lM the chinch bug. 
Although living externally on their food plants, and notwithstand- 
ing the fad that the young may attack the bases or eveu the roots of 
some of these, the species is essentially an external feeder, and appears 
while thus engaged almost totally indifferent t<> possible attack- of 
natural enemies. When not feeding, however, there is at times a 
tendency to hide away under the sheaths of young corn or beneath 
clod- of earth or bunches of coarse stable manure, where this has 
been recently applied and left more or less exposed on the surface of 
the ground. The writer has noted this in cases where neither an 
uncomfortable temperature nor wet weather necessitated protection. 
A- has been shown in the description of the larval stages, there are 
four molt- between the egg and the adult state. Just how the niolt- 
ing larvae act we have never been able to determine: neither have we 
witnessed pupation, but a fully developed pupa that is ready to molt 
is easily distinguished by it- larger size and more tightly fitting skin, 
which i- almost shining white on the median ventral surface of the 
abdomen. It now hides itself away, seemingly preferring to gel 
under the -heaths of grasses or grains; hut if these are not con- 
venient it will crawl under loose clods, or even into crevices in the 
ground. While thus hidden away the pupa skin split- along the 
hack and the fully developed adult make- it- way ottt. leaving the 
empty -kin behind. These last are very frequently mistaken for 
dead chinch bugs, and, when moldy, the farmer i- very likely to sup- 
pose that they are bugs which have been killed by the fungus Sporo- 
trichum globulift rum, if this has been applied in the fields. 
On hi -i emerging from the pupa the adtdt is generally of a dull 
pink color, except the wings, which are white, exclusive of the veins: 
these being of the same pinkish hue as the body. In a short time 
these colors change to the normal ones of the species, but during the 
breeding season these newly developed adults may be observed crawl- 
ing about with the young of all stage- as well as the maturely colored 
adult-. 
If this development has been taking place in a wheat held and the 
grain i- harvested at this time, or if from any other cause the food 
supply becomes suddenly exhausted, all sizes of larvae with pupae and 
adult- will -tart oil' on foot to hunt for a fresh supply. Though 
many individuals may now have become fully developed, and. so far 
a- can be determined, possess wing- entirely fitted for active service, 
nevertheless they will crawl along a dusty road or aero-- freshly 
plowed fields in company with their less fortunate fellow.-, seemingly 
never for a moment supposing that they can -pan the intervening 
space by (light. The writer i- totally unable to account for this phe- 
nomenon in the specie- at thi- time, the disinclination to use the wings 
being so wholly unlike the habit- of B. dorice, a- shown by the careful 
and painstaking observations of Professor Sajo in Hungary. Again. 
