no. 3649 LEPTOFERONIA — HACKER 9 



Head with frontal impressions recurved posteriorly, forming an angle 



of about 80° 8. fuchsi Casey 



17(16). Male with right paramere not sharply angulate in lateral view, narrowed 



laterally in about middle (fig. 12) . . . .12. trinitensis, new species 



Male with right paramere sharply angulate in lateral view, not abruptly 



narrowed laterally (fig. 13) 13. humilis Casey 



18(2). Hind trochanter blunt at tip 19 



Hind trochanter pointed at tip; body form subparallel 23 



19(18). Head not unusually large, ratio of head width to pronotum width less 



than 0.75 20 



Head unusually large, ratio of head width to pronotum width greater 



than 0.75 19. beyeri Van Dyke 



20(19). Tarsus with last article without setae on ventrolateral margins; frontal 



impression forming angle of about 45° 21 



Tarsus with last article with setae on ventrolateral margins; head with 

 frontal impressions forming angle of more than 45°. 



22. idahoae Csiki 

 21(20). Male with median lobe of aedeagus not concave on ventral surface, tip 



very long and spatulate (figs. 16, 17) 22 



Male with median lobe deeply concave on ventral surface, tip short 



(fig. 15) 15. hatchi, new species 



22(21). Male with right paramere of aedeagus long and crescent shaped (fig. 16) 



16. stapedius, new species 

 Male with right paramere shorter, not crescent shaped (fig. 17). 



17. stapedius yosemitensis, new subspecies 

 23(18). Eyes not especially small, head not unusually large, ratio of head width 



to pronotal width less than 0.80 24 



Eyes very small; head unusually large, ratio of head width to pronotal 



width greater than 0.80 (fig. 29) 18. caligans Horn 



24(23). Hind trochanter slightly pointed and never attenuate; inhabits Cali- 

 fornia coastal ranges 14. angustus Dejean 



Hind trochanter strongly pointed and often attenuate; inhabits Sierra 

 Nevada and Cascade ranges 23. inanis Horn 



The inopinus Group 



Figure 40 



This group includes inopinus, pumilus, and injernalis. They have 

 a ventricose body form and inhabit adjacent and slightly overlapping 

 areas. They share the following characteristics. 



Color of body. — Piceous. 



Head. — Eyes normally large and prominent. 



Pronotum. — Sides arcuate in middle, from arcuate to sinuate and 

 diverging in basal third; posterior pair of setiferous punctures for- 

 ward from hind angles; outer pair of longitudinal impressions absent; 

 base weakly bisinuate. 



Elytron. — Humerus somewhat rounded; humeral dentation small 

 or absent; scutellar stria and puncture present. 



Legs. — Hind trochanter blunt and about half the length of hind 

 femur; setae present on ventrolateral margins of last article of tarsus. 



