The Westmeath champions were in superior form throughout their meeting with Killoe.
Defensive hunger and attacking accuracy saw St Loman's over the line against Killoe Young Emmets yesterday.
The Westmeath Champions were impressive 1-20 to 1-10 winners in their Leinster Senior Football Quarter Final in Longford.
Ronan O'Toole's 12th minute goal helped Loman's on the way to a nine point lead after 15 minutes.
Paddy Dowdall's side saw out the game from there, the club's manager and former player says it was a complete performance:
Naas will provide the opposition in that semi-final in two weeks after they won out against Summerhill of Meath.
St Mary's Ardee will face Kilmacud Crokes in the other semi final.
The Louth champions were convincing winners over Blessington while Crokes were far too strong for Eire Og of Carlow on Saturday.
Elsewhere,
Kilcoo advanced to the quarter-finals of the Ulster Championship after a 2-13 to 1-7 defeat of Derrygonnelly Harps.
Paudie Clifford captained East Kerry to a 2-10 to 0-15 win over Mid Kerry in the Kerry county final, while Corofin were 1-11 to 1-9 winners over Moycullen in Galway.
Newcastle West edged out Adare by 3-5 to 0-13 in the Limerick decider at the Gaelic Grounds.
Ballygunner's bid for a third successive Munster club hurling title remains on course.
The Waterford champions hammered Sarsfields of Cork by 2-20 to 0-9 in yesterday's quarter-final at Walsh Park.
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