LARVAL FORMS OF COLEOPTERA 



five-jointed leg's witli a tarsungular last joint -j^^ mentum 

 either free or joined with maxiHary stipites; mala often sepa- 

 rated into a galea and a lacinia hidden below the galea. ) 



Chrysomeloidea (p. 63) and Disteniinae 



Hypopharyngeal bracon present. (Without jointed legs, ex- 

 cept in Brenthidae where they are vestigial ; mentum con- 

 nected completely with maxillary stipites, except in Bren- 

 thidae ; mala simple) Curculionoidea (p. 66) 



23. Legs vestigial, without pointed, tarsungular joint, or absent ; 

 maxillary mala divided into a lacinia terminating wdth a 

 thorn, and a galea ; body curved, fleshy, and with dorsal, 

 transverse plicae ; tenth abdominal segment small, in con- 

 tinuation of ninth Plaiystomoidea (p. 66) 



Legs normal, with strong tarsungulus; maxillary mala wdtli 

 only terminal indentation indicating a division into lacinia 

 and galea ; body elongate cylindrical, covered wdth tergal 

 shields; tenth abdominal segment well-developed, asperate, 

 and placed below base of large, chitinized ninth segment. 



Lymexyloidea~° (p. 67) 



^^ Legs are weak or vestigial without a tarsungular joint in the 

 older larvae of Bruchidae and absent in many of the leaf -mining 

 larvae. 



^° The systematic position of this series is uncertain. Its larval 

 form approaches in important characters the deviating larvae of the 

 two cucujoid families Oedemeridae and Calopidae, but also greatly 

 resembles the larval form of the ancient suborder Archostemata. 



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