A founding female (fundatrix) in an artificial nest in the laboratory, just after eclosion is taken care of by workers of L. brunneus. Observe the long rostrum exceeding body length.
Eggs of Stomaphis quercus of about 3 mm length, adhered within a cavity under the cork.
Image obtained after peeling off the cork. Females of Stomaphis. Eggs are sticked to the surface by a substance secreted by the females during egg laying. (La Vajol, January 2003).