It also serves as a prey item for several different Arthropod predators. Glossary. Barney, R., S. Clark, E. Riley. Journal of Chemical Ecology, 25/3: 549-566. Help us improve the site by taking our survey. The Integrated Taxonomic Information System lists two subspecies: 1. From the side, they have a very prominent dome on the elytra behind the scutellum. Like many other members of the subfamily Cassidinae, this species appears to prefer plants of the family Solanaceae. Clavate Tortoise (Plagiometriona clavata) Clavate tortoise beetle is a part of the tortoise and mining beetle subfamily of the leaf beetle family. Although there is no specific synonym listed, Barber (1918) suggested the possibility that Deloyala testudinaria from Central America may intergrade with clavata in Texas, New Mexico and Arizona. Plagiometriona ambigena Faecal shield of the tortoise beetle Plagiometriona aff. Figure 3. Transactions of the Royal Entomological Society of London 103: 327-362. The elytra are clear with a brown design simulating four legs (a teddy bear shape). Look for the Clavate Tortoise Beetle (Plagiometriona clavata) on morning glory, potatoes, tomatoes, ground cherries, jimsonweed and nightshade. This does not appear to be a serious pest species. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. A Manual of Common Beetles of Eastern North America. Michael Leasia (author), University of Michigan Biological Station, Brian Scholtens (author, editor), University of Michigan Biological Station, Angela Miner (editor), Animal Diversity Web Staff. An Illustrated Descriptive Catalogue of the Coleoptera or Beetles Known to Occur in Indiana. Coptocycla clavata (Fabricius). Deloyala clavata (Fabricius). Vencl, F., M. Morton, R. Mumma, J. Schultz. Larvae of the folivorous tortoise beetle, Plagiometriona clavata, carry shields formed from feces and exuviae above their bodies. In South America it includes the scrub ecotone between forest and paramo. Plagiometriona clavata, the clavate tortoise beetle, is native to the Nearctic region. National Science Foundation Leasia, M. and B. Scholtens 2013. Dietary specialization influences the efficacy of larval tortoise beetle shield defenses. 6983. 1961. 2005. In side view, it is dome-shaped with a conical peak near the middle, behind the scutellum. PDF | Plagiometriona clavata Fabricius, 1798 is reported for the first time on Capsicum annuum var. Figure 2. This shield also covers the head. Classification, To cite this page: This defense mechanism uses the allelochemicals in their diet to create a chemical shield, partially warding off predators. your own Pins on Pinterest (Chaboo, 2007; Ciegler, 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), Plagiometriona clavata could possibly be studied and used as a chemical control for insect pests. Image 2187013 is of translucent tortoise beetle (Plagiometriona clavata ) adult(s). Topics The antenna is variable in color, but at least some of the terminal segments are black; the segments are free when at rest, and there is no antennal groove on the underside of the prothorax; the third segment is slightly longer than the second segment. The tarsal claws are appendiculate. Whitchurch-Stouffville, Ontario. 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. Anal fork with feces is held above larva. Lateral view of the larva of a clavate tortoise beetle, Plagiometriona clavata (Fabricius). Anal fork with feces is held above larva. Abstract. (Barney, et al., 2007; Ciegler, 2007; Riley, 1986), These leaf beetles are generally found on agricultural farms or suburban and urban gardens where solanaceous plants are grown. Adults likely communicate and find mates via visual and chemical cues, and perceive the environment with sight and detect chemicals. 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. living in landscapes dominated by human agriculture. (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 several species of nightshade including Solanum dulcamara, S. americanum, S. carolinense, S. lycopersicum, S. pseudogracile, and S. tuberosum. Nature Publishing Co., Indianapolis, Ind. Clavate Tortoise Beetle. This includes Greenland, the Canadian Arctic islands, and all of the North American as far south as the highlands of central Mexico. Line represents 3 mm. The body is green, flattened, and almost entirely fringed with whitish multispiculate projections. Blatchley WS. Credit: Division of Plant Industry [Click thumbnail to enlarge.] Some nomenclatorial notes on Chrysomelidae. living in residential areas on the outskirts of large cities or towns. Plagiometriona clavata testudinaria(Boheman, 1855) (ITIS 2010) Adults mate and females lay eggs on the host plant. 1003 pp. Lateral view of the larva of a clavate tortoise beetle, Plagiometriona clavata (Fabricius). Posterior view of the larva of a clavate tortoise beetle, Plagiometriona clavata (Fabricius), showing last segment bearing the anal fork. Adult clavate tortoise beetle, Plagiometriona clavata (Fabricius). Clavate Tortoise Beetle Plagiometriona clavata (Fabricius, 1798) Synonyms: Cassida clavata, Coptocycla testudinaria, Helocassis clavata. `` frass '' ( On-line ), adults have large elytra and pronotum, a. Diversity of which tortoise beetle plagiometriona clavata largely on the abdominal segment has a special fecal., L. Sekerka, M. and B. Scholtens 2013 biomes can vary widely in amount of moisture available a tortoise. American as far South as the highlands of central Mexico major parts of subtropical and tropical Africa and South it... 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