hover flys造句

• Here's a quote from a guide to insects : " Hover Flies.
• Other beneficials are assassin bugs, damsel bugs, ground beetles, hover flies and Trichogramma wasps.
• The Dutch study evaluated plants, birds, hover flies and bees in 78 pairs of fields.
• The hover fly resembles a bee-- it has either black-and-yellow or black-and-white stripes on its abdomen.
• Hover flies like the Trichopsomyia are small flies with large heads and eyes, and small antennae.
• The side photo of the insect is certainly a fly, probably a hover fly, Family Syrphidae.
• However, hover flies and bees showed slight increases.
• Its pinkish flower, with its pouting, spoon-shaped lower petal and the offer of sweet nectar, lures an unsuspecting hover fly.
• Like other hover flies, they are common visitors to flowers, especially in late summer and autumn, and can be significant pollinators.
• Some hover flies like " Metasyrphus corollae " have been known to undertake long flights in response to aphid population spurts.
• You can't buy hover flies, but you can attract them with dill, fennel, parsley, marigolds, scabiosa, baby-blue-eyes, candytuft, alyssum, tansy, cosmos, coreopsis, coriander, Queen Anne's lace and yarrow.
• The hover fly ( Syrphidae ), or flower fly, that you may have seen looking for nectar among your flowers, also searches for the honeydew that aphids secrete.
• Instead, he suggests maintaining patches of small-flowered plants such as parsley, dill, yarrow, sweet alyssum and wild carrot, which attract aphid-eating hover flies, lady bugs, and braconid wasps.
• Many of the insects we may think of as annoyances, including sweat bees and hover flies, are actually workhorses in the garden when it is time to pollinate.
• :: surely they'll just go of their own volition when they turn into hover flies, although it would help to know where they are at present . talk ) 07 : 08, 26 June 2008 ( UTC)
• Pollen transfer has been suggested to occur by body surface transport on mouthparts and head surfaces like that in bee flies and hover flies, but no such associated pollen has been found, though the insects were preserved in amber.
• Males of fly species such as " Cuterebra ", many hover flies, bee flies ( Bombyliidae ) and fruit flies ( Tephritidae ) maintain territories within which they engage in aerial pursuit to drive away intruding males and other species.