Atasthalistis pyrocosma is a moth in the family Gelechiidae. It was described by Edward Meyrick in 1886. It is found on New Guinea[1] and Australia, where it has been recorded from Queensland.[2]
The wingspan is about 22 mm. The forewings are black, slightly purplish tinged with a rather narrow pale whitish-yellow streak close beneath the costa from the base to four-fifths, leaving the costal edge black, attenuated at the apex. There is a minute yellow-whitish costal dot near beyond the apex of this and a deep orange hindmarginal fascia from the apex to the anal angle, moderate on the costa, gradually attenuated to a point beneath. There is also an interrupted black hindmarginal line. The hindwings are bright orange with a large blackish apical patch, bounded by a slightly curved line from three-fifths of the costa to the middle of the hindmargin.[3]