60 Key to Families of North American Insects. 



104. Some of the veins at the base of the fore wing greatly swollen; usually small 



butterflies, rarely rather large; frequently of brownish color with yellowish 

 eyespots or ringed marks (Cercyonis {=Safyrus), Coenonympha, Enodia y 



i^Debis), Cissia.) (PI. 10. fig. 218.) AGAPETID^ 



Veins not swollen at base of fore wing; large tropical species with very broad 

 wings, above with deep, rich colors, below with eye-spots and intricate lines; 

 tropical, in the United States only as accidental visitors. (Caligo.) 



brass6lid.e 



105. Hind wings with a cradle-like depression along the inner margin in which 



the abdomen rests; large species, usually with brilliant metallic blue olor; 



tropical. (Morpho.) \ MORPHOID-ffi; 



Hind wings without structure of this sort; usually moderate-sized species 

 without brilliant blue coloration; many common brightly colored butter- 

 flies. (Argynnis, Brenthis, Phyciodes, Polygonia {=Grapta), Euvanessa 

 (= Vanessa), Vanessa (= Pyrameis), Basilarchia (= Limenitis), Anaea.) (PI. 

 10, figs. 217, 236) NYMPHALID.© V 



106. Palpi very long, porrect, from one-fourth to one-half as long as the body 



and thickly hairy. (Hypatus.) LIBYTHEIDiB 



Palpi not elongated, of ordinary size 107 



107. Subcosta in hind wing giving off a spur at the base, the humeral vein. 



(Calephelis, Polystigma) (PI. 10. fig. 215) {RIODINID/E, ERYCINIDM) 



LEMONIID^ 

 Subcosta in hind wing without such a spur at the base; first branch of the 

 media almost always arising at or near the apex of the discal cell; no humeral 

 vein in hind wing; generally small, delicate species, the antennae ringed with 

 white; often brightly colored and with very slender, tail-like appendages 

 on the hind wings. (Thecla, Chrysophanus ["Coppers"], Lycaena ["Blues"]) 

 (PI. 10, fig. 214) (RURALID.E) LYC^NID^ 



108. All tarsal claws bifid; anterior tibiae without pads; hind wing with two well- 



developed anal veins; medium-sized or rather small butterflies with broad 

 wings; typically yellowish or white with blackish marginal markings. 

 (Pontia {=Pieris) [P. rapw. Cabbage butterfly], Eurymus {=CoUas) ["Yel- 

 lows"]. Eurema (= Terias.) PIERID^ 



Tarsal claws large, not toothed or bifid; anterior tibiae with pads; hind wing 

 with only one anal vein 109 



109. Radius in fore wing four-branched; discal cell in hind wing not connected 



to the anal vein by a crossvein; medium-sized butterflies with white ground- 

 color on wings, marked with dusky and usually with a red eye-spot on hind • 



wing; alpine species. (Pamassius.) PARNASSIID.ffi 



Radius in fore wing five-branched; anal crossvein present; hind wing usually 

 with a tail-like prolongation; ground-color of wings black; large, showy 

 butterflies with conspicuous, contrasting color pattern. Swallow-tail 

 butterflies. (Papilio, Laertias, Iphiclides) (PI. 9. fig. 210). 



PAPILIONIDiE ^ 



