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Tomatoes 2008
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Abdomen. Posterior body part of insects; called opisthosoma in Arachnida. Antenna (pl. Antennae). Paired segmented sensory appendages attached to heads of insects, crustaceans, centipedes and millipedes; absent in arachnids. Anterior. Toward the front or head end. Aquatic. Living in or associated with water. Basal. The base or part of an appendage nearest the body. Beadlike Antenna. Antenna composed of nearly spherical segments. Characteristic of Isoptera, or termites and certain other insects. Bulbous. Protruding; rounded or swollen. Caterpillar. The larva or immature stage of a moth or butterfly. Cephalothorax. Combined head and thorax in arachnids. Also called the prosoma. Cercus (pl. Cerci). Paired appendage at posterior end of abdomen in some insects. Chelicera (pl. Chelicerae). Small, paired pincer‑like mouth parts of spiders, ticks, mites, scorpions and their relatives. Chewing Mouthparts. Mouthparts adapted for grasping and breaking up food by a back and forth motion of the laws. In some Hymenoptera these are modified for lapping nectar. Complete Metamorphosis. Development of insects involving four major life stages: egg, larva, pupa and adult. The pupa is inactive and does not feed. Compound Eyes. Eyes made up of numerous individual elements, represented externally by facets. Absent in arachnids. Convex. Curved or rounded like the exterior of a sphere. Cornicle. One of a pair of dorsal tubular structures on the posterior abdomen of aphids. I Coxa (pl. Coxae). The basal segment of the leg of an arthropod. Discoidal Cell. An outstanding cell, usually in the middle of an insect's wing. Useful in identification of some flies, bees or wasps. Dorsal. Of or belonging to the upper surface, Dorsoventrally Flattened. Compressed between the upper and lower surfaces. Ectoparasite. Parasite that lives on the outside of its host. Elytron (pl. Elytra). A thickened, leathery or horny forewing, especially in the Coleoptera. Endoparasite. Parasite that lives inside its host. Femur (pl. Femora). The third leg segment in insects, between the trochanter and the tibia. In arachnids the femur is between the trochanter and patella. Filamentous. Thread‑like. Forceps. Hook‑like or pincer‑like processes on the end of the abdomen. Characteristic of earwigs. Haltere (pl. Halteres). Small knob‑like structure which represents the reduced second pair of wings in Diptera. Head. First division in the body of an insect.. United with thorax in arachnids (see Cephalothorax, Prosoma). Hemelytron (p]. Hemelytra) The half wing (forewing) of the Hemiptera. Incomplete Metamorphosis. Type of metamorphosis involving egg, several nymph stages and an adult. The pupa stage is either absent or, when present, is active and feeds. Lamellate. Composed of sheets or leaves. See illustration of antenna types under description of Coleoptera. Larva (pl. Larvae), An immature of an insect with complete metamorphosis. Lateral. Toward the side. Mandibles. jaw‑like structures of insects and related arthropods, except arachnids. The latter have jointed (two segmented) structures called Chelicerae. Mesopleura. The side (lateral surface) of the mesothorax, Mesosternum. The underside (or breast) of the mesothorax Mesothorax. The second of the three thoracic segments; preceded by the prothorax and followed by the metathorax. Metamorphosis. The series of changes through which an insect or other arthropod follows in its growth from egg through the immature stages to adulthood. See complete metamorphosis and incomplete metamorphosis. Midline. An imaginary line drawn from the head to the tail of an organism. Mite. Member of a large and diverse group of usually small to microscopic organisms belonging to the Class Arachnida and the Order Acarina. Most have 8 legs, 2 body regions, an unsegmented abdomen and no antennae. Metamorphosis is incomplete. Naiad. Aquatic immature of insects with simple metamorphosis (e.g. dragonflies). Nymph. Immature stage of insects with simple metamorphosis Also applied to specific stages in the development of mites and ticks. Ocellus (pl. Ocelli). Simple eye of insects or other arthropods, Omnivorous. Feeding