LARVAL POinrs OF COLEOPTERA 



G. Labriim snuill. nr indistinct and fused ^vitll frons and clypeus. 

 (Legs very long, slender, and without pulvillus; abdomen 

 swollen posteriorly, doubled back upon itself, and adapted 

 for carrying a case made either from the excrement of the 

 larva, or, in Lamprosoiiia,"^ from fine particles of wood glued 

 together with the excrement of the larva and with resin 



from the host tree) 7 



Labrum well-developed and free 9 



7. Tarsungulus short, strong!}" hamate, with a large heel. (An- 



tenna two-jointed, with conical sensory appendix (sj pi. 107 

 G) ; third joint represented only by a strong seta) 



C ampiowmatidae - Chlamydinae 

 (pi. 107 G, H) 

 Tarsungulus slender, somewhat curved and awl-shaped ; heel 

 absent or insignificant 8 



8. Antenna two-jointed, with a broad, pillbox-shaped sensory 



appendix (sj pi. 107 A, B) ; third joint represented only by 



a seta Camptosomaiklae-Clyirinae (pi. 



107 A-F) 

 Antenna three-jointed, with a conical sensory appendix ; third 

 joint seta-bearing and shorter than the appendix. (Frons 

 almost circular in outline and flat) 



C amptosomatidae - Cryptoceph a - 

 linae and Camptosomatidae- 

 Lamprosominae 



9. Maxillary palpus three- or four-jointed, excluding palpiger;*° 



eighth abdominal pair of spiracles present and laterally 

 placed; eighth abdominal segment not terminal, its hind 

 margin connected with the front margin of the ninth ab- 

 dominal segment 10 



Maxillary palpus two-jointed or less; eighth abdominal pair of 

 spiracles either present, but dorsally placed, or absent ; 

 eighth abdominal segment terminal with free hind margin 15 

 10. Tarsungulus long, slender, and without pulvillus; mandible 

 compressed, with two to three distal teeth ; epicranial suture 

 long ; ocelli absent. (Larva white ; abdominal segments with- 

 out dorsal scleromes and ventrally often with rounded, i)ro- 

 jecting lobes with manv stiff setae) 



Eumolpidae (pi. 108 A-M) 

 Tarsungulus of moderate length, curved, and usually with 

 puvillus (pon pi. 109 M) ; mandible palmate, with four to 

 five distal teeth; combination of a long epicranial suture and 



lack of ocelli not found 11 



"^ The larva of Lamprosoma hicolor Kirby and its pointed, hood- 

 shaped case are described by Carlos IMoreira (Ann. Soc. Ent. 

 France, vol. 82, 1913, pp. 743-7-1:5, one plate). 



*"' Very i-ai-ely two-jointed, as in SphdO'odfniui {\)\. 114 X). 



64 



