23 



Basttarchia arthemis, Scudder, But. E. U. S. and Can., 1889, I, 



294; III, pis. 2, 19, 54, 74, 81, 83. 

 Limenitis proserpina, Edwards, But. N. A., I, 1868, 127, pi. 48. 



(Form proserpina.) 

 Id., Canadian Entomologist, March, 1891, 



49. 



Basilarchia proserpina, Scudder, But. E. U. S. and Can., 1889, I, 

 289 ; III, pis. 2, 19. (Form proserpina.) 



This handsome butterfly is a northern species which has been taken in 

 Lake County, by Worthington. It is found from June to September 

 frequenting the same localities as L. Ursula. The larvse feed upon wil- 

 low, aspen, basswood, and probably thorn. 



Mr. S. H. Scudder, in his But. E. U. S., p. 289, regards the form 

 proserpina as a hybrid between L. Ursula and L. arthemis. Mr. Edwards 

 in the Canadian Entomologist, loc. cit., controverts this view, and gives 

 in full his reasons for considering it a dimorphic form of arthemis. 



46. (239.) LIMENITIS DISIPPUS, Godt. The Disippus Butterfly. 



The Viceroy. 

 NympJialis disippus, Harris, Ins. Inj., 1862, 281, fig. 109. 



Morris, Lep. N. A., 1862, 65. 



Limenitis disippus, French, Sev. Kep. St. Ento. 111., 1878, 154. 

 Id., But. E. U. S., 1886. 210, figs. 59-62. 

 Edwards, But. N. A., II, 1884, 227. (De- 

 scrip, of larvae ) 



Blatchley, Ind. Farmer, 1887, April '23. 

 Limenitis misippus, Packard, Guide, 1883, 262, fig. 189. 

 Basilarchia archippus, Scudder, But. E. U. S. and Can , 1889, I, 



267; III, pis. 1, 11, 19, 64, 74, 83. 



A rather common species in all parts of the State, but by casual ob- 

 servers usually confounded with Danais archippus, Fab. , which it closely 

 resembles in color and markings, but from which it may be readily 

 known by the presence of a narrow, curved, black band across the 

 center of the hind wings. There are two broods each season, the larvse 

 of the second brood constructing from a leaf a tube-shaped retreat into 

 which they enter, head first, and pass the winter. Their dwellings are 

 formed by first fastening, by means of silk, a leaf to the twig upon which 

 it grew. Notches are then cut in the leaf and the edges are bent to- 

 gether and fastened by a silken thread. In the words of Edwards, loc. 

 cit. : " Some caterpillars cover themselves in a web, or bind two leaves 

 together loosely ; more conceal themselves under wood or stone, or in 

 the sod ; but here is one who has turned tailor, weaver and house 

 builder. It knows just what sort of leaf to choose for its purpose, takes 

 its measurement, cuts out the pattern on a system peculiar but effective ; 



