mealworms, bee moths, small crickets, pieces of nightcrawler will all do just fine. The key thing to remember is that it's a salamander-- they can go w/out food for quite some time. Don't panic if it misses a meal or two. i feed my tigers twice a week, and have let them go w/out for several weeks w/ no ill affects whatsoever.
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2 tham radix
1 Chicago Tham s. semifasciatus
2 elaphe vulpina
1 gray tiger salamander
4 Aphonopelma hentzi
1 G rosea
1 Haplo minax
1 Brachy angustum
1 Brachy sabulosum
1 Brachy vagans
1 Cent. hentzi scorp