30 IJ niter sily of Michigan 



it is not common, probably because of the lack of such shelter. 

 A few specimens were found under the bark of rotting logs 

 lying in grassy clearings around the Warren Woods. It was 

 also taken under the bark of dead pine stubs and fallen logs 

 in the small groves of white pine on the dune slopes ; freshly 

 laid egg-cases were found in this habitat among the loose 

 debris at the foot of a dead pine on July 7. Most of the 

 female specimens taken were captured in molasses-fusel oil 

 traps ; no males were taken in this way, however. Males were 

 taken at light on several occasions in the Warren Woods and 

 among the dunes. This constitutes the first published record 

 of the species from the State. 



Parcoblatta nhleriana (Saussure). 



Sawyer Dunes, July 12 to 29, 1920, 3 males, ij females. 



This species was found only in the oak dune woods, though 



it probably also occurs in the beech-maple forest. In the dune 

 woods it is very common, though no specimens were taken 

 except in molasses-fusel oil traps. 



Parcoblatta pennsylvanica (DeGeer). 



Warren Woods, June 30 and July 2, 1919, 2 males. 



Sawyer Dunes, July 7 to 29, 1920, 4 males, 25 females, i juvenile. 



The commonest cockroach of the region. It is everywhere 

 more numerous than P. virginica, but in the oak dune woods 

 is about equalled in numbers by P. uhleriana; it occurs in the 

 same places as those species. Most of the females were taken 

 in molasses traps, but very few males were captured in this 

 way ; the females of all three of the local species of the genus 

 are much more commonly found in the traps than are the 

 males. Specimens are frequently taken in houses in the coun- 

 try ; they were found on several occasions in the food cabinet 

 in the dune camp. Several males and one female were taken 



