fSYCHE. 



NOTES ON TWO CANADIAN BUTTERFLIES. 



BV NAPIER N. DURAND, NORTH TORONTO, CANADA. 



I. Eiiplioeadcs trail us L. It is 

 stated in Sciulder's " Everyday Butter- 

 flies " tliat this species is " double- 

 brooded tbroiiglioiit its range." I, 

 liovvcver, have not found this to be ordi- 

 narliv the case in this neighborhood 

 (Toronto). Until last summer (1S99) 

 I had for several years obtained consid- 

 eralile numbers of the larvae and reared 

 them to ciirysalis, but nevei' Init in one 

 season do I remember the ciirysalis to 

 liave given birth to the butterfly the 

 same year, and this was in the unusually 

 warm summer of 1S98 when three or 

 four females emerged, from the loth to 

 the i2lh of August, the other pupae in 

 this as in previous years failing to dis- 

 close their iimiates until the following 

 season. 



3. Engo)iia j-alhutn Bsd. & Lee. 

 On June 6th, 1899, about 15 voung 

 larvae of this species were found, 

 ranged side b}' side on a leaf of white 

 birch ; tbev were not accompanied by 

 a web and were all black in color. 

 Most of them were easily reared to ma- 

 turity, but were not criticallv observed 

 till the last moult. In their last stage 

 they were found to vary somewhat in 

 appearance. ]\fost of them were black 

 or almost black, e.vcept luiderneatb and 

 thereabouts where they were green ; 

 they were also sprinkled with white 

 atoms, and tawny in some places. Ap- 



proaching matmitv however they be- 

 came tinted with green, and when c|uite 

 mature were dark green, the white at- 

 oms also greenish. Others were green 

 throughout the whole stage, sprinkled 

 with greenish-white atoms, and with 

 the sub-dorsal region reddish-tawny ; 

 the whole larva becoming paler and 

 greener initil the reddish almost wholly 

 vanished and the larva became finally 

 ratiier pale green. 



I found the pupae also to varv con- 

 siderably. Some being gray, tinted 

 with green ; others pale greenish-gray ; 

 others darker gray, without, or almost 

 without green ; others pale green, some 

 of them salmon-tinted ; others dull green 

 and pinkish brown ; while others again 

 were wholly salmon-tinted and olive 

 green. In all of these the middle tuber- 

 cles were heavily and brilliantly sil- 

 vered, especially in the paler colored 

 pupae. One chrysalis found on June 

 3^d, suspended from a milk-weeil leaf 

 was pale green, almost white, and 

 slightly sprinkled with minute brown 

 atoms, mostly upon the wing-covers, 

 especially about their base. 



It was interesting to observe that the 

 green of the chrysalis, though paler, was 

 very similar to the soft green of the 

 underside of the milk-weed leaf, from 

 which it was suspended. 



