225 



the bark of a decaying stump, in company with numerous scarabseid 

 larvae. These larvae are very characteristic animals — under bark 

 when decay has loosened it from the sap-wood. The accompanying 

 figure (PI. LIX, fig. 4) shows the general appearance of this larva 

 and of an adult beetle. I found Dcndroidcs canadensis Latr. fairly 

 abundant at ^loomington, 111., July 25. Larvae belonging to this 

 family have been taken in the Brownfield woods, Urbana, 111., under 

 the bark of decaying trees. It is a representative animal species in 

 this habitat. 



See Moody (Psyche, Vol. 3, p. 76. 1880) for descriptions of 

 pyrochroid larvae. 



LEPIDOPTERA 

 PAPILIONIDiE 



Papilio philcnor Linn. Philenor Butterfly. (PI. LIX, fig. 5.) 



The caterpillar was found crawling upon the ground in the up- 

 land forest (Sta. IV, a) Aug. 16 (No. 69). Aug. 26 a larva (No. 

 166) which had attached itself to the stem of a prickly ash (Sta. 

 IV, h), was just entering upon the pupal stage, but had not yet cast 

 the larval skin. 



The larva feeds upon Dutchman's pipe, Aristolochia — a plant 

 which was not observed in the forest. 



Fapilio turnus Linn. Turnus Butterfly. 



The butterfly was observed on wing Aug. 16 in the open glades 

 of the upland forest (Sta. IV, a). 



The larva feeds upon Prunus and Liriodendron. 



Fapilio crcspJwntes Cram. Cresphontes Butterfly. 



The butterfly was observed in the open spaces of the upland 

 forest on wing Aug. 16. 



The larva feeds upon Zanthoxylnm, Ptelea, Dictamnus, Citrus, 

 etc. 



Papilio troilus Linn. Troilus Butterfly. 



The butterfly was taken, on wing, from the open slope of the 

 south ravine (Sta. IV, 5) Aug. 22 (No. 161); and in the upland 

 forest (Sta. IV, a) Aug. 26 (No. 163). 



The larva feeds upon sassafras and Laiirns. 



Nymphalid^ 



Polygonia interrogationis Fabr. 



The butterfly was taken in the open glade in the lowland forest 

 (Sta. IV, c) Aug. 20 (No. 117). 



The larva feeds upon Hiimulus, Ulmiis, and Urtica. 



