200 Zoologica: N. Y. Zoological Society [HI; 7 



The four families with subfamilies, into which the old 

 family Cucujidae may have to be divided according to larval 

 characters, are characterized briefly in the following conspectus : 



I. Mandible with molar structure and complicated hypo- 

 pharyngeal chitinizations. Ventral mouthparts retracted ; 

 cardo in some forms indistinct, fused with enlarged mar- 

 gin of epicranium. 



A. Maxillary mala (possibly lacinia) falciform, with 

 terminal uncus; externally to uncus a more or less 

 sharply defined, small setose region (possibly 

 reduced galea) . Maxillary articulating area distinct. 



1. Without cerci. Eighth abdominal segment nor- 

 mally developed; ninth small, ventrally rudi- 

 mentary ; tenth long, extending far behind ninth 

 segment; six ocelli Fam. Silvanidae 



a. Antenna with second joint large and clavate, 

 third joint very small, or wanting ; ocelli in 

 two distinct groups (Plate VIII, figs. 10, 12 

 and 18) Subfam. Silvaninae 



b. Antenna with three well developed joints; 

 ocelli not in two distinct groups (Plate X, fig. 

 34 - - Subfam. Telephaninae 



2. With cerci Fam. Cucujidae 



a. Tenth abdominal segment long, conical, ex- 

 tending far behind ninth abdominal seg- 

 ment Subfam. Hyliotinae 



b. Tenth abdominal segment short, wartshaped, 

 not extending behind ninth abdominal seg- 

 ment Subfam. Cucxijinae 



B. Maxillary mala (possibly galea) obtuse, with or 

 without well defined uncus, which when present is 

 laterally placed on inside of mala (possibly termi- 

 nating a reduced lacinia) Fam. Laemophloeidae 



