<style face="normal" font="default" size="100%">A key to the British species of Simulidae (Diptera) in the larval, pupal and adult stages. (Scientific publication no. 24).</style>

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9<style face="normal" font="default" size="100%">A key to the British species of Simulidae (Diptera) in the larval, pupal and adult stages. (Scientific publication no. 24).</style><style face="normal" font="default" size="100%">A key to the British species of Simulidae (Diptera) in the larval, pupal and adult stages. (Scientific publication no. 24).</style>