256 

 flagellum straight, sclerite at base horseshoe-shaped (Fig. 



12 6b-d) (6 dissected) . 



Female genitalia with spermathecal head kidney-shaped; 

 tail narrow, angled and coiled (Fig. 126e) (4 dissected) . 



Stridulatory files present, but weak, on occipital 

 region of male heads; absent on females. Females have a 

 few, weakly impressed and obscure foveate punctures on 

 prosternum in front of procoxae; males lack these punctures. 



Variation . The subhumeral and scutellar spots are 

 occasionally connected posteriorly forming a band-like spot. 



Specimens examined . A total of 39 specimens, 

 representing 11 collection records, was studied (see 

 Appendix C for specific data) . 



Distribution . Known only from Panama (Fig. 129) . 



Biology . The only biological data associated with 

 specimens is "canopy fogging experiment in Luehea seemanni, 

 Pyrethrin fog." The majority of specimens were collected in 

 this manner on at least 10 occasions. This species may have 

 arboreal habits. 



Ischyrus n. sp . 4 



Diagnosis . Unique in many characters including: pale 

 white antennal club, elongate scutellum, foveate strial 

 punctures at base of elytra, strial punctures lacking on 

 elytral disc, metallic blue dorsal sheen, and short ovoid 

 body shape. This is the only Ischyrus known to occur in the 

 Greater Antilles, specifically Cuba. 



