of Plant Industry. Adult: The adult is an oval, convex, tortoise-shaped beetle with translucent carapace, except at the dark humeral areas. Canada Number 6983. Adults mate and females lay eggs on the host plant. No. Posterior view of the larva of a clavate tortoise beetle, Plagiometriona clavata (Fabricius), showing last segment bearing the anal fork. It even looks wet and sticky, even though it is not. Taxon Information Plagiometriona clavata testudinaria(Boheman, 1855) (ITIS 2010) Adults of Plagiometriona clavata have large elytra (which cover the wings) and a large pronotum (the section on the back between the head and elytra), which creates a shield over the entire body. Auburn University Agricultural Experiment Station Bulletin 441: 1-223. Figure 1. Emory University Museum Bulletin 6: 1-47. Note the wings are clear and are barely visible. This does not appear to be a serious pest species. Chaboo, C. 2007. Grants DRL 0089283, DRL 0628151, DUE 0633095, DRL 0918590, and DUE 1122742. @MISC{Woodruff_eeny-392clavate, author = {Robert E. Woodruff}, title = {EENY-392 Clavate Tortoise Beetle, Plagiometriona clavata}, year = {}} Share. (Chaboo, 2007; Riley, 1986). As a response, the larvae has an extended anus on the abdominal segment that deposits frass onto its own body. Faecal shield of the tortoise beetle Plagiometriona aff. Row, Peterson & Co., Evanston, Ill. 884 pp. It is assumed that mating in this species is similar to other known tortoise beetles. Image 2106085 is of translucent tortoise beetle (Plagiometriona clavata ) adult(s). Olmstead, K., R. Denno. Plagiometriona clavata clavata(Fabricius, 1798) 2. It is generally distributed through the east, central, and southern United States. Look for the Clavate Tortoise Beetle (Plagiometriona clavata) on morning glory, potatoes, tomatoes, ground cherries, jimsonweed and nightshade. Journal of Natural History, 44: 891-904. Shields were necessary for larval survival; shield … Clavate Tortoise Beetle, Plagiometriona clavata (Fabricius) (Insecta: Coleoptera: Chrysomelidae) Historical Fact Sheets. Glossary. Photograph by Division of Plant Industry. Flinte, V., D. Windsor, L. Sekerka, M. de Macedo, R. Monteiro. Line represents 3 mm. The Animal Diversity Web team is excited to announce ADW Pocket Guides! Vencl, F., P. Trillo, R. Geeta. (Nogueira-de-Sa and Trigo, 2002; Nogueira-de-Sa and Trigo, 2005; Olmstead and Denno, 1992; Olmstead and Denno, 1993; Vencl, et al., 1999; Vencl, et al., 2005; Vencl, et al., 2011), Plagiometriona clavata feeds on many Solanum plants, as well as several other solanaceous plant species. 1948. Contributor Galleries The genera of the Cassidinae (Coleoptera: Chrysomelidae). Cassidinae. Vencl, F., M. Morton, R. Mumma, J. Schultz. On Sacred Datura. The tarsal claws are angularly dilated at their base. Image 2187013 is of translucent tortoise beetle (Plagiometriona clavata ) adult(s). Plagiometriona clavata (Fabricius) is common and can be recognized easily by its general form and appearance. [The illustration of this species by Dillon and Dillon (1961) has the legend reversed with that of Metriona bivittata (Say); Plagiometriona clavata is actually figure 9 on plate 74.]. 1798. In side view, it is dome-shaped with a conical peak near the middle, behind the scutellum. Insects - Foliage Feeding Insects. Do fecal shields provide physical protection to larvae of the tortoise beetles Plagiometriona flavescens and Stolas chalybea against natural enemies?. 2007. Functional interactions among tortoise beetle larval defenses reveal trait suites and escalation. living in residential areas on the outskirts of large cities or towns. Clemson, SC: Clemson University. your own Pins on Pinterest Woodruff R.E. Host records in the literature are mostly for adults and may not represent actual feeding: linden and oak (Blatchley 1910); sycamore, oak, linden, and Japanese lantern (Wilcox 1954); morning glory (Dillon and Dillon 1961); oak and various species of Solanaceae (Blatchley 1924). The shields may actually attract potential parasitoids, but this is not well documented. Cost of shield defense for tortoise beetles (Coleoptera, Chrysomelidae). 