本種は雌雄異形で、オスの触角第6節はM. consociatusやM. egonokiのように長く発達し、第1～5節を足した長さの1.2–1.4倍の長さ。台湾から記載され、その後、Masumoto & Okajima (2024)が南大東島、沖縄本島、久米島、西表島から記録した。腹部背板の側部に多数の微刺を備えること、オスの触角第６節が非常に長くなることで、東南アジアに広く分布するM. nilgiriensis (Ananthakrishnan, 1960)に似るがメスは腹部腹板の後縁近くに1対（時に1又は3本）の副刺毛を持つことで識別される。一方、オスでは両種の識別は難しい。寄主植物は不明だが、Morus属（クワ科）の葉から得られている。

M. auratus shows the sexual dimorphism: male antennal segment VI is elongate and much longer than that of female such as M. consociatus and M. egonoki, and 1.2–1.4 times as long as combined length of segments I-V. This species was described from Taiwan. Thereafter, Masumoto & Okajima (2024) recorded it from the Ryukyus, Japan. Its host plant is unknown but it has been collected from leaves of Morus [Moraceae]. It is very similar to M. nilgiriensis (Ananthakrishnan) widely distributed in Southeast Asia by having the abdominal tergites with ciliate microtrichia laterally in female and elongate antennal segment VI in male. However, this species can be distinguished from nilgiriensis by having the abdominal sternites with a pair (rarely only one or three) of discal setae in female (no sternal discal setae in nilgiriensis). However, these two species are difficult to distinguished from each other satisfactorily in male.

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  Female, slide-mounted specimen

  

  Male, slide-mounted specimen