Specimen 317 : Claire Elliot and Richard Piercy

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Location of collection: GGC Site 1

Date of collection: November 2012

Shannon-Wiener Index of Biodiversity: 2.82522

Photo: Trichoptera 317.jpg

Distinguishing morphological features of Order:

Trichoptera are moth-like in appearance, however, their four wings are membranous and feathery, not scaly. The forward wings are longer than the hind wings. The wings, especially the forward wings, are hairy. The wings are held roof-like over the back. The antennae are thread-like, usually as long or longer than the body. The mouthparts are chewing with a well developed labial and maxillary palps. The tarsi are five segmented, and the cerci are absent.

Sub-order ? Family ? After sequencing, genus and species ?

There are three sub-orders of Trichoptera: Annulipalpia, Integripalpia, and Spicipalpia. The different sub-orders are based on the different shapes of the maxillary palps. Annulpalpia have flexible palps with ring shapes on them. Integripalpia have non-ringed palps. Spicipalpia have pointed palps.

Geographical Distribution:

Trichoptera can be found worldwide as well as all across North America.

Life cycle:

The life cycle type for a Trichoptera is metamorphosis holometabolous which consists of several stages. They begin as an egg, and then hatch into a grub. It then pupates upon which it emerges as an adult. Adult Trichoptera can be found between April and November. The adult part of the life cycle tends to only last for 30 days. There can be one or more spawnings a year depending on the species and how long the maturation is.

Sexual dimorphism:

Trichoptera reproduce sexually. They only have the time span of their adult life (30 days) to mate and reproduce before death.

What it eats:Larval/nymphal stage Adult stage

The grubs are detritivores and some are predators. The adult Trichoptera may eat nectar.

Habitat: Larval/nymphal stage Adult stage

Trichoptera habitats consist of several different types of wetland areas such as marshes, lakes, and ponds. They are inactive during the day, but become active at dusk. Adult Trichoptera are attracted to artificial light. Grubs are aquatic; adults live on plants around water source.

Ecological Importance: Larval/nymphal stage Adult stage

Grubs are a food source for fish. Trichoptera are an indicator species of the health of a water source.

Economic/agricultural/human health importance: Larval/nymphal stage Adult stage

Trichoptera grubs are used as fishing bait. Trichoptera can be a hazard when the adults emerge flying in swarms.

PCR product: gel picture?

Sequence data:

Return to Trichoptera Spring 2013 page.

http://bugguide.net/node/view/5233 Order Trichoptera: Caddisflies

http://www.first-nature.com/insects/trichoptera/trichoptera.php Trichoptera Life Cycle

http://en.wikipedia.org/wiki/Caddisfly Caddisfly

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