![]() Gordius dimorphus larvae are similar to previous light microscope descriptions. One large spine is present on the posterior portion of the postseptum. On the surface of each projection, 3 pairs of aculeiforms spines are aligned and lean toward the proboscis opening. The proboscis is retractile, dorsoventrally flattened, with 1 pair of forceps-like projections on its distal-most portion. These terrestrial subsidies have been shown to lower predation of resident aquatic invertebrates (Sato et al., 2008 (Sato et al.,, 2011a (Sato et al., ,b, 2012. Three concentric rings with 6 spines each surround the proboscis. Larvae have a cylindrical body, annulated and divided into 2 sections, plus an anterior preseptum and a posterior postseptum. dimorphus (2 males and 1 female) were maintained under laboratory conditions until oviposition, which occurred within long strings commonly referred to as egg strings. Once reaching water the horsehair worm will eject itself from the host where it can. Scanning electron microscopy was used to analyze superficial features of Gordius dimorphus Poinar, 1991, larvae that might serve as generic or specific diagnostic characters. Horsehair worms develop as parasites in insects like grasshoppers. ![]()
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