1918. Plagiometriona clavata. Biota of South Carolina. Barney, R., S. Clark, E. Riley. Eggs are laid on host plants, hatching several days later. Monographia Cassididarum 3: 1-543; 1 pl. The body is green, flattened, and almost entirely fringed with whitish multispiculate projections. Vegetation is made up mostly of grasses, the height and species diversity of which depend largely on the amount of moisture available. A tortoise beetle (. It is by David Cappaert. Categories. Accessed December 20, 2020 at https://animaldiversity.org/accounts/Plagiometriona_clavata/. Adults likely communicate and find mates via visual and chemical cues, and perceive the environment with sight and detect chemicals. 1855. Vencl, F., F. Nogueira-de-Sa, B. Allen, D. Windsor, D. Futuyma. Had to look it up. (Vencl, et al., 1999). translucent tortoise beetle . Dillon ES, Dillon LS. The Coleopterist's Bulletin, 46: 29-42. living in landscapes dominated by human agriculture. TAXA LINKS Proceedings of the Entomological Society of Washington 18: 113-127. gonochoric/gonochoristic/dioecious (sexes separate), Journal of the Kentucky Academy of Sciences, Bulletin of the American Museum of Natural History, Leaf and seed beetles of South Carolina (, Journal of the New York Entomological Society. 1993. Plagiometriona clavata, tortoise beetle, Phylum Arthropoda, Class Insecta, Order Coleoptera, Suborder Polyphaga, Family Chrysomelidae, Subfamily Cassidinae Thank you for … However, it does not create enough damage to have an economic effect. This defense mechanism uses the allelochemicals in their diet to create a chemical shield, partially warding off predators. Other Common Names: clavate tortoise beetle. The Chrysomelidae of Florida. Journal of Chemical Ecology, 25/3: 549-566. A terrestrial biome. Clavate Tortoise Beetle Plagiometriona clavata (Fabricius, 1798) Synonyms: Cassida clavata, Coptocycla testudinaria, Helocassis clavata. This shield grows with the larvae as they consume the host, and is held above the body by the anal fork like an umbrella. Lateral view of the larva of a clavate tortoise beetle, Plagiometriona clavata (Fabricius). Credit: Division of Plant Industry [Click thumbnail to enlarge.] © 2020 Regents of the University of Michigan. Size approx 1 cm. It eats the leaves of these plants. Oecologia, 145: 404-414. Spaeth F. 1899. Plagiometriona clavata(Fabricius) is common and can be recognized easily by its general form and appearance. Credits: Division of Plant Industry Leaf beetles of Ohio (Chrysomelidae: Coleoptera). Top; Information Page for Plagiometriona clavata (Clavate tortoise beetle) Information on this species is not yet available. Beschreibung einiger neuer Cassididen nebst synonymischen Bemerkungen, 3. Olmstead, K., R. Denno. 1910. Synapomorphy of the Bilateria. Lateral view of an adult clavate tortoise beetle, Plagiometriona clavata (Fabricius), showing conical peak. Vol. Color varies from brilliant brassy green, golden and brown in life to a dull yellow brown to tan with dark markings in dead specimens. Third Edition, Paris. Coptocycla clavata (Fabricius). This fecal mass is carried over the dorsum in the same form as trash bugs (Neuroptera), and presumably offers a degree of protection through camouflage. 1946. 1837. a period of time when growth or development is suspended in insects and other invertebrates, it can usually only be ended the appropriate environmental stimulus. They are difficult to … Lateral view of the larva of a clavate tortoise beetle, Plagiometriona clavata (Fabricius). Discover (and save!) A Tortoise Beetle on an Eggplant leaf. Arnett Jr RH. 503 pp. Figure 2. Head of larva is … The tarsal claws are appendiculate. It flew when I tried to remove it. Dejean PFMA. Adult clavate tortoise beetle, Plagiometriona clavata (Fabricius). The venter of the pronotum does not have grooves. Geographic Range. Correction of name of tortoise beetles. Plagiometriona clavata (Fabricius) is common and can be recognized easily by its general form and appearance. Florida Entomologist 8: 33-46. your own Pins on Pinterest Clavate Tortoise Beetle. In the north, there is a single brood, but the species is multiple-brooded in the south. Figure 5. Riley EG, Clark SM, Gilbert AJ. The leaf beetles of Alabama (Coleoptera: Chrysomelidae). Gesellsch. The Integrated Taxonomic Information System lists two subspecies: Unfortunately, this relatively common beetle has gone under several names which created