234 



mesocoxa deep, groove-like; sternum with medial punctures 



fine, coarse lateral punctures weakly impressed. 



First visible abdominal sternite with coxal lines 

 reaching 0.33 distance to posterior edge; broadly rounded 

 between metacoxae; coarse punctures evenly distributed, 

 often indistinct medially. 



Male genitalia with median lobe strongly arched, 

 apically truncate, slightly constricted just before tip; 

 internal sac with rough darkened patch near flagellar base; 

 flagellum hair-like, length = 1.7 x median lobe length (Fig. 

 118a); base of flagellum straight, sclerite at base claw- 

 shaped (Fig. 118b-d) (1 dissected). 



Female genitalia with spermathecal head kidney-shaped, 

 with weak top-knot; tail greatly swollen, as large as head 

 and kidney-shaped (Fig. 118e) (1 dissected). 



Presence of stridulatory files on occipital region of 

 head unknown (heads retracted) . Females have few foveate 

 punctures on prosternum immediately in front of procoxae; 

 males lack these punctures. 



Variation . No notable variation was observed in the 

 specimens studied. 



Type . The lectotype (here designated) of Ischyrus 

 tripunctatus Crotch label data: "/ [red circle on white 

 paper] Type/ Chontales, E.M.Janson [underside] 1929-289/ 

 Ischyrus tripunctatus Type Crotch/ [red] LECTOTYPE Ischyrus 

 tripunctatus Crotch des .P . E . Skelley 1993/" [NHML, studied]. 

 Type locality was stated to be "the vicinity of Santo 



