The English champions had the quarter-final all but wrapped up athalf-time where they had established a 16 point lead. Now they will travel to Dublin to face Munster inthe last four at Lansdowne Road on April 25.
Last season Wasps were the first club to win the English titlefollowing a play-off final, thrashing Gloucester 39-3 at Twickenham. That result was made all the more bitter for the Cherry andWhites, coached by former Wasps chief Nigel Melville, as they had finished theregular season 15 points clear of their second-placed rivals.
And it was a similar story on Sunday when Wasps established a 19-3 half-time lead. They outscored Gloucester three tries to nil in theopening period - including a controversial penalty try awarded by Frenchreferee Joel Jutge. It was not until the 18th minute that hosts Wasps opened thescoring after dominating territory. England lock Simon Shaw won a lineout on the far side and the ballwas worked across field where hooker Trevor Leota fed Rob Howley. The former Wales scrum-half exchanged passes on the blindside withStuart Abbott before bursting through the cover for a well-worked try. Fly-half Alex King converted and Wasps were 7-0 up.
But barely a minute later Gloucester hit back when, followingflanker Paul
Wasps dominated territory but struggled to convert that intopoints with King missing three goalkicks. But that chnaged in the 37th minute.
The hosts drove from a lineout and Gloucester initially infringedby coming in from the side of a rolling maul. When the maul collapsed closed to the Gloucester line, Jutgesignalled a penalty try although it was by no means certain that Wasps would havecrossed for a score. King converted and Wasps were 14-3 up.
Worse followed for Gloucester when hooker Chris Fortey wassin-binned by Jutge in first-half injury-time, the official losing patience withthe visitors after they had repeatedly come in from the wrong side.
Wasps capitalised immediately on their man advantage, taking anattacking penalty and driving over England captain Lawrence Dallaglio, the No.8buried under a pile of bodies as he went over for the try in the fifthminute of stoppage time.
Then, just two minutes into the second half with Gloucester stilldown to 14 men, Samoa's Leota powered over for Wasps's fourth try.
Dallaglio was sin-binned for a needless fracas with fellow EnglandWorld Cup-winner and Gloucester prop Trevor Woodman in the 58th minute but Melville's side were unable to make anything of their man advantage. Instead King's penalty and a stoppage time try by replacementAyoola Erinle piled on the misery for Gloucester.