138 

 posterior lateral angle; sternum shining, medial punctures 



fine, lateral microreticulation with few coarse punctures. 



First visible abdominal sternite with coxal lines 

 reaching 0.5 distance to posterior edge; broadly rounded 

 between metacoxae, nearly truncate; with coarse punctures 

 laterally, fine punctures medially. 



Male genitalia with median lobe short, moderately 

 arched, apically truncate, slightly constricted just before 

 tip; internal sac without noticeable sclerotized structures; 

 flagellum long and hair-like, length = 3.5 x median lobe 

 length (Fig. 96a); base of flagellum straight, sclerite at 

 base ring-shaped (Fig. 96b-d) (6 dissected). 



Female genitalia with spermathecal head oval to cone- 

 shaped; tail weakly swollen and curved (Fig. 96e) (5 

 dissected) . 



Presence of stridulatory files on occipital region of 

 head unknown (heads retracted) . Males lack, or have a few, 

 foveate punctures on prosternum in front of procoxae; 

 females with many foveate punctures covering the surface of 

 prosternum in front of procoxae. 



Variation . The lectotype of I. ephippiatus differs 

 from other specimens studied in lacking the scutellar spot 

 and having a black pronotum with pale anterior angles. 



The Bolivian specimen has the head dark red with an 

 orange basal spot and the central elytral spots free from 

 the sutural margin. In the other specimens the head is one 