on a variety of plant and animal matter, Opisthosoma, Abdomen of arachnids. Ovipositor. The egg‑laying apparatus of female insects Palp (pl. Palpi). Segmented appendage near the mouth Parasite. An animal that lives on (Ectoparasite) or in (Endoparasite) another animal (host) and feeds on its tissue, especially blood. A true parasite does not directly kill its host (e.g. flea or mosquito). See Parasitoid. Parasitoid. An animal that lives on or in another animal and eventually kills its host. Certain Hymenoptera and some Diptera fit this category, because they attack and use other insects as food and hosts for larvae. Pectinate. Comb‑like. See illustrations of antennae under the discussion on Coleoptera . Pedipalp (pl. Pedipalpi). The second pair (after Cheticerae) of appendages in the Arachnida. Leg‑like in spiders, but modified in other arachnid orders as grasping organs or used like antennae. Phytophagous. Feeding on plant matter Picture‑Wing. Wings of some flies which have spots or blotches Pitfall Trap. A collecting device for insects that run over t he ground. Made by digging a small, steep‑sided hole at least 6‑8 inches deep and lining it snugly with an open can or jar. Bait and preservative fluids in the can or jar are optional, depending upon the types of insects to be trapped. Postscutellum. In Diptera this is the projection under and behind the scutellum on the posterior dorsal thorax. Especially important for the identification of Tachinid flies. Predaceous. Killing and feeding on other animals. Proboscis. A mouth structure that is extendible. A snout Pronotum. The dorsal or top surface of the first thoracic segment, Prosoma. The united head and thorax of arachnids, See Cephalothorax. Prothorax. Anterior of the three parts of the thorax in insects. Often expanded and may cover much of dorsal surface. Collarlike in Sphecid wasps. Raptorial. Suitable for grasping prey. Recurrent Vein. One of two transverse veins in the forewings of some Hymenoptera. Reproductives. The reproducing form of the social insects (e.g. Termites, ants, and some and bees) as opposed to sterile workers. Scutellum. Often triangular posterior plate of the. thorax. Especially important for identification of Hemiptera. Serrate. With wavy teeth, as the edge of a knife. Refers to the form of an antenna. See the illustrations of antennae under the discussion on Coleoptera. Simple Metamorphosis. Development in which the immature stages look much like the adult, but lack wings and reproductive structures. In some cases the immature stages live in a totally different habitat and feed on different things than the adult (e.g. dragonflies.) or they may feed on the same foods and live in the same habitat as the adult (e.g. grasshoppers). Soldier. A highly modified worker of. the ants or termites that defends the nest. Spinnerets. Silk spinning organs on posterior Opisthosoma of spiders. Spurious Vein. Vein‑like thickening of the wing between two true veins. Used to identify Syrphid flies. Sterile. Not capable of reproduction, as in the female workers in ant colonies. .Submarginal Area. The part of the surface just within the margin Sucking Mouthparts. Modified mouthparts used to suck up liquid food. These include the straw‑like mouthparts of the Lepidoptera, the piercing‑sucking mouthparts of Hemiptera, Homoptera, Siphonaptera and most Diptera, and the sponging mouthparts of muscoid flies. Symbiotic. Separate species living together in a more or less intimate association. Often benefits both, as in termites and their protozoans. Tarsal Formula. Group of numbers (e.g. 5‑5‑4 or 5‑5‑5) showing the number of tarsal segments in each of the legs, starting with the forelegs. Tarsus (pl. Tarsi). Leg segment beyond the tibia, consisting of one or more subdivisions (segments) and usually a pair of claws. Thorax. The second of the three main subdivisions of the insect body. Appendages Include walking legs and usually wings in adults. Tibia (pl. Tibiae). Fourth segment of insect leg, after femur. Fifth segment in arachnids after patella. Trochanter. Second segment of the insect leg, between the coxa and the femur. Worker. A sterile adult insect that serves to help rear the young produced by a queen in social insects.
02/01/2009 |