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Poecilopompilus Interruptus
''Poecilopompilus interruptus'' is a species of New World spider wasps. Description A highly variable spider wasp, which is 13 mm in length. ''P. interruptus'' has long orange antennae, bold rufous-brown and yellow bands on the mesosoma with yellow and brown markings on the thorax. Its legs are brown and yellow and the wasp's wings are brown. The amount of red, brown and yellow markings shows great individual variation. The antennae of males are straight or gently curved while females have antennae that curl at the ends. ''Poecilopompilus'' wasps may be a Müllerian mimics of various wasp species and this species appears to mimic paper wasps of the genus ''Polistes''. To distinguish this species from ''P. algidus'' the observer needs to examine the spines on the front tarsi of females and the inner margin of the eyes, ''P. interruptus'' females have four weak spines on the front tarsi in females and parallel inner eye margins while ''P. algidus'' has three strong spines a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Say
Thomas Say (June 27, 1787 – October 10, 1834) was an American entomologist, conchologist, and herpetologist. His studies of insects and shells, numerous contributions to scientific journals, and scientific expeditions to Florida, Georgia, the Rocky Mountains, Mexico, and elsewhere made him an internationally known naturalist. Say has been called the father of American descriptive entomology and American conchology. He served as librarian for the Academy of Natural Sciences of Philadelphia, curator at the American Philosophical Society (elected in 1817), and professor of natural history at the University of Pennsylvania. Early life and education Born in Philadelphia into a prominent Quaker family, Thomas Say was the great-grandson of John Bartram, and the great-nephew of William Bartram. His father, Dr. Benjamin Say, was brother-in-law to another Bartram son, Moses Bartram. The Say family had a house, "The Cliffs" at Gray's Ferry, adjoining the Bartram family farms in King ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wislizenia Refracta
''Cleomella refracta'', common names jackass clover or spectacle fruit, is a species of flowering plant in the cleome family, Cleomaceae. It is native to northwestern Mexico and the southwestern United States, particularly Chihuahua, Sonora, trans-Pecos Texas, New Mexico, Arizona, Utah, Nevada and California (Riverside, Kern and San Bernardino Counties). The species occurs in sandy flats, desert scrub and disturbed sites such as roadsides. ''Cleomella refracta'' is an annual herb up to tall. Leaves are trifoliate The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular o ..., the leaflets ovate (egg-shaped), up to long. Its flowers are yellow.Shreve, F. & I. L. Wiggins. 1964. Vegetation and Flora of the Sonoran Desert 2 vols. Stanford University Press, Stanford. References refracta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insects Described In 1834
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eggs. Insect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smithsonian Tropical Research Institute
The Smithsonian Tropical Research Institute (STRI, es, Instituto Smithsonian de Investigaciones Tropicales) is located in Panama and is the only bureau of the Smithsonian Institution based outside of the United States. It is dedicated to understanding the past, present, and future of tropical ecosystems and their relevance to human welfare. STRI grew out of a small field station established in 1923 on Barro Colorado Island in the Panama Canal Zone to become one of the world's leading tropical research organizations. STRI's facilities provide for long-term ecological studies in the tropics and are used by some 1,200 visiting scientists from academic and research institutions around the world every year. History Smithsonian scientists first came to Panama during the construction of the Panama Canal from 1904 to 1914. The Secretary of the Smithsonian Institution, Charles Doolittle Walcott, reached an agreement with Federico Boyd to conduct a biological inventory of the new Canal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneidae
Orb-weaver spiders are members of the spider family Araneidae. They are the most common group of builders of spiral wheel-shaped webs often found in gardens, fields, and forests. The English word "orb" can mean "circular", hence the English name of the group. Araneids have eight similar eyes, hairy or spiny legs, and no stridulating organs. The family has a cosmopolitan distribution, including many well-known large or brightly colored garden spiders. With 3,108 species in 186 genera worldwide, the Araneidae comprise the third-largest family of spiders (behind the Salticidae and Linyphiidae). Araneid webs are constructed in a stereotypical fashion, where a framework of nonsticky silk is built up before the spider adds a final spiral of silk covered in sticky droplets. Orb webs are also produced by members of other spider families. The long-jawed orb weavers (Tetragnathidae) were formerly included in the Araneidae; they are closely related, being part of the superfamily Aran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haemolymph
Hemolymph, or haemolymph, is a fluid, analogous to the blood in vertebrates, that circulates in the interior of the arthropod (invertebrate) body, remaining in direct contact with the animal's tissues. It is composed of a fluid plasma in which hemolymph cells called hemocytes are suspended. In addition to hemocytes, the plasma also contains many chemicals. It is the major tissue type of the open circulatory system characteristic of arthropods (e.g. arachnids, crustaceans and insects). In addition, some non-arthropods such as molluscs possess a hemolymphatic circulatory system. Oxygen-transport systems were long thought unnecessary in insects, but ancestral and functional hemocyanin has been found in the hemolymph. Insect "blood" generally does not carry hemoglobin, although hemoglobin may be present in the tracheal system instead and play some role in respiration. Method of transport In the grasshopper, the closed portion of the system consists of tubular hearts and an a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penstemon Rydbergii
