(n. pl.) An extensive order of insects having only two functional wings and two balancers, as the house fly, mosquito, etc. They have a suctorial proboscis, often including two pairs of sharp organs (mandibles and maxillae) with which they pierce the skin of animals. They undergo a complete metamorphosis, their larvae (called maggots) being usually without feet.
Example Sentences:
(1) The complete amino acid sequence of 147 residues was determined automatically for a major dimeric component (CTT VI) of the insect larva Chironomus thummi thummi (Diptera).
(2) Sequence divergence in the 16S rRNA obtained from alignment with published insect sequences is consistent with phylogenetic hypotheses, in that Diptera and Lepidoptera are more closely related to each other (24% sequence divergence) than either is to Hymenoptera (31%).
(3) This should serve as background for further selective, microbiological and medical research on the role of Diptera as transmitters of disease.
(4) In the laboratory, the insects Megaselia scalaris (Diptera) and Tineola sp.
(5) The anlagen of imaginal histoblasts in the abdominal segments of Calliphora (higher Diptera) present an interesting problem, which bears on recent concepts employed in the consideration of spatial patterning in insects.
(6) We infer from our studies that rDNA intervening sequences are prevalent among higher diptera; that in the course of the evolution of these organisms, elements of the intervening sequences have been moderately to highly conserved; and that this conservation extends in at least two distantly related species of Drosophila to similar sequences found elsewhere in the genomes.
(7) The fate of Bacillus sphaericus strain SSII-1 cells ingested by Culex pipiens quinquefasciatus (= C. pipiens fatigans, C. fatigans, C. quinquefasciatus of authors; Diptera: Culicidae) larvae and the cytological events preceding death of the host were observed using electron microscopy.
(8) List of the 187 species of Diptera of 27 families discovered on cat faeces.
(9) Mutagenesis has been used to investigate the toxicity and specificity of a larvicidal protein from Bacillus thuringiensis aizawai IC1 that is toxic to both lepidoptera and diptera and differs by only three residues from a monospecific lepidopteran toxin from B. thuringiensis berliner.
(10) Three hypotheses are proposed on the relationship between the evolution of the 5.8S rRNA and the phylogeny of Diptera.
(11) The protein has pronounced similarity to cuticular proteins from larvae of diptera and lepidoptera, but only slight resemblance to the previously sequenced locust exocuticular proteins.
(12) The aquatic larvae of the genus Chironomus (Diptera, Insecta) contain at least 12 different hemoglobin (Hb) variants in their hemolymph.
(13) A survey of the sandflies (Diptera: Psychodidae) of Jordan increased the number of species known from the country from three to thirteen.
(14) The specimens Diptera: Musca dornestica and Ludlia sp.
(15) Experimental simultaneous infections of Anopheles stephensi (Diptera: Culicidae) with Nosema algerae (Microsporida: Nosematidae) and Plasmodium yoelii nigeriensis under standardized laboratory conditions showed partial suppression of the malaria parasite.
(16) This homology extends to putative rDNA intervening sequences in diverse higher diptera (other Drosophila species, the house fly and the flesh fly), but hybridization of cloned D. melanogaster and D. virilis rDNA interruption segments to DNA of several lower diptera has been negative.
(17) The remaining species of Diptera have only an insignificant medical importance, because of the random occurrence in flats or of their small size.
(18) 12262 haematophagous diptera (11965 Culicidae belonging to 40 species) were caught .
(19) Employment of flow cytometry in diptera genetics might be a new tool for cytological and cytogenetic investigations as shown with the classical genetic objects Chironomus and Drosophila.
(20) The ultrastructure of Malpighian tubes of 5 species of bloodsucking Diptera was studied: Culicoides pulicaris, Tabanus bromius, Hybomitra schineri, Haematopota pluvialis and Stomoxys calcitrans.
