Lepidoptera
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Moths are often arbitrarily split into two groups - the larger moths, or macrolepidoptera (macros) and the smaller moths, or microlepidoptera (micros). While the micros tend to be more primitive in evolutionary terms, this is not always the case; and, some micros are in fact larger than some of the macros! So, like the division between moths and butterflies, this distinction is arbitrary too, and has no scientific basis.
The one advantage these subdivisions do have is that people can study and get to know the Lepidoptera in stages! Often, people start with the butterflies (around 70 species in the UK) then their curiosity takes them on to the larger moths (around 900 species) and finally to the microlepidoptera (around 1,500 species). Most of these species are resident in the UK, others are recorded when they migrate here every year from warmer climes.
The history and characteristics of two cells lines developed from primary explants of pupal tissue from the insect, Spodoptera frugiperda (J.E. Smith), are described. One cell line, IPLB-SF 21, was developed with hemolymph-supplemented medium and has been maintained continuously on the medium. The second cell line, IPLB-SF-1254, was developed with a medium containing a combination of vertebrate sera plus hemolymph and was adapted to hemolyphn-free medium at the 6th passage. The IPLB-SF-21 cell line has a population doubling time of 26 to 30 hr; the doubling time of the IPLB-SF-1254 line is 36 hr. The chromosomal morphology and distribution was typical of other lepidopteran cell lines. Serological studies showed that both cell lines have at least one antigen which also is common is tissue antigens from pupae of Spodoptera frugiperda.
The course is designed for students, amateur naturalists, conservation biologists, and other biologists who have an interest in learning more about butterfly and moth taxonomy. It will emphasize taxonomy, ecology, and field identification of lepidopterans in Southeastern Arizona. Lectures will include background information on the morphology, biology, and ecology of animals and their importance in pollination biology. Field trips will provide participants with collecting, sampling, and observation techniques; and lab work will provide instruction on specimen identification, preparation, dissection, and labeling.
G.A.W. Herrich-Schaffer (plusieurs volumes, 1843-1856), et Edward Meyrick (1895) basent leur classification sur le nervurage des ailes. Au même moment, Sir George Hampson travaille sur la distinction entre Microlepidoptera et Macrolepidoptera. 59ce067264
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