Vol. XXXII. 



t 



^\lt ^nnatliitu 3|ntainoloflUt. 



LONDON, NOVEMBER, 1900. 



No. II 



CONTENTS. 



Gibson — Life-history of Euprepia Caja 321 



Dyar — New species of Anaphorinje 326 



Scudder — New or little known Californian 



Orthoptera 329 



Smith — Species of Acronycta in the British 



Museum 333 



Ball — Additions to Jassid Fauna 337 



Dyar — Change of preoccupied names 347 



Ehrmann — Variations in some common spe- 

 cies of Butterflies 348 



Ashmead — New genus in Aphelininae 349 



Snyder — Argynnids nf N. America 350 



Book Notice — Tutt's British Lepidoptera. . . . 351 

 Notes 328, 347, 352 



THE LIFE-HISTORY OF EUPREPTA CAJA, L., VAR. AMERI- 

 CANA, HARR. 



BY ARTHUR GIBSON, ASSISTANT, DIVISION OF ENTOMOLOGV, CENTRAL 



EXPERIMENTAL FARM, OTTAWA. 



On the evening of the 31st July, 1899, while collecting moths at the 

 electric light, close to the entrance to the Central Experimental Farm, I 

 was fortunate enough to secure a female oi Euprepia Caja, L.,var. Ameri- 

 cana, Harr. I enclosed her alive in a small box over night, and by the 

 morning she had laid nine eggs. From these eggs five larvte hatched, and 

 as I have succeeded in bringing two of these through all their stages, my 

 notes may be of interest to some of the readers of the Canadian Ento- 

 mologist. 



Egg. — Semi-ovoid, about .75 mm. in width, at widest part ; pale 

 yellowish, smooth, shiny. 



On the 9th Aug. one egg hatched, on the loth two more hatched, 

 and by the morning of the i ith the last two had emerged. Before hatching, 

 the black heads of the young larvfe are plainly noticeable, and the egg at 

 this time is a thick milky colour. 



Stage I. — Length at rest 2.25 mm., extended 3 mm. General colour 

 creamy white. Head .4 mm. wide, jet black, shiny, rather depressed at 

 apex. Face sparsely covered with minute hairs. On each segment is a 

 transverse row of black tubercles bearing long hairs, those from tubercles 

 on dorsum being black, while those from tubercles on sides are silvery. 

 On 2nd segment in centre of dorsum is one conspicuous black double 

 tubercle almost extending across the dorsum. Thoracic feet black, pro- 



