152 MISCELLANEOUS FOREST INSECTS. 



Family Lamiid^. 



Abdominal segments bearing fleshy tubercles Division I. 



Abdominal segments without fleshy tubercles Division II. 



DIVISION I. 



Dorsal aspect of ninth abdominal segment smooth Subdivision A. 



Dorsal aspect of ninth abdominal segment bearing one or more spines or chitinous 

 tubercles Subdivision B. 



Subdivision A. 



Sternum of prothorax not separated from sternellum by well-defined, deep suture. 



Section al. 

 Sternum of prothorax separated from sternellum by well-defined, deep suture. 



Section a2. 

 Section al. 



Pleural folds present on at least seven abdominal segments Subsection bl. 



Pleural folds not present on more than three abdominal segments Subsection b2. 



Subsection bl. 



Anal segment bearing a group of small spines on ventral aspect Ptychodes. 



Anal segment without spines Monohammus. 



Subsection b2. 



Gular suture or sutures present Series cl. 



Gular suture or sutures lacking Series c2. 



Series cl. 



Posterior half of protergum alutaceous Leptostylus. 



Posterior half of protergum smooth and shining Dorcaschema. 



Posterior half of protergum rugose and shining Acanthoderes. 



Series c2. 



Epipleural sutures of prothorax deep at posterior end and extending almost entire 

 length of segment. Anterior half of protergum sparsely but evenly clothed with 

 long erect hairs Liopus. 



Epipleural sutures of prothorax extending only about half the length of segment. 

 Anterior half of protergum with only a few straggling hairs Eyperplatys. 



Section a2. 



Epistoma with many parallel longitudinal carinae Oncideres. 



Epistoma without parallel longitudinal carinse Goes. 



Subdivision B. 



Ninth abdominal segment bearing a single, slender, strongly chitinized spine pointing 

 dorsally Lepturges. 



Ninth abdominal segment bearing a more or less fleshy spine pointing posteriorly. 



Plectrura. 



Ninth abdominal segment bearing two very small, closely placed, chitinized points 

 sometimes apparently merged into one Synaphoeta 



DIVISION II. 



All abdominal segments bearing pleural folds Saperda. 



Pleural folds borne only on posterior three abdominal segments Subdivision C. 



