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Tipula vestigipennis

From Wikipedia, the free encyclopedia

Tipula vestigipennis
male specimen of Tipula vestigipennis found in Montara, CA
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
Family: Tipulidae
Genus: Tipula
Subgenus: Triplicitipula
Species:
T. vestigipennis
Binomial name
Tipula vestigipennis
Doane, 1908

Tipula vestigipennis is a species of crane fly in the family Tipulidae, found in the western United States.[1]

Description

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Males are typically 15mm in body length with a wing length of 5-9mm. Females are typically 22mm in body length with a wing length of 5-6mm.

The overall color of the subjects can be described as "brownish yellow". The following is a list of characteristics:

  • Yellowish head and rostrum (gray above), sometimes with a brownish stripe
  • Palpi is yellowish towards the base and brownish towards the tip
  • The first, second, and third segments of the antennae are yellow with the remaining segments brownish and getting darker towards the tip of the antennae
  • Each brown antennae segment is furnished with 4-5 stiff hairs
  • Collar is yellowish with median and lateral brownish spots
  • Dorsum of the thorax is a light yellow
    • Dorsal stripes are yellow
    • Median stripe divided by a broad yellow line
  • Pleura and coxae are hairy
  • Seutellum is yellow and lighter laterally with a narrow median brown line
  • Metanotum is light yellow
  • Halteres are yellow with black knobs
  • Femora and tibia are yellowish and darker towards the tip
  • Tarsi are brownish to blackish
  • Abdomen has broad dorsal, lateral, and ventral brown stripes
  • Seventh and eighth segments are often almost entirely blackish or brownish
  • The posterior margin of the eighth sternite of the male is slightly curved, with a broad shallow median incision which is usually filled with light-colored membrane
    • From this membrane, two tufts of light yellow hairs arise, which cross each other close to the base at about a 45° angle
  • Broad sub-triangular chitinized plates are attached to the lateral margins of the eighth sternite which stand at right angles to it
  • Posterior margin of the ninth tergite has a broad and shallow circular incision
    • In the middle of this incision, two short triangular processes arise
  • The ovipositor is long and stout
    • Straight, acute upper valves
    • Lower valves almost reach the tip of the upper valves
    • Rounded tips

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Range

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Tipula vestigipennis is found exclusively in San Francisco County and San Mateo County.[1][3]

Ecology

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As with all Triplicitipula, T. vestigipennis is considered a pest. It is destructive to vegetation and crops.[3]

Taxonomy

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Tipula vestigipennis was first described by Rennie Wilbur Doane in Psyche (1908).[2][3]

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References

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  1. ^ a b "Tipula vestigipennis". iNaturalist. Retrieved 17 June 2025.
  2. ^ a b Doane, Rennie W. (1908). "Psyche" (PDF). A New Species of Tipula with Vestigial Wings. Stanford University. Retrieved 17 June 2025.Public Domain This article incorporates text from this source, which is in the public domain.
  3. ^ a b c Alexander, Charles P. (1967). "The Crane Flies of California" (PDF). Bulletin of the California Insect Survey Volume 8. Essig Museum of Entomology. Retrieved 17 June 2025.