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Ancyridris
''Ancyridris'' is a small genus of myrmicine ants, with only two described species from New Guinea.
==Description==
The eyes are well developed. The long and narrow mesosoma is shaped somewhat as in ''Aphaenogaster''. The propodeum bears two long, flattened, hooked spines resembling those of ''Polyrhachis bihamata''. On the pronotum there are long hairs. The worker of ''A. polyrhachioides'' is almost 6 mm long. Apart from the curious anchor-like spines on its propodeum, ''Ancyridris'' bears a general resemblance to ''Aphaenogaster'' or certain worker forms of ''Pheidole''. Wheeler suspected some aberrant or archaic group, "another of the living fossils which are continually turning up in the Papuan and Australian Regions".〔 ''Ancyridris'' in fact seems close to ''Lordomyrma''. It is the only ant genus currently thought to be endemic to the island of New Guinea.
''A. rupicapra'' was originally described in the genus ''Pheidole (Pheidolacanthinus)''. Its workers are 4 mm long.〔 ''A. polyrhachioides'' is black, and ''A. rupicapra'' reddish-brown (as implied by its specific epithet which translates as "red goat", referring as well to the goat-horn like propodeal spines. The sole known rupicapra specimen was collected in the mountains of the Sepik River catchment by the German colonial Kaiserin Augustafluss Expedition (1912–13).
The two original type specimens of ''A. polyrhachioides'' were recovered somewhat damaged from the stomach of an eastern blue-grey robin (''Peneothello cyanus subcyaneus'')〔''"Poecilodryas cyanea subcyanea"'' in Wheeler (1935) is a ''lapsus'' - though placed in ''Poecilodryas'' at that time, the specific epithet was ''cyana''.〕 which was caught on Mount Misim in the Morobe District of New Guinea.〔
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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