| Abstrak/Abstract |
Crane fly from genus Dolichopeza has a wide distribution over Indonesia's archipelago, but just a
few research data has been reported. Dolichopeza sp. has a unique fly pattern: wobbling updown
as if transverse wave, and often seen hanging at the spider's web. It has a potential model
for the study of biomimetic. The aim of this research was to study the behaviour of Dolichopeza
sp. with a mechanical approach. The specimen collected from Karst region at Yogyakarta,
Indonesia. Morphometry parameters of legs were measured and calculated. The result showed
that the proportion of front leg segments (femur: tibia: tarsus) is 0.9-1-0.95, middle leg segments:
1.01- 1.00 -0.79, and hind leg segments: 1.04- 1.00- 0.79. The front leg's tarsus is used for
hanging on spider's web and possible reaching lowest weight force (W). The front leg's tarsus
was longer than others (r=?/F). Hind leg has longest femur due to energy saving and lift force
minimizing. The weight force (W) was heavier than lift force (L) causes of unique flying pattern
and lift force (L) of the wing was actually supported by legs swing.
Keywords: biomimetic, Crane Fly, fly pattern, mechanical approach, morphometry
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