LARVAL FOKMH OF COLEOPTERA 



7. Pi-otliorax -with well-separated presternal plates and with a 



well-defined lanceolate median sternal plate 



Osiomaiidae-Tene'broidinae (pis. 

 93 A-Q, 94 A-I) 

 Protliorax without well-defined ])resternal plates and withont a 

 median lanceolate sternal plate 



Osfomatidae - Osfonidtiuae (pi. 

 93 D, 94 J-U) 



8. Fron.s posteriority Avith straight, transversal margin 



Cleridae-HydnocerirKie (pi. 95 

 B-H) 

 Frons posteriorly angulate 9 



9. Epicranial suture well developed 



Cleridae-Thaneyoclerinae (pi. 95 



^) 

 Epicranial suture not w'ell developed 10 



10. Antenna with second joint larger than basal .joint ; ninth ab- 



dominal segment conical, bifid. (One ocellus) 



Cleridae-Priocerinae (pi. 95 P) 



Antenna with second joint shorter than basal ; ninth abdominal 



segment otherwise 11 



11. All spiracles large and biforous; two ocelli present on each 



side. (Protliorax with separated presternal plates and a 



median sternal plate) Cleridae-Korynetinoe {Necrohia 



and Korynetes) 

 Anterior or all spiracles annuliform or pseudo-annulif orm ; 

 never with two ocelli present on each side. (Protliorax with 

 or without presternal plates and median sternal plate) 12 



12. Ocelli one {Monopliylla) or three {Cymatodera and Tillus) 



Cleridae-Tillinae (pi. 95 K, N, 

 R, X) 

 Ocelli absent, or four, or five 13 



13. Ocelli absent. (Body tumid; without ambulatorial ampullae) 



Clerid^ie-Orthopleurinae (pi. 95 

 S) 

 Ocelli four or five 14 



14. Two or more of abdominal segments with paired protruding 



dorsal ambulatorial ampullae ; cardo with narrow, band- 

 like basal sclerome 15 



gests bostrichoid relationship, but a similar division is also found 

 in some of the Cleroidea ; and the presence of long and converging 

 frontal sutures, a distinct gular area, paired urogomphi, and the 

 absence of paired oval lobes in front of anus speak strongly against 

 a taxonomic i)()sition within the Bostrichoidea and for the associa- 

 tion with the Cleroidea. 



56 



