LAMELLICORNIA. 



meeting in the middle line of the hodj. The front coxal cavities 

 are completely closed and the prosteruum sometimes forms an 

 elevated process behind the coxae. The mesosternum in many of 

 the Melolonthixa, Eutelin.i: and CETONiiNiE is produced 



ClJj.4. 



Fig. 4. — Aceraius rcctidcns (Family Passalid.e) and enlarged details : — //., head ; 

 pro., prothorax; ^JrH., pronotum ; ^-'s^., prosternum ; rues., mesotborax ; 

 mst., uiesostermuu ; mcp., uiesotlioracic episternuin ; mp., mesothoraeic 

 epimeron ; iiuf., nietalborax ; mf.st., metasterninn ; .s., seutellum ; 

 «&., abdominal segment; /./., fore leg; m.L, middle leg; k.I., bind leg; 

 coa\, coxa; tr., trochanter; fern., femur; tih., tibia; tar., tarsus; 

 ant., antenna; sc, scape; cL, club; m., mandible; mx., maxilla; 

 ?/«/)., maxillary palpus ; ^;-.,labrum; Z., labium ; ///e., mentum ; /2y.,ligula; 

 Ip., labial palpus. 



for\\ard as a strong spine extending from the intermediate coxae to 

 the front ones, and the metasternum sometimes contributes part 

 of this spine, the line of division between it and the mesosternum 

 beins: faint or obliterated altogether. 



