LSJM which glosses MALAKOS in this context as "pathic" (an English word
I never heard of, but cf. Latin PATHICUS in Cat 16.2 57.2, Juv 2.99),
and lists the following cites: PHib.1.54.11 (iii BC), I.Ep.Cor.6.9,
Vett.Vall.113.12, D[iogenes] L[aertius] 7.173.
BAGD which defines it as "soft, effeminate, esp. of catamites" adds
the following references: Dionys.Hal.7,2,4; Dio.Chrys.49;
Ptolem.Apotel.3,15,10; and Plautus Miles 668 CINAEDUS MALACUS.
These references are not very accessible so I cannot tell you if they
are as specific as you are looking for.
-- Stephen C. Carlson : Poetry speaks of aspirations, email@example.com : and songs chant the words. http://www.mindspring.com/~scarlson/ : -- Shujing 2.35