
Une idée ? Merci !

Norbert Verneau : Martinique : Sainte-Marie : 97230 : 01/05/2010
Altitude : 0 m - Taille : environ 2 mm
Réf. : 241381
Forum communautaire francophone des insectes et autres arthropodes
Animateurs : lauzette, guillaume
Il vaudrait peut-être mieux rester prudents quant à la validation de cette bestiole ?In life, I. insignis can be distinguished from most species of Orthezia by the large proportion of the dorsum lacking a waxy cover, leaving the olive-green body colour visible. Most species of Orthezia have dorsal wax plates more fully developed, with little or no bare cuticle visible. In many parts of the world I. insignis is the only common ortheziid pest. However, in its native Neotropical Region, economically important species of Orthezia are present with which it could be confused. It can only be identified authoritatively by examination of slide-mounted adult females under a compound light microscope and use of taxonomic keys. Williams and Watson (1990) describe a method for preparation of slide mounts, and a good key is provided by Morrison (1952).