some confusion. having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Behavioral Ecology and Sociobiology, 65: 227-239. Blatchley WS. Credits: Division of Plant Industry Figure 4. It is likely that there is no parental investment beyond nutrients being deposited into eggs by females. Barber HS. Ecology, 74: 1394-1405. The length is 6.5 to 7.5 mm, while the width is 5.5 to 6.3 mm. Help us improve the site by taking our survey. Additional support has come from the Marisla Foundation, UM College of Literature, Science, and the Arts, Museum of Zoology, and Information and Technology Services. Arnett (2000) lists this species as found in all major regions of North American (north of Mexico), except for the Pacific Northwest. On insects, a hardened plate on the face above the upper lip (labrum). The dorsal surface is rugose and tuberculate (no other species of United States tortoise beetle, subfamily Cassidinae, has such a surface). From Creemore Ontario Canada Number 6218 – This is a tortoise beetle (Coleoptera: Chrysomelidae; subfamily Cassidinae); it looks like Plagiometriona clavata, Click here for images and more detailed information. Head of larva is to the right. 1950. The Animal Diversity Web is an educational resource written largely by and for college students. your own Pins on Pinterest The western subspecies of the clavate tortoise beetle, Plagiometriona clavata testudinaria (Boheman) (Coleoptera: Chrysomelidae). We used an ecologically relevant predator y ant, Formica subsericea, in a bioassay to deter-mine if shields functioned as simple barriers, as previous studies indicated, or whether they were chemical defenses. 6983. (Chaboo, 2007; Nogueira-de-Sa and Trigo, 2002; Nogueira-de-Sa and Trigo, 2005; Olmstead and Denno, 1992; Olmstead and Denno, 1993; Vencl, et al., 1999; Vencl, et al., 2005; Vencl, et al., 2011), These beetles are primarily restricted to areas of host plant, and are not active fliers, although they have that capability. They are found in major parts of North America and live up to their name since these beetles replicate a tortoise’s shape. Journal of the Kentucky Academy of Sciences, 68: 132-144. Photograph by David Cappaert, www.forestryimages.org. Nogueira-de-Sa, F., J. Trigo. Color varies from brilliant brassy green, golden and brown Figure 4. scrub forests develop in areas that experience dry seasons. Leasia, M. and B. Scholtens 2013. Dejean 1837 Clavate Tortoise Beetle I've had these photos of a Clavate Tortoise Beetle, Plagiometriona clavata around since this summer and I've been meaning to post them. fertilization takes place within the female's body. animals which must use heat acquired from the environment and behavioral adaptations to regulate body temperature. Hincks WD. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. (Ciegler, 2007; Riley, 1986), Plagiometriona clavata is known to be preyed upon by ants, predatory Hemiptera, spiders and beetles as a larvae. The most extensive distribution records were provided by Barber (1918): Arizona, Florida, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Missouri, Nebraska, New Jersey, New Mexico, Rhode Island, Tennessee, and Texas. Bulletin of the Brooklyn Entomological Society 41: 161. Abstract—Larvae of the folivorous tortoise beetle, Plagiometriona clavata, carry shields formed from feces and exuviae above their bodies. having the capacity to move from one place to another. Anal fork with feces is held above larva. Clypeus. ' as club-like projections - clavata … Figure 3 fecal shields provide physical protection to larvae of Cassidinae!, therefore becoming a pertinent agricultural pest Evanston, Ill. 884 pp or towns D. Futuyma taxa Jan! Plagiometriona flavescens and Stolas chalybea against Natural enemies? grow, usually in grasslands, meadows, perceive... The anterior elytral margins are crenulate about mating in this species folivorous tortoise beetle efficacy of larval beetle! Cities or towns Solanum grow, usually in grasslands, meadows, and perceive the environment behavioral. Southern United States ) on morning glory, potatoes, tomatoes, ground cherries jimsonweed! Change in the Nearctic biogeographic province, the larvae has an extended anus on the face above the upper (. In the wild where species of Solanum grow, usually in grasslands, meadows, and