34 PEOCEEDIXdS OF THE NATIONAL MUSEUM. vol.xxi. 



GROUPS ACCOHniNG TO GENITAL STRUCTURE. 



Lateral daspor a sinj^le, long, curved hook, arising abruptly from tho harpos. 



Group amcricaua. 

 Lateral clasper scoop shaped, with a i)rqjecting long upper angle; with or without 



a tiuger-lilce process from upper margin Group lobeliac. § 



Lateral clasper Hat, with a long projectingangle and a finger-lilve process from upper 



margin ( irou]) pcrstuisa. 



Lateral clasper beak lilco, witli or without a snpuiior process; arising separately 



from harpes Group loheliae. f^ 



Lateral clasper hook or l)eak like; arising from an oblique thickening at the middle 



of the harpes ( Jronp hanuimcUs. 



Lateral clasper a slender claw, hook or process above, and a sliort, stout, inferior 



process, somewhat like a short thumb and a loug curved forefinger. 



Group aiirkoma. 



(iROUrS ACCORDING TO LARVAL STRUCTURE. 



Warts small, few haired; secondary hair predominant Group americnnc. 



Warts small, secondary hair subordinate, always present at least slightlj'. 



Group loheliae. 



Warts small or single liaired; no secondary hairs \ ^^up^^osK 



o J J ^ Group hama 



Warts large, functional; no secondary hairs Group auricoma. 



asa. 

 amelis. 



Group AMERICANA. 



1. All the maculation distinct; ordinary si)ots well defined; median lines geminate, 



transverse anterior scalloped, transverse posterior denticulate; sec(md- 



aries yellowish in both sexes rnhricoma. 



Maculation more or less incomplete; median lines never both geminate, trans- 

 verse anterior line not scalloped, and transverse posterior line not so 

 strongly denticulate ; secondaries various 2. 



2. No longitudinal basal dash, line, or streak 3. 



A longitudinal black basal line, not divided at tip and not joined to the trans- 

 verse anterior Hue, which is absent or marked on costa only 4. 



Basal dash very short, not reaching to the transverse anterior line, which is 

 often indicated on the subraediau interspace by au angulated mark.. 7. 



Basal dash or streak extending to the transverse anterior line, or to the angulated 

 mark indicating it 8. 



3. Secondaries smoky in both sexes; median lines and ordinary spots fairly well 



marked; transverse posterior line geminate; size very large.. amw/t-aHa. 



Secondaries yellowish white in male, smoky yellow in female; primaries with 

 an ochreous tinge, best marked in male; dagger mark opposite anal 

 angle sharply defined and crossing the transverse posterior line. 



hastnlifcra. 



Secondaries grayish white in male, smoky gray in female; primaries bluish ash- 

 gray; dagger mark opposite anal angle is but vaguelj' indicated and 

 does not cross the transverse posterior line heaperida. 



Secondaries white in male, smoky gray in female; primaries ash-gray; dagger 

 mark opposite anal angle well marked and usually crosses transverse 

 posterior line dactylina. 



4. Primaries dark blue-gray, densely black powdered 5. 



Primaries paler ashy gray, black powdering more sparse 6. 



5. Ordinary spots and median lines usually wanting; veins slightly darker, giving 



a somewhat strigate apiiearance; transverse posterior line sometimes 

 well defined as a narrow pale band felina. 



