Larvæ presenting at the extremity of the abdomen two conspicuous protuberances, or "anal tubercles," as in the following group, Coccidinæ; abdominal cleft and lobes absent.
Adult females exhibiting the abdominal cleft and lobes of Lecanidinæ. Insects naked or covered with secretion.
The formation of this group has been necessary to include certain insects, e.g., Kermes, which are evidently intermediate between the Lecanidinæ and the Coccidinæ, exhibiting at various stages the characters of each.
SUBDIVISIONS AND GENERA.
Subdivision I.
Adult females naked or covered with horny secretion, without fringe
Kermitidæ.
Adult females globular
Kermes.
Subdivision II.