8 THE ROSE SLUG-CATERPILLAR. 
September 3, 1896 5 the insect was reported feeding on the leaves 
of Japan plum at Barnesville, Schuylkill County, Pa. 
In 1897 Dr. H. G. Dyar published a very full account of the life 
stages of this species and gave reference to its literature. 1 The larva 
appears to have been known as long ago as 1797, when Smith and 
Abbot figured it in connection with another species of moth to which 
it did not belong, namely, " Limacodes cippus." Under this name 
the species is mentioned by Harris. 2 The moth was not described 
until 1832. 3 
The recognized synonyms of Euclea indetermina are as follows: 
Callochroa viridis Reak., G. vernata Pack., and Parasa chlons Grote 
et auct. (non H.-S.). 
As remarked by Dr. Dyar, the larvae feed on various kinds of 
low-growing bushes. The list of food plants observed includes rose 
(Rosa spp.), wild cherry (Primus spp.), oak (Quercus spp.), chest- 
nut (Castanea dentata), hickory (Gary a spp.), paw paw (Asimina 
triloba), bayberry or wax myrtle (Myrica cerifera) , flowering dog- 
wood ( Gornus florida) , plum, apple, and pear. 
LIFE HISTORY. 
The various descriptions which have been furnished of this species 
agree in many easily observable particulars, but differ somewhat in 
detail. All writers seem to agree in stating that the larvae mature 
during September, but it will be noted that the specimens which were 
received from West Virginia had matured August 20. 
Eggs are deposited during July, in small groups slightly imbri- 
cating or overlapping, and hatch in about nine days. The larvae 
generally mature toward the middle of September, remaining on the 
underside of the leaves — something unusual considering their con- 
spicuous coloration. The larvae or caterpillars undergo eight dis- 
tinct stages, and occasionally nine, before transforming to pupae, 
and it has been observed that in stage I, which is passed rapidly, 
they take no nourishment. The species hibernates in its cocoon, and 
the moth has generally been observed to issue in July. 
As to the manner of forming the cocoon in confinement, all of the 
cocoons reared by the writer were attached to some object. Mr. M. V. 
Andrews, 4 who reared hundreds of this species in confinement, states 
that in all crises it either forms its cocoon adherent to the stem of the 
food plant or, occasionally, draws two leaves together for a shelter. 
There appears to be a somewhat general agreement, however, that 
in nature the cocoons are formed on the ground among loose rubbish. 
1 Journal N. Y. Ent. Soc, vol. 5, pp. 10-14, pi. 2, 1897. 
2 Harris. T. W., Insects Injurious to Vegetation, Flint ed\, 1862, p. 421. 
3 Boisduval, Cuvier's Animal Kingdom, pi. 103, fig. 8, 1832. 
4 Psyche, vol. 2, p. 271, 1879. 
