Add content search web part programmatically

I trying to add a Content serach webpart to a page by Activation feature. But im getting wrong web part when trying i want Content serach part to be able to query content from other parts in the site collection

using (SPWeb web = siteCollection.RootWeb)
        {
            var file = web.GetFile(PageUrl);
            var prevAllowUnsafe = web.AllowUnsafeUpdates;
            web.AllowUnsafeUpdates = true;
            string quey = "path"+ query ;

                using (var webMngr = web.GetLimitedWebPartManager(file.Url, System.Web.UI.WebControls.WebParts.PersonalizationScope.Shared))
            {
            // this is wrong ..... I want Content search web part not query
               ContentByQueryWebPart contentByQueryWebPart = new ContentByQueryWebPart();
                contentByQueryWebPart.Title = "Test test";

                contentByQueryWebPart.QueryOverride = quey;
                webMngr.AddWebPart(contentByQueryWebPart, WebPartZoneId, 0);

                webMngr.SaveChanges(contentByQueryWebPart);
                web.Update();