1905.] NATURAL SCIENCES OF PHILADELPHIA. 33 



young to huge females bearing large oothecse. All would immediately 

 scuttle away, making a rustling sound in the loose pebbles. When 

 seized these insects emit a vile-smelling oily fluid.- The females always 

 produced far more of this than the males. (H.) 



Periplaneta americana (Linnaeus). 



This species is represented by an adult female and four immature 

 individuals taken at Tampa, January 17, 1904. 

 Periplaneta australasise (Fabricius). 



Three adults from Miami, taken July 11 and 21 and August 23, 1903, 

 and three adults and seven nymphs taken at Tampa, January 17, 1904, 

 represent this species. 



All the specimens from Tampa were taken from under a tin sign on 

 an oak tree. (H.) 

 Pycnoscelus surinamensis (Linnsus). 



This tropical species is represented by a scries of sixty-four adult and 

 immature specimens. But one specimen was taken at Tampa, a. 

 nymph, on January 17, 1904, and it would appear from this that the 

 species is not so common that far north. Miami is represented by 

 specimens taken in January, February and during the summer, while 

 Key West individuals were all (fourteen in number) taken January 

 19 and 20, 1904. 



I have always found this species plentiful at ]\Iiami under stones 

 and rubbish. In Key West it was very abundant under coquina boul- 

 ders in the woods. I have noticed that they usually attempt to escape 

 by burrowing. (H.) 



Plectoptera poeyi (Saussure). 



This Cuban type is represented by a series of eight specimens taken 

 at Key West on January 19, 1904. These specimens are the first of 

 the species with exact data recorded from the United States. 



Family MANTIDJE. 

 Stagmomantis Carolina (Jolianuson). 



One immature female, beaten from scrub at Key West on January 

 20, 1904, belongs to this species. Several males were taken at Miami 

 on February 4, 1903, attracted to light. 



^ Gonatista grisea (Fabricius). 



Six immature individuals from Key West, January 19, 1904, and 

 one from Miami, February 6, 1904, are referable to this species. 



Key West. — The immature specimens of this species were abundant 

 upon the trunks of the gumbo-limbo trees. They ran about with 

 3 



