2/2 ANNIE H. PRITCHETT. 



tolocJiia, a poisonous plant of disagreeable taste. On October 

 30, March 27, March 30 (two), March 31, April I (three), April 

 4, April 16, April 23, May 4 (four), May 6 (two), butterflies 

 were introduced into the cage and quickly eaten by the lizards 

 with evident relish. On May 6 one of the specimens was badly 

 mutilated and the lizards were not induced to take it for more 

 than an hour. 

 Picris occidentalis Reakirt. October 29, April 20 (three). 



Picris protodicc Boisd-Lec. April 23, May I (four). These 

 forms, white with black markings, were readily eaten. 



Colias curythcmc Boisd. November 8 (two), March 3 I (two), 

 April 9, April 20 (seven), April 23 (five), May I (two). All 

 quickly eaten. 



Colias ariadnc Edwards. April 16 (two). 



Colias scnddcrc Reakirt. April 20, May I (two). These 

 species are of striking yellow or orange marked with black, a 

 typical warning combination, yet all were eaten eagerly. 



PyrrJiamca andria Scudder. This form is admirably protected 

 by having the under side of the wings an exact imitation of a 

 dead leaf. The wings are held folded closely together when the 

 butterfly is at rest, and it remains motionless in this position for 

 a great length of time. It is one of the most perfect instances 

 of protective resemblance that I have obtained. Specimens were 

 introduced November 14, April 22 (two, $ and 9) ar) d April 27. 

 On April 22 the butterflies were not noticed at first. Several 

 times they were offered to the lizards ; the male was taken in 

 about five minutes and the female ten minutes later. On April 

 27 the butterfly was seized by the wings several times, then 

 dropped again. It remained motionless unless I moved it and 

 the lizard would then seize it again. Finally it was abandoned, 

 but it had disappeared the next day and probably had been eaten 

 at last. 



Pyraineis atalanta Linn. November 29. This is a conspicuous 

 form, of black, brown, red and white. The lizards ate it eagerly. 



Pyraineis lutiitcra Fabr., a similar form but having large eye- 

 spots underneath the wings. It was eaten May I. 



Grapta inter rogationis Fabr. April i. This species also has 

 the under side of the wings in imitation of a dead leaf, and is 



