The caddisflies, or order Trichoptera, are a group of insects with aquatic larvae and terrestrial adults. There are approximately 14,500 described species, most of which can be divided into the suborders Integripalpia and Annulipalpia on the basis of the adult mouthparts. Integripalpian larvae construct a portable casing to protect themselves as they move around looking for food, while Class: Insecta. Caddisflies undergo complete metamorphosis. Their life cycle includes four stages – egg, larva, pupa and adult. Most species produce one generation per year. Introduction: Caddisflies, inconspicuous brown to gray insects, are the ecologically diverse and important group of insects.
Life Cycle: Adult caddisflies are short lived and spend most of their time mating or laying eggs. Females lay eggs on the edge of the water or by females dipping their abdomen into the surface of the water. Caddisfly larvae develop through four stages (instars) over several months or even a year. Pupation is almost always aquatic. Adult caddisflies scarcely feed, although some take water or nectar. The larvae have a wide variety of feeding methods and diets, and may be either herbivores, scavengers or predators. Many feed on both living and dead plant material, some on algae and others pierce algal cells or aquatic plants, sucking out the cell contents.
Mar 28, 2016 · The order Trichoptera (caddisflies) is another likely descendant of the Mecopteran lineage. Adults are mostly nocturnal, weak-flying insects that are often attracted to lights. During the day, they hide in cool, moist environments such as the vegetation along river banks. Based on your answers to the questions, you have identified your insect as being in the order Trichoptera! Members of this order include: the caddisflies, which sometimes go by the name of sedgeflies, railflies or millers. Etymology: Trichoptera comes from the Greek words trichos, which means hair, and ptera, which means wings.This refers to the hair-covered wings present in these insects.
Trichoptera Fly Fishing Tips Male Mystacides sepulchralis (Black Dancer) Caddisfly Adult View 10 Pictures This was one of many of its species which were gathered in small, low-flying swarms of about a dozen insects near the alder trees in the afternoon on a small stream. Caddisfly, (order Trichoptera), any of a group of mothlike insects that are attracted to lights at night and live near lakes or rivers. Because fish feed on the immature, aquatic stages and trout take flying adults, caddisflies are often used as models for the artificial flies used in fishing.
Net-spinning caddisflies. 1. Hydropsychidae (Common netspinner): Top of all thoracic segments hardened; most abdominal segments have tufts of finely branched gills; anal prolegs terminate into a brush of hairs. Does not make cases but instead creates a retreat (net) made of a variety of materials held together by fine strands of silk.Note: Can be green in color and look similar to free-living. The diversity of adult Trichoptera was surveyed at Mae Tao and Mae Ku watersheds, northern Thailand during July 2011 to May 2012. The aim of the study was to determine the relationship between physicochemical parameters of water quality and adult Trichoptera for monitoring of water quality.Author: Taeng-On Prommi, Pongsak Laudee, Theeraphap Chareonviriyaphap.