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Checklist of - Entomological Society of Canada

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Gytininae<br />

G. liberus (Sr,Ly)<br />

brunnipznnis Aub6<br />

rugicolli.s I{ttby<br />

thoracic ^ts Haris<br />

G. manitober.sis Wallis<br />

G. occidentalis Horn<br />

G. perplexus Sharp<br />

elatus S tarp<br />

NT BC SK MB ON PQ<br />

_YKN,scABs^MBoNpe<br />

AK YK NT BC AB SK MB ON PQ<br />

NB<br />

NB<br />

NS<br />

NF<br />

Ns po ie Nr<br />

Genus THERMONECTUS Dejean<br />

T. basilaris (]{arris)<br />

-oN<br />

Tribe Cybistrini<br />

Genus CYBIfITER Curtis<br />

C. frmbriolatrrs (Say)<br />

crotchi \{ilke<br />

oliuieri (.)totc}'<br />

MB ON<br />

NS<br />

Family GYRINIDAE whirligig beetles<br />

R.E. Roughley<br />

Adult lyrinids form a group <strong>of</strong> beetles wonderfully<br />

adalrted for life on the water surface; 36<br />

species ocsur in <strong>Canada</strong> and Alaska in streams,<br />

rivers, pords, and lakes. They can be found quite<br />

far from s rore but are more common closer to the<br />

shore. Thc adults are readily distinguished by their<br />

highly mo

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