LAMIIDAE. 803 



LAMIIDAB. 



A, Tarsal claws simple. 



a. First joint of antennae with cicatrice at apex. 



I, Thorax with lateral spines. 



1, Antennae shorter than, or at most as long as body. 



Cicatrice of first joint of antennae large ; metasternum 

 slightly elongate ; femora about equal in thickness through- 

 out ; anterior legs of male not longer than the others. 



Lamia, Fab. 



2, Antennae much longer than body. 



Cicatrice of first joint of antennae large ; thorax with 

 two transverse furrows ; metasternum elongate ; femora 

 about equal in thickness throughout ; anterior legs of male 

 longer than the others. Monohammus, Serv. 



II, Thorax without lateral spines. 



Antennae much longer than body, ridge bounding cica- 

 trice of first joint interrupted ; eyes nearly divided ; thorax 

 without transverse furrows ; metasternum moderately elon- 

 gate ; femora gradually clubbed ; legs about equal. 



Mesosa, Serv. 



b. First joint of antennae without apical cicatrice. 

 Im Thorax with lateral spines or tubercles. 



1. Antennae not or scarcely fringed beneath ; inter- 

 mediate tibiae with furrow. 



A A. Antennae with a few short hairs beneath; 

 lateral tubercle of thorax placed immediately 

 behind middle. 



Antennae of male from three to five times, those of 

 female about twice as long as body ; elytra flattened on 

 disc, entire at apex ; last abdominal segment emarginate in 

 male, much prolonged in female, femora gradually clubbed. 



Acanthoeinics, Steph. 

 -B JB. Antennae without hairs ; lateral spine on 

 thorax placed near base. 

 Antennae much longer than body ; eyes more or less 

 approximated above ; elytra somewhat convex. 



Li op us, Serv. 



2, Antennae with rather long fringe beneath ; in- 

 termediate tibiae entire. 



