1915] Andrews: Survey of Lake Butte Des Morts Boa 
203 
Ischnura verticalis Say. Females of this species are dimorphic. They 
may be black like the male, or orange. The orange colored females were 
the most common. Few males were seen. 
Lestes rectangularis Say. Found in August in large numbers. Few 
seen in July. 
Leucorhinia intacta Hagen. This species is distinguished from similar 
species by its white face. 
Leucorhinia glacialis Hagen. Very rare. Only two were seen during 
the entire period of observation. 
Enallagma signatum Charpentier. 
Enallagma pollutum. Charpentier. 
Enallagma ebrium Hagen. The Enallagmas were present during the 
first of July, but became very rare during the third and fourth weeks. In 
August none were seen. 
Orthoplera 
Nemobius fasciatus DeGeer. This small cricket was found only on 
the bog, and was the prey of Rana pipiens. 
Nemobius palustris Blatchley. This cricket was present in very large 
numbers during August. As many as half a dozen or more were counted 
in an area of one square foot. 
Conocephalus palustris Blatchley. This bright green insect was ob- 
served in large numbers all through July. Its coloring so closely resembled 
that of the reeds that it could hardly be distinguished from them. 
Xiphidium fasciatum, Blatchley. Two of these katydids were seen in 
the first week in August. 
Lepidoptera 
Euvanessa antiopa Kellog. The larva of this butterfly feeds on the 
marsh grass. Only a few were observed. 
Junonia coenia Kellog. The larvae of this butterfly were very numerous. 
On July 25 six of them were found feeding on the stems of Iris versicolor. 
Anosia plexippus Kellog. Generally seen flying about the swamp milk- 
weed. 
Basilarchia archippus Kellog. This butterfly was often seen flying about 
the bog during August. 
Pieris rapae immaculata Holland. The only individual of this species 
observed was found on July 8. 
VERTEBRATA 
Amphibia 
Rana pipiens Shreber. Very abundant. During the day it remained on 
shore where it captured many crickets. 
Bufo americanus LeConte. Only one was observed on the bog. Sev- 
eral others were seen on land near by. 
