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The proboscis, as seen in adult Lepidoptera, is one of the defining characteristics of the morphology of the order; it is a long tube formed by the paired galeae of the maxillae. Unlike sucking organs in other orders of insects, the Lepidopteran proboscis can coil up so completely that it can fit under the head when not in use.
A syrphid fly using its proboscis to reach the nectar of a flower. A proboscis (/ p r oʊ ˈ b ɒ s ɪ s,-k ɪ s /) is an elongated appendage from the head of an animal, either a vertebrate or an invertebrate. In invertebrates, the term usually refers to tubular mouthparts used for feeding and sucking. In vertebrates, a proboscis is an ...
In bees, the maxillae and labium have been modified and fused to form a nectar-sucking proboscis. In the order Hemiptera, the true bugs, plant hoppers, etc., the mouthparts have been modified to form a beak for piercing. The labium forms a sheath around a set of stylets that consist of an outer pair of mandibles and an inner pair of maxillae.
In the honey bee (Hymenoptera: Apidae: Apis mellifera), the elongated and fused labial glossae form a hairy tongue, which is surrounded by the maxillary galeae and the labial palps to form a tubular proboscis containing a food canal. In feeding, the tongue is dipped into the nectar or honey, which adheres to the hairs, and then is retracted so ...
The strongly sclerotized proboscis is composed of the labium and maxillae which form a food canal, the labrum and a piercing organ, the hypopharynx. The proboscis is either rounded in cross section or compressed laterally or dorsoventrally; it is usually stout and straight and is sometimes able to penetrate through the hard integument of ...
The shape and dimensions of the proboscis have evolved to give different species a wider and, therefore, more advantageous diet. [3] There is an allometric scaling relationship between body mass of Lepidoptera and length of proboscis [22] from which an interesting adaptive departure is the unusually long-tongued sphinx moth Xanthopan morganii ...
Some species in the subfamily Pangoniinae have an exceptionally long proboscis (tubular mouthpart). [6] The larvae are long and cylindrical or spindle-shaped with small heads and 12 body segments. They have rings of tubercles (warty outgrowths) known as pseudopods around the segments, and also bands of short setae (bristles).
Lepidoptera (/ ˌ l ɛ p ɪ ˈ d ɒ p t ər ə / LEP-ih-DOP-tər-ə) or lepidopterans is an order of winged insects which includes butterflies and moths.About 180,000 species of the Lepidoptera have been described, representing 10% of the total described species of living organisms, [1] [2] making it the second largest insect order (behind Coleoptera) with 126 families [3] and 46 superfamilies ...