Fig. 3From: Fine structure of the silk spinning system in the caddisworm, Hydatophylax nigrovittatus (Trichoptera: Limnephilidae)a-d Scanning electron micrographs of the composite silken case produced by the silk ribbons (Sk) and adhesive coats (Ad) of the caddisworm H. nigrovittatus. Arrows indicate the midline traces of fibrillar fusion. Scale bars indicate 100 μm (a, b), 10 μm (c), and 5 μm (d), respectivelyBack to article page