Genus Anosia 



the Philippines. Moving eastward on the lines of travel, it 

 has established a more or less precarious foothold for itself in 

 southern England, as many as two or three dozen of these butter- 

 flies having been taken in a single year in the United Kingdom. It 

 is well established at the Cape Verde Islands, and in a short time 

 we may expect to hear of it as having taken possession of the 

 continent of Africa, in which the family of plants upon which the 

 caterpillars feed is well represented. 



(2) Anosia berenice, Cramer, Plate VII, Fig. 2, $ (The 

 Queen). 



This butterfly is smaller than the Monarch, and the ground- 

 color of the wings is a livid brown. The markings are some- 

 what similar to those in A. plexippus, but the black borders of 

 the hind wings are relatively wider, and the light spots on the 

 apex of the fore wings are whiter and differently located, as 

 may be learned from the figures given in Plate VII. 



There is a variety of this species, which has been called Anosia 

 strigosa by H. W. Bates (Plate VII, Fig. 3, S ), which differs only 

 in that on the upper surface of the hind wings the veins as far as 

 the black outer margin are narrowly edged with grayish-white, 

 giving them a streaked appearance. This insect is found in 

 Texas, Arizona, and southern New Mexico. 



All of the Euplceinse are " protected " insects, being by nature 

 provided with secretions which are distasteful to birds and pre- 

 daceous insects. These acrid secretions are probably due to the 

 character of the plants upon which the caterpillars feed, for many 

 of them eat plants which are more or less rank, and some of them 

 even poisonous to the higher orders of animals. Enjoying on 

 this account immunity from attack, they have all, in the process 

 of time, been mimicked by species in other genera which have 

 not the same immunity. This protective resemblance is well il- 

 lustrated in Plate VII. The three upper figures in the plate repre- 

 sent, as we have seen, species of the genus Anosia; the two 

 lower figures represent two species of the genus Basilarchia. 

 Fig. 4 is the male of B. disippus, a very common species in the 

 northern United States, which mimicks the Monarch. Fig. 5 

 represents the same sex of B. bulstii, a species which is found 

 in Arizona, and there flies in company with the Queen, and its 

 variety, A. strigosa, which latter it more nearly resembles. 



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