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A Guide to Bats in Ontario

A Guide to Bats in Ontario

As the only flying mammals in the world, bats can make an impressive claim to fame. Eight species of these nocturnal creatures live in Ontario. Agile and predatory, bats are capable of extremely sophisticated bio-sonar, also called echolocation, meaning that they emit pulses of sound and can detect echoes bouncing back from objects, including their prey.

Ontario Nature’s Year in Review

Ontario Nature’s Year in Review

As 2017 draws to a close, we’re reflecting on some of what we accomplished for nature this year. We could not have done it without you – our members, friends, followers, funders and sponsors. With your support, we continue to be Ontario’s leading organization protecting wild species and wild spaces.

Running crab spider

Running crab spider

Description: Although other species of Philodromus may be larger, this species is a fairly small spider.  Females are 2.7 to 4.5 millimetres long, males range from 2.5 to 3.5 millimetres.  The cephalothorax and abdomen are light-coloured in the middle, and both are darker (light reddish) along the edges.  The abdomen has a reddish stripe down […]

Seasons Winter 2001 Contents

Seasons Winter 2001 Contents

DEPARTMENTS 5 |  View from Locke House What’s wrong with being passionate? By Nancy Clark 6 | Earthwatch Pelee Island nature refuge; ephemeral wetlands; review of the planning act 15 |  Letters 17 | This Season  How to tag a gosling in its shell By Nancy Clark 44 | Insider Behind the scenes at FON 46 | Endpoint […]

Ground crab spider (Xysticus species)

Ground crab spider (Xysticus species)

Description: These are small to medium crab spiders. Female 4 to 9 millimetres, male 3 to 7 millimetres. This group of crab spiders ranges from grey to brown in colour, and includes several species in our area. Habitat: May be on the ground or up in plants, waiting patiently to ambush prey, but is less […]

Twobanded antmimic

Twobanded antmimic

Description: A medium-sized, slender, ant-like spider. Female 6.7 – 8.8 millimetres, male 5.7 – 6.8 millimetres. The body is overall dark brownish red with two white bands on the abdomen’s front half. Segments of legs further from body are lighter in colour. Habitat: Leaf litter and under rocks and wood in forested areas, has also been […]

Leaf curling sac spider

Leaf curling sac spider

Description: A medium-sized sac spider. Female from 5.5 – 8.7 millimetres, male from 4.4 to 7.4 millimetres. The cephalothorax is mid-brown, darker around the eyes. The chelicerae are very dark. The light brown abdomen has a dark central stripe tapering towards the back. Habitat: Wet meadows and along streams, especially in long grasses.     […]

Striped fishing spider

Striped fishing spider

Description: A very large fishing spider, similar to Dolomedes tenebrosus. Females range from 17 – 24 millimetres, males from 13 – 16 millimetres. The abdomen usually shows four “W-shaped” marks. Males have a broad whitish band around the entire cephalothorax, and a light band along the sides of the abdomen. Habitat: Usually found near or on water, […]

Splendid dwarf spider

Splendid dwarf spider

Description: A very small but spectacularly coloured spider. Females are 2.5 – 3.0 millimetres, males are 2.0 – 2.3 millimetres. The cephalothorax is bright reddish orange, contrasting with a shiny black abdomen. Habitat: Weaves tiny sheet webs near or on the ground, often among leaves, under rocks or in low vegetation, may be found higher […]

Hammock spider

Hammock spider

Description: Although a small spider, hammock spiders are large for this family. Females range from 5 – 7 millimetres, males from 4.5 – 6 millimetres. The cephalothorax is pale, with a dark mark like forceps starting in two lines near the eyes and joining towards the abdomen. The light-coloured abdomen has a central line resembling […]

Conical trashline orbweaver

Conical trashline orbweaver

Description: This is a small orbweaver. Females range from 5 to 7.5 millimetres, males from 3 to 4 millimetres. The cephalothorax is dark brown. The abdomen is white with various brown patterns, and has a distinctive lobe extending from its posterior which accounts for part of its common name. The legs are pale brown. The […]

Starbellied orbweaver

Starbellied orbweaver

Description: A medium-sized orbweaver. Females range from 7 – 15 millimetres, males from 5 – 8 millimetres. Between 10 and 12 points jut out from the abdomen’s edge, giving this spider a somewhat star-like shape and making it easy to identify in the field. Even its two lateral (side) eyes are set on points. There is […]

Bridge orbweaver

Bridge orbweaver

Description: A medium-sized orbweaver. Females range from 8 – 14 millimetres, males from 6 – 7 millimetres. The cephalothorax is dark with thin white lines along the edge created by hairs. The abdomen has a dark “folium” mark outlined by white. The legs are banded dark and light. Habitat: Most often found on human structures, such […]

Goldenrod crab spider

Goldenrod crab spider

Description: A fairly large crab spider. Females measure 5 – 10 millimetres, and males are smaller, at 3 – 4 millimetres. Although colour in this species varies, it is typically yellow or white with red streaks on each side of the abdomen, and with a reddish or orange patch around the eyes. This species closely […]

Slender crab spider

Slender crab spider

Description: A medium-sized spider. Female from 6 – 10 millimetres; male from 5 – 7 millimetres. Its body is overall light brown. As its name suggest, the abdomen is very slender (about three times as long as wide ). A dark middle stripe extends from its eye region to the tip of its abdomen where there […]

Parson spider

Parson spider

Description: A medium-sized spider. The female is 6 – 9 millimetres, the male 5 – 6 millimetres. The cephalothorax is dark reddish brown, usually with a broad light median stripe. The abdomen is dark grey with a white stripe on the back and an additional white spot at its posterior end. Habitat: Often in and […]

Yellow sac spider

Yellow sac spider

Description: A medium-sized spider. Females range from 5 – 10 millimetres, males from 4 – 8 millimetres. Overall the body is pale yellow and seems somewhat translucent. The chelicerae (below eyes) become black towards the fangs. The legs are black–tipped. Habitat: Most often encountered indoors, where it wanders walls and ceilings in search of prey; […]

Nursery web spider

Nursery web spider

Description: A large nursery web spider. Females range from 12.5 – 16.5 millimetres, males from 10 – 15 millimetres. Overall tan to orangeish colouring. Females have a brown stripe, just wider than their eye span that extends straight back on their cephalothorax and continues, with wavy borders, the length of the abdomen. This stripe may […]

Six-spotted fishing spider

Six-spotted fishing spider

Description: A very large spider. Females from 17 – 20 millimetres, males 9 – 13 millimetres. Females have a brownish cephalothorax. The brown abdomen shows three or four pairs of white spots. There are white bands on the sides of the cephalothorax and abdomen. The male is similar, but with broader white bands on the […]