The eight group winners and three best runners-up will join European representatives Celtic, Rangers, Heart of Midlothian, Dundee United and Motherwell in the last 16.
GROUP A
Saturday July 9
Dumbarton v Stirling Albion (3.00pm)
Sunday July 10
Peterhead v Aberdeen (Premier Sports, 3.00pm)
Wednesday July 13
Aberdeen v Dumbarton (7.45pm)
Raith Rovers v Peterhead (7.45pm)
Saturday July 16
Peterhead v Dumbarton (3.00pm)
Raith Rovers v Stirling Albion (3.00pm)
Tuesday July 19
Dumbarton v Raith Rovers (7.45pm)
Stirling Albion v Aberdeen (7.45pm)
Saturday July 23
Stirling Albion v Peterhead (3.00pm)
Sunday July 24
Aberdeen v Raith Rovers (Premier Sports, 3.00pm)
GROUP B
Saturday July 9
Fraserburgh v Kilmarnock (3.00pm)
Stenhousemuir v Partick Thistle (3.00pm)
Tuesday July 12
Fraserburgh v Montrose (7.45pm)
Wednesday July 13
Kilmarnock v Partick Thistle (Premier Sports, 7.45pm)
Saturday July 16
Montrose v Kilmarnock (3.00pm)
Stenhousemuir v Fraserburgh (3.00pm)
Tuesday July 19
Montrose v Stenhousemuir (7.45pm)
Partick Thistle v Fraserburgh (7.45pm)
Saturday July 23
Kilmarnock v Stenhousemuir (3.00pm)
Partick Thistle v Montrose (3.00pm)
GROUP C
Saturday July 9
Buckie Thistle v Ross County (3.00pm)
East Fife v Dunfermline Athletic (3.00pm)
Tuesday July 12
Alloa Athletic v East Fife (7.45pm)
Dunfermline Athletic v Buckie Thistle (7.45pm)
Saturday July 16
Buckie Thistle v Alloa Athletic (3.00pm)
Ross County v Dunfermline Athletic (3.00pm)
Tuesday July 19
Alloa Athletic v Ross County (7.45pm)
East Fife v Buckie Thistle (7.45pm)
Saturday July 23
Dunfermline Athletic v Alloa Athletic (3.00pm)
Ross County v East Fife (3.00pm)
GROUP D
Saturday July 9
Hibernian v Clyde (3.00pm)
Morton v Falkirk (3.00pm)
Tuesday July 12
Falkirk v Hibernian (Premier Sports, 7.45pm)
Wednesday July 13
Clyde v Bonnyrigg Rose Athletic (7.45pm)
Saturday July 16
Clyde v Morton (3.00pm)
Sunday July 17
Bonnyrigg Rose Athletic v Hibernian (Premier Sports, 3.00pm)
Wednesday July 20
Bonnyrigg Rose Athletic v Falkirk (7.45pm)
Hibernian v Morton (7.45pm)
Saturday July 23
Falkirk v Clyde (3.00pm)
Morton v Bonnyrigg Rose Athletic (3.00pm)
GROUP E
Saturday July 9
Cowdenbeath v Airdrieonians (3.00pm)
St Mirren v Arbroath (3.00pm)
Tuesday July 12
Airdrieonians v Edinburgh City (7.45pm)
Wednesday July 13
Arbroath v Cowdenbeath (7.45pm)
Saturday July 16
Cowdenbeath v St Mirren (3.00pm)
Edinburgh City v Arbroath (3.00pm)
Tuesday July 19
Airdrieonians v St Mirren (7.45pm)
Wednesday July 20
Edinburgh City v Cowdenbeath (7.45pm)
Saturday July 23
Arbroath v Airdrieonians (3.00pm)
St Mirren v Edinburgh City (3.00pm)
GROUP F
Saturday July 9
Ayr United v Elgin City (3.00pm)
Queen of the South v Annan Athletic (3.00pm)
Tuesday July 12
Ayr United v Queen of the South (7.45pm)
St Johnstone v Annan Athletic (7.45pm)
Saturday July 16
Annan Athletic v Elgin City (3.00pm)
Queen of the South v St Johnstone (3.00pm)
Tuesday July 19
Annan Athletic v Ayr United (7.45pm)
Elgin City v St Johnstone (7.45pm)
Saturday July 23
Elgin City v Queen of the South (3.00pm)
St Johnstone v Ayr United (3.00pm)
GROUP G
Saturday July 9
Albion Rovers v Livingston (3.00pm)
Kelty Hearts v Inverness Caledonian Thistle (3.00pm)
Tuesday July 12
Albion Rovers v Cove Rangers (7.45pm)
Livingston v Inverness Caledonian Thistle (7.45pm)
Saturday July 16
Cove Rangers v Livingston (3.00pm)
Kelty Hearts v Albion Rovers (3.00pm)
Tuesday July 19
Cove Rangers v Kelty Hearts (7.45pm)
Inverness Caledonian Thistle v Albion Rovers (7.45pm)
Saturday July 23
Inverness Caledonian Thistle v Cove Rangers (3.00pm)
Livingston v Kelty Hearts (3.00pm)
GROUP H
Saturday July 9
Dundee v Hamilton Academical (3.00pm)
Stranraer v Queen's Park (3.00pm)
Tuesday July 12
Hamilton Academical v Stranraer (7.45pm)
Queen's Park v Forfar Athletic (7.45pm)
Saturday July 16
Forfar Athletic v Hamilton Academical (3.00pm)
Stranraer v Dundee (3.00pm)
Tuesday July 19
Forfar Athletic v Stranraer (7.45pm)
Queen's Park v Dundee (7.45pm)
Saturday July 23
Dundee v Forfar Athletic (3.00pm)
Hamilton Academical v Queen's Park (3.00pm)
DATES FOR FUTURE ROUNDS
Second round
Midweek of August 30/31
Quarter-finals
Midweek of October 18-20
Semi-finals
Weekend of January 14/15
Final
Sunday February 26
