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Female scale insects, unusually for Hemiptera, retain the immature external morphology at sexual maturity. Adult males have wings but never feed and die within a day or two. Male scale insects are unusual in possessing only one pair of wings, thus making them resemble true flies ([http://en.wikipedia.org/wiki/Diptera Diptera]), though they lack the halteres (rudimentary hind wings) seen in flies, and have tail filaments, which do not occur in flies. The specifics of their reproductive systems vary considerably within the group, including hermaphroditism and at least seven forms of parthenogenesis.
Female scale insects, unusually for Hemiptera, retain the immature external morphology at sexual maturity. Adult males have wings but never feed and die within a day or two. Male scale insects are unusual in possessing only one pair of wings, thus making them resemble true flies ([http://en.wikipedia.org/wiki/Diptera Diptera]), though they lack the halteres (rudimentary hind wings) seen in flies, and have tail filaments, which do not occur in flies. The specifics of their reproductive systems vary considerably within the group, including hermaphroditism and at least seven forms of parthenogenesis.
==Treatment==
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