Cyllogenes janetae, the scarce evening brown is a brown (Satyrinae) butterfly that is found in the Himalayas.[1] Subspecies Cyllogenes janetae orientalis Monastyrskii, 2005 is found in Vietnam.
The butterfly is found in the Himalayas in Sikkim, Bhutan, northern West Bengal, Assam, Manipur and Nagaland.[1]
In 1932 William Harry Evans described it as very rare.[2]
The scarce evening brown is 90 to 95 mm in wingspan and broadly resembles the Melanitis evening browns, with rich brown colour above. The upper forewing has a broad yellow apical band which reaches the termen. The male, unlike Cyllogenes suradeva does not have a brand on the upper forewing.[3]
. W.H. . William Harry Evans . The Identification of Indian Butterflies . 2nd . Mumbai, India . . 1932 . 127, ser no D23.2.
. Mark Alexander Wynter-Blyth . Butterflies of the Indian Region . 1957 . Bombay, India . . 978-8170192329 . 125 .