FEEDING LIZARDS WITH COLORED INSECTS. 285 



4. Large beetles having hard elytra are seldom eaten. 



5. A butterfly with mutilated wings was not taken for an hour 

 and a half although another perfect specimen introduced at the 

 same time was eaten at once. 



6. If an insect (e. g., a beetle) falls upon its back the lizards 

 rarely ever seize it until it has gotten upon its feet again. 



7. The myriopod Julns was not eaten by any lizard. 



8. Although the combinations of black and yellow, black and 

 orange, or black and red are supposed to serve the purpose of 

 warning coloration, all insects possessing these colors were, at 

 one time or another, eaten, with the possible exception of Pan- 

 orpa nuptialis Gerst and a malodorous Lygcvid bug. 



9. Sceloporus floridanus is perhaps the most satisfactory lizard 

 for these experiments since it eats insects of all groups. 



10. Sceleporus seizes any part of the insect, but as a rule only 

 the wings of the butterflies and large moths. 



i i. All the lizards except Enincces seize the insect with the 

 mouth and swallow it a little at a time, never biting off pieces, 

 but keeping the insect entire. Eumcc cs swallows its prey thus 

 if small, but when the insect is large he shakes and pulls it to 

 pieces with his mouth and eats the separate pieces. 



1 2. Sceloporus is very active and is not easily tamed. 



13. Gerrhonotus is exceedingly slow in capturing its prey. It 

 creeps up stealthily, pauses when quite near, examines the insect 

 by protruding the tongue, rises as high as possible on the toes 

 of the fore limbs and then seizes the insect by the back with a 

 sudden spring. If the insect does not move it is frequently left 

 unmolested. This lizard soon becomes quite tame but does not 

 enjoy being handled. It was seen to drink water from the dish 

 by lapping with the tongue, but usually preferred taking it from 

 the pipette, allowing me to place a drop at a time on its out- 

 stretched tongue. 



14. Eumeces sometimes drinks by lapping with the tongue, 

 sometimes by sucking up the water. Sceloporus, Crotaphytus 

 and Phrynosoma drink by sucking the water into the mouth. At 

 first Sceloporus and Crotaphytus would drink only from the 

 pipette, but were gradually induced to follow that to the dish 

 and drink from the latter. 



