The merger of Meituan and Dianping could herald a bigger consolidation.

Meituan, with about half of the market, will join forces with Dianping, which has about 30%.

The motorcyclists were couriers from Ele. me, a six-year-old startup, Groupon-like Meituan. comand, Baidu Waimai, a food-ordering service launched by search engine giant Baidu Inc.