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Psyche 
[June 
length of the rostrum as compared with one and one-half 
times in nivoriundus . 
Explanation of Plates. 
Plate 10. 
Fig. 1. Panorpa bifida, n. sp., $ genital bulb of holotype. 
Fig. 2. Panorpa flexa, n. sp., $ genital bulb of holotype. 
Fig. 3. Panorpa bifida, n. sp., internal skeleton of $ allotype. 
Fig. 4. Panorpa speciosa Carp., internal skeleton of $ allotype. 
Fig. 5. Panorpa insolens, n. sp., internal skeleton of $ holotype. 
Fig. 6. Panorpa insolens, n. sp., fore wing of holotype. 
Plate 11. 
Fig. 7. Boreus nix, n. sp., hypandrium of $ holotype. 
Fig. 8. Boreus elegans, n. sp., wings of $ holotype. 
Fig. 9. Boreus reductus Carp., hypandrium of $ . 
Fig. 10. Boreus pilosus, n. sp., hypandrium of $ holotype. 
Fig. 11. Boreus isolatus, n. sp., hypandrium of $ holotype. 
Fig. 12. Boreus elegans, n. sp., hypandrium of $ holotype. 
Fig. 13. Boreus calif omicus Packard, hypandrium of $ . 
Fig. 14. Boreue borealis Banks, hypandrium of $ cotype. 
Fig. 15. Boreus unicolor Hine, hypandrium of $ . 
