Interpopulation differences in egg sculpturing of the stick insect, Clonopsis gallica (Charp.) (Phasmatodea: Bacillidae)
Identifieur interne : 001174 ( Main/Exploration ); précédent : 001173; suivant : 001175Interpopulation differences in egg sculpturing of the stick insect, Clonopsis gallica (Charp.) (Phasmatodea: Bacillidae)
Auteurs : Valerio Scali [Italie] ; Massimo Mazzini [Italie]Source :
- International Journal of Insect Morphology and Embryology [ 0020-7322 ] ; 1982.
Abstract
Eggs of 6 Clonopsis gallica (Phasmatodea: Bacillidae) populations have been investigated by means of scanning electron microscopy (SEM) to detect intraspecific differences. Two main chorionic patterns have been observed: type 1 is common to 5 populations, while type 2 is found in the Motril (South Spain) sample. Type-2 sculpturing differs from type-1 in the absence of prominences on the operculum; and hemispheric, isolated mamelons replace the smooth and diffuse prominences of the common pattern on the egg capsule. This suggests that a considerable degree of difference exists in the South Spanish C. gallica. In the 5 type-1 populations, only minor and partially overlapping differences in the opercular pattern have been detected, so that the existence of subspecific taxa is very unlikely among them. Therefore, the Calabrian subspecies C. gallica affinis does not appear to be tenable.This is the 1st report on egg interpopulation differences in the Phasmatodea. These findings suggest further field search, along with karyological and gene-enzyme system analysis, within the C. gallica complex.
Url:
DOI: 10.1016/S0020-7322(82)80004-4
Affiliations:
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