''Penstemon rydbergii'', commonly known as Rydberg's penstemon or meadow penstemon, is a perennial plant in the plantain family (Plantaginaceae) that grows in damp, grassy meadows of the Great Basin The Great Basin is the largest area of contiguous endorheic basin, endorheic watersheds, those with no outlets, in North America. It spans nearly all of Nevada, much of Utah, and portions of California, Idaho, Oregon, Wyoming, and Baja California ... and Rocky Mountains of the western United States.Great Basin Wildflowers, Laird R. Blackwell, 2006, Morris Book Publishing LLC., References External linksJepson: ''Penstemon rydbergii'' var. ''oreocharis'' {{Taxonbar, from=Q17739134 rydbergii Flora of the Great Basin Flora of the Northwestern United States Flora of the Southwestern United States Flora of California Flora of New Mexico Flora of the Cascade Range Flora of the Sierra Nevada (United States) Flora without expected TNC conservation status ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acacia Angustissima
''Acaciella angustissima'' (prairie acacia, white ball acacia, ocpatl, or palo de pulque) is most recognized for its drought tolerance and its ability to be used as a green manure and ground covering. It is a perennial, deciduous, and belongs to the family Fabaceae (beans/legumes) and as it grows it starts as a shrub but eventually matures to a small tree. The tree has a high density of leaves along with small clumps of white flowers and creates 4–7 cm long seed pods. ''Acaciella angustissima'' is found in tropical areas around the equator since, its water needs can vary from 750 to 2,500 mm a year. It has an advantage it can withstand a moderate drought, since its leaves are retained even in long dry periods. Aside from being drought tolerant, ''Acaciella angustissima'' also has the benefit of being a green manure, since it has such a high leaf density, but also loses the majority of its leaves each season. So the leaves can be used in composting or can be saved an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ribes Aureum
''Ribes aureum'', known by the common names golden currant, clove currant, pruterberry and buffalo currant, is a species of flowering plant in the genus ''Ribes'' native to North America. Description The plant is a small to medium-sized deciduous shrub, tall. The leaves are green, semi-leathery, with 3 or 5 lobes, and turn red in autumn. The plant blooms in spring with racemes of conspicuous golden yellow flowers, often with a pronounced, spicy fragrance similar to that of cloves or vanilla. Flowers may also be shades of cream to reddish, and are borne in clusters of up to 15. The shrub produces berries about in diameter from an early age. The ripe fruits are amber yellow to black. Those of variety ''villosum'' are black. Taxonomy The species belongs to the subgenus ''Ribes'', which contains other currants such as the blackcurrant (''R. nigrum'') and redcurrant (''R. rubrum''), and is the sole member of the section ''Symphocalyx''. Varieties * ''Ribes aureum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eriogonum Thomasii
''Eriogonum thomasii'' is a species of wild buckwheat known by the common name Thomas' buckwheat. It is native to the desert southwest of the United States and northern Mexico where it is common in many areas, sometimes becoming a weed. Description It is a thin annual herb growing up to 30 centimeters tall, with a basal rosette of rounded leaves around the stem. The inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ... is a wide open array of stem branches bearing clusters of tiny yellowish to pinkish flowers. References External linksJepson Manual Treatment [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eriogonum Fasciculatum
''Eriogonum fasciculatum'' is a species of wild buckwheat known by the common names California buckwheat and flat-topped buckwheat. Characterized by small, white and pink flower clusters that give off a cottony effect, this species grows variably from a patchy mat to a wide shrub, with the flowers turning a rusty color after blooming. This plant is of great benefit across its various habitats, providing an important food resource for a diversity of insect and mammal species. It also provides numerous ecosystem services for humans, including erosion control, post-fire mitigation, increases in crop yields when planted in hedgerows, and high habitat restoration value.Montalvo, A. M., E. C. Riordan, and J. L. Beyers. 2018. ''Plant Profile for Eriogonum fasciculatum, Updated 2018.'' Native Plant Recommendations for Southern California Ecoregions. Riverside-Corona Resource Conservation District and U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psilostrophe Cooperi
''Psilostrophe cooperi'' is a flowering plant in the daisy family known by the common names Cooper's paper daisy and whitestem paperflower. It is native to the Mojave and Sonoran Deserts of California, the Southwestern United States, and northwestern Mexico. Description ''P. cooperi'' is perennial shrub with stems rising from a woody base to form that a nearly spherical form. It is a low, spreading bush with pale green, hairy foliage. It is drought deciduous, dropping its leaves in times of drought. The linear leaves are alternate. The daisylike flower heads A pseudanthium (Greek for "false flower"; ) is an inflorescence that resembles a flower. The word is sometimes used for other structures that are neither a true flower nor a true inflorescence. Examples of pseudanthia include flower heads, compos ... have 3 to 8 deeply toothed golden-yellow ray florets. The flower heads are often bunched together at the tops of the stems in a rounded spray. The ray flowers persist fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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