273 



Specimens examined . Only 3 specimens were studied, 



representing 2 collection records. Label data: Mexico, 

 Jalisco, UNAM Biol. Sta. Chamela, 9-VIII-1982, C. W. & L. 

 O'Brien, & G. Wibmer, 200'elev., at night [2, PESC] ; same 

 data, at light [1, PESC] . 



Distribution . Known only from Mexico (Fig. 136) . 



Ischyrus n. sp . 9. 



Diagnosis . Recognized by having the pronotum almost 

 entirely black (except for anterior angles) , elytral free 

 basal spots forming a straight transverse line, and central 

 elytral band not extended beyond apical third of elytra. 



Description . Length: 4.2-5.7 mm; Width: 2.6-3.4 mm. 

 Body elongate-ovoid, widest at basal quarter of elytra; 

 weakly microreticulate dorsally, shining; strongly 

 microreticulate ventrally, dull; black with paler markings; 

 elytra yellow-orange with black markings (Fig. 59) . 



Head black, epistome often yellow. Pronotum black, 

 often with orange anterior angles. Scutellum black. Each 

 elytron with orange epipleural fold; free humeral spot; 

 scutellar spot divided, free part size = humeral spot, other 

 part broadly connected to base and suture; scutellar spots 

 and humeral spots in a transverse line; suture margined in 

 black; central band restricted to central third of elytra, 

 not extending to apex, laterally narrowed and zig-zagged, 

 not reaching lateral margin. Venter and legs black; tarsi 

 and palpi tan. 



