226 
FOURTEENTH REPORT. 
CHECK LIST MICHIGAN LEPIDOPTERA. 
I. RHOPALOCERA (BUTTERFLIES ). 1 
BV W. W. NEWCOMB. 
One of the chief objects in presenting at this time a list of the butter- 
flies of Michigan is the hope that it will stimulate other observers 
to publish their records, particularly of the occurrence of species as 
yet unknown in ihe state, and thus increase our knowledge of the sub- 
ject. 
In 189.T. R. H. Wolcott published a list of the butterflies of Grand 
Rapids, Michigan, 2 in 1905, A. G. Ruthven a list from Isle Royale and 
the Porcupine Mountains, 3 and in 190S, C. C. Adams a list from Tsle 
Royale. 4 These are the only lists of Michigan butterflies which have 
been published. Wolcott mentioned 79 species (in reality 77 species), 
to which the two lists just named added 6 more. The present list con- 
tains the names of 18 additional species, all but one ( Theda cccrops ) 
collected or observed either in southeastern Michigan or in Dickinson 
County in the Fpper Peninsula. The total number of butterflies now 
known from Michigan is 101 not including varieties and forms. 1 have 
seen Michigan specimens of all forms except the following seven species : 
1 pat ura cl if ton, Xeoni/mpha mitchelii. Libytliea baehmani, Theda 
uiphon, Catopsilia cubvlc, Thyinelicus pows chick, and Xisoiiiades hi- 
ci Jins. 
There are a few other species which may possibly occur in the state, 
e. g., in the genus Theda. ineUims, henrici and especially polios , which 
is found in the Chicago district and in New York State, in the genus 
Lycaena, scudderii found in Ontario, New York State, etc., in the genus 
A nthocharis, genutia and Olympic, the latter of which is known from 
Lake County, Indiana, not far from Michigan, and in the genus Pamp- 
hila. hianna and micas and possibly liuron, phylaeas, fnsca and inctca. 
Of the recorded species, more definite records of Theda niphon and 
( 'at ops ilia cubnle, which were not made from captured specimens, would 
be highly desirable. There are a few species which are known in only 
one or two individuals, as Grapta satyrus, Libytliea hachmani, Theda 
recrops and Golias eaesonia. Further records of these and of the rarer 
or less known species as Phyeyodes ismeria, Cliionnobas jntta, Cale- 
phclis borealis, Theda strip osa and inis, Chrysophanus hello ides, d areas 
and epi.ranthe, Lycaena saepiolus , etc., should be made. 
All of the butterflies from Grand Rapids have been taken in south- 
eastern Michigan except eight. These are: Phyciodes ismeria, Apatura 
clyton, Xeonympha mitchelii, Libytliea bachniani, Theda niplum , 
i Prepared for the Michigan Geological and Biological Survey and published by permission of the 
' ^Robt^Hf 1 Wolcott: Butterflies of Grand Rapids, Mich., Can. Ent., 25, 98-107. 
3A G Ruthven: Spiders and Insects from the Porcupine Mountains and Isle Royale, Michigan, 
An Ecological Survey in Northern Michigan, 102-104. „„„„„„ 
••Chas C Adams: An Ecological Survey of Isle Royale, Lake Superior, 26/-2u. 
