A characterization of the egg capsules of Anacroneuria starki and A. talamanca (Plecoptera: Perlidae), with a suggestion about the distribution of stoneflies in the tropics

• Authors: S. Fenoglio , E. Rosciszewska
• Languages of publication: EN

Abstracts

EN

In this study, the structure of egg capsules of two species of Neotropical Perlidae: Anacroneuria starki FENOGLIO and MORISI (2001a) and A. talamanca STARK (1998), were examined. Eggs were studied using a scanning electron microscope. A morphological characterization of these eggshells is presented: layers, attachment structures and other anatomical features are described. The egg capsules of the two species differ in some aspects, but both are characterized by thin-layered egg coverings (vitelline envelope, chorion and extrachorion). On the basis of these observations, the importance of eggshell structure for the biogeographical distribution of Plecoptera in the tropics is discussed. A key role for egg capsules in the adaptation process of Plecoptera to aquatic environments of the Neotropics is hypothesized.

Keywords

EN

ANACRONEURIA; EGG CAPSULE; INSECTA; NEOTROPICS; PLECOPTERA

Discipline

• EXPERIMENTAL_BIOLOGY_&_MEDICINE: EXPERIMENTAL BIOLOGY & MEDICINE

• Journal: Folia Biologica
• Year: 2003
• Volume: 51
• Issue: 3-4
• Pages: 159-164

Contributors

author

S. Fenoglio

author

E. Rosciszewska

• Document Type: ARTICLE
• Publication order reference: S. Fenoglio, Department of Advanced Sciences and Technologies, University of Eastern Piedmont, Via Cavour 84, Alessandria, 15 100 Italy