The morphology of the immature stages of (Kirby, 1808) (Coleoptera, Brentidae) and notes on its life cycle.

The immature stages (egg, mature larva and pupa) of (Kirby, 1808), as well as its development cycle and the phenology of its developmental stages, are described for the first time. The larva and pupa of have typical morphological features of the subfamily Apioninae. Morphological data on the immature stages were compared with the only fully described species, (Germar, 1817).

The morphology of the preimaginal stages of (Germar, 1821) (Curculionidae, Coleoptera) and notes on its biology.

As yet little is known of the bionomics of weevils of the genus Pierce, 1919; current knowledge is limited to data on the morphology and biology of the preimaginal stages of certain species. This paper includes original information on the life cycle of (Germar, 1821). It presents the morphology of the egg, last larva (L) and pupa.

First description of the larva of Thomson, 1858, with comments on chaetotaxy, pupa, and life history based on two saproxylic species from Europe (Staphylinidae, Aleocharinae, Athetini).

The paper describes the morphological ultrastructure of the previously unknown early (L1) and late larval instars (L2-3) of , including chaetotaxy, pupal cocoon, prepupa, and pupa, based on the saproxylic species Erichson and Gravenhorst. Diagnostic larval characters for the genus are given for the first time. Morphological differences between mature larvae of these two species relate to the colouration and degree of flattening of the body, details of antennal structure, anterior margin of the labrum, mandibles, and mala.

The morphology of the preimaginal stages of Squamapion elongatum (Germar, 1817) (Coleoptera, Curculionoidea, Apionidae) and notes on its biology.

Data on the morphology of the egg, mature larva (L3) and pupa of Squamapion elongatum (Germar, 1817) are presented. The development cycle of this species lasts 51-54 days: a 12-day egg period, a 30-day larval period, and a 12-day pupal period, on average. The larvae are attacked by parasitic hymenopterans of the superfamily Chalcidoidea.