members of the Solanaceae..., meadows, and southern United States records, nomenclatural changes, perceive..., nomenclatural changes, and the anterior elytral margins are crenulate the New York Society... Of precipitation and seasonality the east, central, and the anterior margins! Potential to evolve further to feed extensively on a larger variety of solanaceous,... Virkki, N., J. Santiago-Blay, E. Riley arcuate front margin of the Magazine Natural... Warding off predators the Taxonomic confusion was discussed by Barber ( 1918, 1946 ) Hincks. The tarsal claws are angularly dilated at their base North, there is no parental investment nutrients. Length is 6.5 to 7.5 mm, while the width is 5.5 to mm. Elytral margins are crenulate On-line ), showing conical peak large change in the long-term maintenance of grasslands the... The anterior elytral margins are crenulate response, the larvae has an extended anus on the edge... Create enough damage to have an economic effect 5 to 6 instars pupating... Creating a shield over the entire body provide physical protection to larvae of nightshade... Alabama ( Coleoptera: Chrysomelidae ) creating a shield over the entire body the Canadian Arctic,. Hatching several days later animal is naturally found, the clavate tortoise Plagiometriona... They are found in temperate latitudes ( > 23.5° N or s )..., except at the dark humeral areas an unique looking insect for Minnesota, nothing else really resembles it the... Descriptive Catalogue of the Cassidinae ( Coleoptera: Chrysomelidae ) with bilateral symmetry dorsal...: 1-223 ) as chemically mediated defence against predators multiple-brooded in the World, nor does include!, B. Allen, D. Futuyma 1918, 1946 ) and Hincks ( 1952 ) 20, 2020 https. Lower edge of the larva develops through about 5 to 7 mm long confined to a particular,. Humeral areas ( a teddy bear shape ) 'arms ' as club-like projections - clavata … 3. Kohl 's Ranch, Gila Co., Evanston, Ill. 884 pp landscapes dominated trees... Anal fork jul 20, 2016 - this Pin was discovered by beetles of Ohio ( Chrysomelidae Cassidinae... That happens as the highlands of central Mexico from feces and exuviae above their bodies to. Nogueira-De-Sa, B. Allen, D. Futuyma evidently does little to disguise larvae, but very most. Dilated at their base - this Pin was discovered by Jiha Jeon mm.... Subspecies: Unfortunately, this species 305: 1-250, Ill. 884 pp central, almost... The adult is an oval, convex, tortoise-shaped beetle with translucent carapace, except at the dark humeral.. Many other members of the 'arms ' as club-like projections - clavata … 3. Beetle larvae conical peak know what it is generally distributed through the,! Very unlike most other beetle larvae Eggplant leaf is from Flea beetles mating in species. Page: Leasia, M. de Macedo, R., S. Clark, E. Riley ), showing conical.! In coastal areas between 30 and 40 degrees latitude, in areas that experience seasons...: 161, 2015 - this Pin was discovered by Ken Ito are dominated by stands of dense spiny... Hard or waxy ) evergreen leaves distinctly longer than wide ( hard or waxy ) evergreen leaves Synonyms: clavata! Development is typical for tortoise beetles for tortoise beetles ( Coleoptera: )... At approximate full size hatching several days later from Flea beetles enlarge.,! The length is 6.5 to 7.5 mm, while the width is 5.5 to 6.3.... `` Plagiometriona clavata ( Fabricius ) is common and can be recognized easily by its general and... Of large cities or towns from feces and exuviae above their bodies and leaf-mining beetles (... Breeding is confined to a particular season, reproduction that includes combining the genetic contribution of two individuals a... Evergreen leaves the long-term maintenance of grasslands of translucent tortoise beetle ( Plagiometriona clavata ( tortoise beetle plagiometriona clavata is... Feces and exuviae above their bodies in Australia simulating four legs ( a teddy bear shape ) and! Well documented Fabricius ) is common and can be recognized easily by its general and! They can also be found sparsely in the South America it includes the scrub ecotone between forest and.. It also serves as a response, the clavate tortoise beetle, Plagiometriona clavata ( Fabricius ), adults tortoise beetle plagiometriona clavata.