NVMrHAIJXAE: POLYCJOXIA INTKRROtlATIOXIS. 319 



Table of species, based on the iiiuigo. 



Larger species. Under surface of hiiul wings with a eontral silvery semicolon; basal quarter 

 of costal boi-der of under surface of fore wings conspicuously mottled with pale yellow and 

 brown interrogationis. 



Smaller species. Under surface of hind wings with a central silvery comma or bent bar; 

 basal fjuarter of costal border of fore wings beneath transversely streaked with brown and 

 pale, not strongly contrasted with the surrounding ])arts. 

 The silvery comma exijamled at tlie ends. 



Variegate<l with wood-brown on the outer third of the wings beneath, all the green 



confined to the region Iteyond the cell of the hind wings; median portion of the outer 



border of fore wings gently crenulated. 



Lower median basal spot on upper surface of fore wings small or obsolescent; 



hind wings with a border above at least twice as wide as that of fore wings.... 



comma. 



Lower median basal spot on upper surface of fore wings large and distinct; 



hind wings with a narrow border above similar to but fainter than that of the 



fore wings satyrus. 



Variegated with green on the outer third of the wings beneath; median portion of 



the outer border of the fore wings conspicuously crenulated faunas. 



The silvery comma tapering or ecjual at the ends. 



Hind wings beneath whitisli hoary just lieyond the middle, in vivid (contrast to 



the base ; upper limb of the comma blunt at tip gracilis. 



Hind wings beneath but little paler beyoml the middle than on the basal half; 

 upper limb of the comma pointed at the tip progne. 



GROUP I (interroi-ationis). 



Anteniiao usually with 41 joints (satyrus 38) ; subcostal dentation of margin of liind 

 Avings only moderately prominent. Eggs generally laid in chains of three or four on tlie 

 under surface of leaves. Markings of caterpillars generally formed of more or less 

 slender longitudinal lines on the sides of the body (satyrus as in the other group) ; 

 often forming rude nests in later life. Chrysalis with regnlarly conical ocellar tuber- 

 cles, and laterodorsal tubercles of fourth abdominal segment strikingly larger than 

 the others. 



Spkciks: interrogationis, comma, satyrus. 



POLYGONIA INTERROGATIONIS.— The violet tip. 



[The violet tip (Gosse); semicolon butterfly (Harris); semicolon vaness (Emmons).] 



Fapilio interroijationis Fabr., Suppl. ent. Fern., Butt. Me., 51-52 (1884) ;— Mayn., Butt. 



syst., 424 (1798). N. E., 11-12, pi. 2, flgs. 12, 12a [P."i. fabricii 



Cynthia interrogationis Fabr., 111. mag. figured] (1886). 



ins.,vi: 281 (1807). Vanessa {Grapta)intei-royatio7iisMo9cM., 



Vanessa interrogationis Harr., Hitchc. Stett. ent. zeit., xxxi: 116 (1870). 



Rep., 590 (1833); Ins. inj. veg., 3d ed., 298- Polijgonia interrogationis Scudd., Bull. 



300, fig. 124 [P. i. fabricii figured] 1862;— Buff. soc. nat. sc, ii : 2.51(1875). 



Saund., Can. ent., i : 76-77 (1869). Vanessa p. interrogationis God., Encycl. 



(irapta interrogationis Doubl.-Hew., Gen. m6th., ix: 819 (1819). 



diurn. Lep., i : 197 (1848) ;— Morr., Syn. Lep. Vanessa oaureum Ilarr., Ent. corr., 280- 



N. Amer., .53-.54 (1862) ;— Edw., Can. ent., x : 281 (1869). 

 71-74 (1878); xiv : 201-207 (1882) ; — French, 



Rep. ins. 111., vii : 1.51-1.52 (1878); Butt. east. Figured by Glover, 111. N. A. Lep,, pi. 1, fig. 



U. S., 182-185, fig. 51 (1880);— Middl., Rep. 11: pi. 21, fig. 1 ; pi. 106, fig. 25 (•■). ined. 

 ins. 111., x: 84 (1881) ;—Co(i., ibid. 104(1881); 



