Brief guide to the commoner butterflies of the northern United States and Canada; being an introduction to a knowledge of their life-histories . onspicuous. Concealed in a co-coon (Family Skippers.) B1. Tongue-case not free, not extending beyond the wings (Tribe Larger Skippers.) c1. Abdomen exclusive of tail-piece no longer than therest of the Thoracic spiracle with no posterior elevated flaring lip 49. Epargyreus. d\ Thoracic spiracle with a posterior elevated flar-ing lip 50. Thorybes. c\ Abdomen exclusive of tail-piece longer than therest of the Hinder lip of thoracic spi
Brief guide to the commoner butterflies of the northern United States and Canada; being an introduction to a knowledge of their life-histories . onspicuous. Concealed in a co-coon (Family Skippers.) B1. Tongue-case not free, not extending beyond the wings (Tribe Larger Skippers.) c1. Abdomen exclusive of tail-piece no longer than therest of the Thoracic spiracle with no posterior elevated flaring lip 49. Epargyreus. d\ Thoracic spiracle with a posterior elevated flar-ing lip 50. Thorybes. c\ Abdomen exclusive of tail-piece longer than therest of the Hinder lip of thoracic spiracle scarcely raised, not flaring 51. Thanaos. d2. Hinder lip of thoracic spiracle much elevated,flaring, The hinder equal part of tail-piece, seen fromabove, scarcely longer than broad. 52. \ The hinder equal part of tail-piece, seen fromabove, twice as long as broad. 53. \ Tongue-case free at tip, extending beyond, some-times much beyond, the wings. (Tribe Smaller Skippers.) [The genera of Smaller Skippers are too little known toseparate them by their chrysalids. ] NOMENCLATURE OF THE PARTS OF THE Neuration of Anosia plexippus. cm .. .. .costal margin. pc (0) .. ... precostal vein. ..outer margin. c ( .. costal vein. ...inner margin. sc (2)... ...subcostal vein. dc ... discoidal cell. msm (3)... (4)... ...median ..submedian vein ...anal angle. i (5)... .. internal vein. 60 NOMENCLATURE OF HIE PARTS OF THE WING. 61 The veins may for conciseness, as in our Key to theGroups, be numbered from above downward from 0 to 5as in their explanation above, and their branches may befurther indicated by adding to the number one which shalldesignate whether it is the first branch, second branch, etc.,and also whether it is thrown off from the upper or underedge. Thus the branches striking the margin of the forewing in the above figure, beginning above, would have thisconsecutive designation: 1, 21, 22, 23, 24, 2, 2l9 22,
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