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Examples of frenulo-retinacular wing coupling in male and female moths Other groups of moth have a frenulum on the hindwing that hooks under a retinaculum on the forewing. [ 4 ] The retinaculum is a hook or tuft on the underside of the forewing of some moths .
The Lepidoptera have developed a wide variety of morphological wing-coupling mechanisms in the imago which render these taxa "functionally dipterous" (two winged). [33] All but the most basal forms exhibit this wing coupling. [34] There are three different types of mechanisms – jugal, frenulo–retinacular, and amplexiform. [35]
Many moths have a frenulum which is a filament arising from the hindwing and coupling (matching up) with barbs on the forewing. The frenulum can be observed only when a specimen is in hand. There is only one known species of butterfly with a frenulum, which is the male regent skipper Euschemon rafflesia. [5]
Lepidopterology (from Ancient Greek λεπίδος (lepídos) 'scale' πτερόν (pterón) 'wing' and -λογία [1]) is a branch of entomology concerning the scientific study of moths and the two superfamilies of butterflies. Someone who studies in this field is a lepidopterist or, archaically, an aurelian.
Frenulo-retinacular wing coupling in male and female moths. Some four-winged insect orders, such as the Lepidoptera, have developed morphological wing coupling mechanisms in the imago which render these taxa functionally two-winged. [30] All but the most basal forms exhibit this wing-coupling. [31]
Wing-coupling – Row of hooks on the leading edge of hindwing engage the hind margin of the forewing, strongly couple the wings in flight. Line of wing folding – Some species, including Vespidae, the forewing are longitudinally folded along the 'line of wing folding' at rest. Pterostigma – is present for some species.
The third and rather small butterfly superfamily is the moth-butterflies (Hedyloidea), which are restricted to the Neotropics, but recent phylogenetic analyses suggest the traditional Papilionoidea are paraphyletic, thus the subfamilies should be reorganized to reflect true cladistic relationships. [3] [4] Grass Skipper Butterfly atalopedes ...
A sample solution in the Lorenz attractor when ρ = 28, σ = 10, and β = 8 / 3 . The Lorenz system is a system of ordinary differential equations first studied by mathematician and meteorologist Edward Lorenz.