Gnat
Definition:
(n.) A blood-sucking dipterous fly, of the genus Culex, undergoing a metamorphosis in water. The females have a proboscis armed with needlelike organs for penetrating the skin of animals. These are wanting in the males. In America they are generally called mosquitoes. See Mosquito.
(n.) Any fly resembling a Culex in form or habits; esp., in America, a small biting fly of the genus Simulium and allies, as the buffalo gnat, the black fly, etc.
Example Sentences:
(1) For once, the usually cool Mr Minchin does gnat know what to do … Ellen DeGeneres is a lady who is used to being in control.
(2) Gavin O'Reilly had dismissed him as a "gnat" he would like to swat but last year his father - INM's largest shareholder, with a 28.5% stake - started to make his peace with him.
(3) Since the primary defect in rd disease occurs in a gene(s) on mouse chromosome 5, our results suggest that Gnat-1 is not the rd gene.
(4) Experiments were designed to disrupt and extract flagellar microtubular components from spermatozoa of the fungus gnat.
(5) Culicoides gnats were monitored from April through November, 1981, on the Tejon Ranch, Kern County.
(6) The polytrophic ovarioles of three insect species, the fruit fly Drosophila melanogaster, the fungus gnat Bradysia tritici, and the honeybee Apis mellifera, were compared morphologically and with respect to the cytological organization of the peripheral somatic layers.
(7) Susceptibility of southern buffalo gnat larvae to Bacillus thuringiensis var.
(8) In the field, applications of house fly pupae and eye gnat, Hippelates pusio Loew, pupae dipped in acetone solutions of fenoxycarb significantly reduced population indices of the red imported fire ant, S. invicta, compared with commercial formulations of fenoxycarb (Logic) and hydramethylnon (Amdro).
(9) If in the Bible, sinners "strain out the gnat and swallow the camel", in Greece the sinful powers that be strain out pensions and swallow lists – in order, of course, to make them disappear.
(10) A total of 20,566 mosquitoes (18,505 females and 2,061 males) and 8,900 biting gnats were collected and assayed for virus.
(11) The larvae of green lacewings (Chrysopidae) may occasionally attack man as temporary ectoparasites, causing papular reactions similar to those produced by gnat bites.
(12) But this was TV standup, live standup’s idiotic attic-bound relation, and a world through which I soar like a mighty eagle through a cloud of diseased gnats.
(13) 1 August 2015 Kevin Whyman, an RAF-trained jet pilot, is killed at the CarFest motoring event in Cheshire after his Folland Gnat fails to pull up after performing a low-level, close-proximity pass.
(14) A straight fight between the pair would be like a face-off between and elephant and a gnat.
(15) The flagellar complex of the unusual motile spermatozoon of the fungus gnat, Rhynchosciara sp, does not conform to the usual "9 + 2" filament pattern but rather consists of over 350 pairs of filaments (doublet microtubules) distributed in a spiral array.
(16) The aircraft types were as follows: a) BA Hawk in 6 instances; b) a Mig 21-F-13 in 4; c) a Mig-21-Bis in 3; d) a Gnat Folland in 2; e) a Vampire Trainer in 1; and f) a MU-3 in 1 case.
(17) But what brings me here today is those times you dispense with those skewed news values entirely by printing stories which couldn't stand up to a gnat's fart.
(18) The gnat and the elephant How a tiny peace group irritated Europe's biggest arms company It seems curious that BAE Systems, Europe's biggest arms company with sales of £13bn a year, should have felt the need to spy on the Campaign Against Arms Trade (CAAT), a small peace group with a budget of less of £250,000 a year.
(19) The derivatives of strain Is-1 H14 containing a 4Md plasmid integrated into the chromosome synthesize small crystals and are not toxic for the gnat larvae.
(20) The experiment was conducted in South Bohemia at Chlum u Trebonĕ where seven species of gnats occurred in considerable abundancy, including the largest populations of Aedes sticticus (Meig.