GENUS EUCHLOE 101 



One genus alone constitutes this little class, and the species lole 

 fills the genus. It stands alone, widely different from any other 

 butterfly. The figure illustrates it so well and completely that any 

 description would be superfluous. lole is more common in the 

 southern part of the West Coast than in the northern. It inhabits 

 all the western part of the United States west of the Mississippi 

 River. 



There are two broods of lole, one in ^Nlay and the other in July. 

 The latter brood are found only along the streams and in damp 

 places, and they are very fond of feeding on water at damp places 

 by the roadside. 



The larval food-plant is Erodium cicutarium, "alfilaria," 

 "filaree," or "Spanish needles." 



Genus EUCHLOE. 



In some technical points this genus is near genus Pieris, but the 

 butterflies differ widely from all Pierids in the marbling of the 

 wings on underside, which is so distinctive that it cannot be mis- 

 taken. The five members of Euchloe were formerly included in 

 Genus Anthocharis ; but on account of the absence of orange 

 apices, and of the different pattern of marbling of underside of 

 hind wing, it is proper to class these five under the genus name of 

 Euchloe. 



All the members of this genus are white-winged, with but slight 

 dark ornamentation, and all of them are slender-bodied and rather 

 delicate-looking butterflies, but nevertheless they are good flyers, 

 and hardy in all weathers. 



Sex-marks are the same as in preceding genera, namely, the 

 anal-claspers of the male; the female has no claspers, but the tip 

 of the abdomen is clad with grayish bristles or hairs. When dry 

 and shrunken it is sometimes difficult to discern the sex-marks, 

 and the student should without fail determine this point while the 

 specimens are fresh. A gentle nipping of the abdomen with the 

 tweezers while the specimen is fresh will be decisive. 



The food-plants of all the members of Euchloe are the Crucifers, 

 of which there are thirty genera in California; the most favored 

 of which are Arabis, Streptanthus, Sisymbrium ; Brassica. 



