Studies of Peruvian Ptiliidae (Coleoptera) 5: Chaska nawi, a new genus and species of Acrotrichinae, Acrotrichini

FIGURES 1 – 10. Chaska nawi n. sp. 1. Habitus. 2. Antennomeres 8 - 11. showing arrangement of setae, and presence of sensillae on antennomere 10. 3. Aedeagus ventral view. 4 Aedeagus side view. 5. Underside of head and proventrum showing band of setae anterior to procoxae x 430. 6. Meso- and metaventra x 415. 7. Mesoventral collar showing crenulated posterior margin x 1040. 8. Pronotum showing rounded posterior angle, laterodorsal view x 1520. 9. Elytral epipleuron showing small humeral hook x 580. 10. Mentum and submentum showing chaetotaxy.

FIGURES 11 – 15. Chaska nawi n. sp. 11. Profemora and tarsus showing arrangement of setae, ventral view x 970. 12. Terminal abdominal ventrites x 410. 13. Metafemora and tarsus showing tarsal claws and arrangement of setae, ventral view x 1540. 14. Male ventrites VI & VII. 15. Male pygidium, dorsal view.