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We report two new dramatically dusty main sequence stars: HD 131488 (A1V) andHD 121191 (A8V). HD 131488 is found to have substantial amounts of dust in itsterrestrial planet zone (L_IR/L_bol~4x10^-3), cooler dust further out in itsplanetary system, and an unusual mid-infrared spectral feature. HD 121191 showsterrestrial planet zone dust (L_IR/L_bol~2.3x10^-3), hints of cooler dust, andshares the unusual mid-infrared spectral shape identified in HD 131488. Thesetwo stars belong to sub-groups of the Scorpius-Centaurus OB association andhave ages of ~10 Myr. HD 131488 and HD 121191 are the dustiest main sequenceA-type stars currently known. Early-type stars that host substantial innerplanetary system dust are thus far found only within the age range of 5-20 Myr.

Copious Amounts of Hot and Cold Dust Orbiting the Main Sequence A-type Stars HD 131488 and HD 121191