Dilatitibialis poortmanni is a species of beetle of the family Coccinellidae. It is found in Brazil.
Adults reach a length of about 2.6âÂÂ3.4 mm. They have a yellow body. The pronotum has a large dark brown marking and two small brown spots. The sutural, lateral and apical margins of the elytron have a brown border and there are four large brown spots.