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INTRODUCTION. 







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This Volume contains the enumeration of the rest of the species of the subfamily 

 Curculioninse (under which the Cossonids are here placed) and the whole of the 

 subfamily Calandrinse. The Appendix to the Curculioninse was required to include 

 such species as had been overlooked or wrongly placed in the general sorting of the 

 collections, or that had come to hand too late to be inserted in their proper places, 

 one holarctic group, the Gymnetrina, being thus added to the Mexican fauna. 







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The preceding Volume of this series, Coleoptera, IV. part 6, is devoted to the 

 families Brenthidse, Scolytidae, and Anthribidae, and the general sequence of the 

 arrangement of the Kliynchophora has thus been interrupted : species included in 

 the present Volume, " Coleoptera, IV. part 7," should of course follow those 

 enumerated in " Coleoptera, IV. part 5." 























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large 



number 





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The subfamily Calandrinse is represented within our limits by a 

 of species, some of them (Cactophagus, Phyllery thrums, Eucactophagus, Metamasius, 



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Bhodobcenus, &c.) being very conspicuous brilliantly-coloured insects. Sjphenophorus, 



sensu stricto, includes many destructive North- American species, but it is poorly 

 represented south of Mexico. It is probable that some of the Eastern genera of 



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this subfamily named by Chevrolat and others will prove to be inseparable from 

 Metamasius ; but no attempt has been here made to identify them. Calandra 



a, C. oryxes, &c. are carried about everywhere by commerce, and other 





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species are often introduced in imported plants. The larger exotic forms attack 

 palms, Cactaceae, Amaryllidese, Liliacese, Musaceae, maize, &c. 





biol. centr.-amer., Coleopt., Vol. IV. Pt. 7, October 1910. 



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