SUBFAMILY OEDIPODINAE 5) 
Arphia sulphurea in the spring, will often be found fully as well 
stocked with this species late in summer and fall and the general ap- 
pearance of the two insects being somewhat alike may lead the casual 
observer to think it one form continuous throughout the season. Like 
Hippiscus tuberculatus, this species appears to have a distinct liking 
for certain localities and may be taken at these spots year after year, 
while absent at others in the vicinity apparently equally favorable. 
This species has been taken at Red Wing, Mahtomedi, Mankato, St. 
Cloud, Duluth, Tower, Cass Lake, Bena, Blackduck, and Greenbush. 
For some unexplained reason we have not seen this species at any 
point in the Red River Valley. | 
Spharagemon collare Scudd. 
Spharagemon collare and the two following species are so closely 
related that in some forms specific separation is almost impossible, and 
is in any case a purely arbitrary matter. In its typical form this 
species is distinguishable in the field by the light “collar” which is 
really due to the much lighter coloration of the metazona and a por- 
tion of the lateral lobes. In these forms the face and the base of the 
posterior femora are usually also of a lighter color. In the western 
parts of the State and especially in the Red River Valley, this is an 
abundant species along roadsides and in dry places, even in open woods. 
At Crookston a certain sandy hillside along Red Lake River has yielded 
this form at any time during the summers of 1911 and 1912. The 
species matures in Minnesota about the middle of June and may be 
taken until late in the fall. Through the eastern and southern parts 
of the State this “collared” form appears less common than in the 
western part of Minnesota, but we have taken specimens near Duluth 
and Hinckley. The form without a distinct “collar,” most of which 
belongs to what has been classed as variety scudderi, is the common 
form in the eastern part of the State and has been taken at White 
Bear, Winona, and Albert Lea. [It is similar in habits and habitat to 
the typical form. 
Spharagemon wyomingianum Thom. 
Spharagemon wyomingianum is considerably smaller than the 
preceding although very similar, and while distinguishable by the 
characters given in the key, in typical forms, yet intergrades with it in 
most confusing fashion. Morse has classed it as a variety of S. collare, 
but, as previously stated, we prefer, for the purposes of this paper, to 
consider it as of specific rank. It is very similar in habits to the fol- 
lowing, which in some respects it appears to resemble even more closely 
5 
