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Nanoraphidia
''Nanoraphidia'' is an extinct monotypic genus of snakefly in the family Mesoraphidiidae containing the single species ''Nanoraphidia electroburmica''.
The genus name is derived from a combination of the Greek ''nano'' (dwarf) and the snakefly genus ''Raphidia'', and the species name from the Latin ''electrum'' (amber) and Burma, the former name of Myanmar.〔 The genus is known from only the holotype, a single, partial adult, now deposited in the American Museum of Natural History as specimen number Bu-092.〔 The amber specimen is from deposits in Tanai Village, Kachin State northwest of Myitkyina, Myanmar.
The specimen has a badly disarticulated thorax and abdomen, which are present in the amber as integumental debris, however the head, wings, and anterior legs are in good condition.〔 ''Nanoraphidia electroburmica'' is the smallest known Raphidioptera species, living or extinct, the fore wings being only long.〔 The genus is also the first to be described from a specimen of old world amber. ''Nanoraphidia'' is separatable from other Mesoraphidiidae genera by the small size of specimens and distinct vein structure of the wings.〔 The wings have an expanded costal area which is similar in appearance to the costal ares in ''Cretinocellia'' and ''Lugala''. Both of these genera, however, belong to the Baissopteridae family and have many more crossveins and cells between Rs and M veins. The specimen shows ''N. electroburmica'' to have had a brown coloration to the body and a hyaline appearance to the wings.〔
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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