(n.) A little hood or veil, resembling an extinguisher in form and position, covering each of the small flasklike capsules which contain the spores of mosses; also, any similar covering body.
Example Sentences:
(1) Field observations and experiments indicate that the closely related, fruit-piercing Oraesia emarginata is not skin-piercing blood-sucking--a habit likely to be exhibited mainly in humid equatorial regions by a few Calyptra only.
(2) Of the scarce Calyptra minuticornis, C. orthograpta and C. labilis, 51, 24, and 7 adults, respectively, were observed during some 600 night inspections at over 100 sites in 1965--1967 and 1971--1977.
Diptera
Definition:
(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.