1914.] NATURAL SCIENCES OF PHILADELPHIA. 381 



Loggerhead Key, Dry Tortugas, Fla., July 8, 1912. Few seen in 

 houses. 



In company with Periplaneta americana this species was found 

 abundant at Pine Channel in a quarter-boat, while it was numerous 

 everywhere in the Hotel Jefferson at Key West. 



Periplaneta brunnea (Burm.)- 



Jew Fish, Fla., July 11, 1912; 1 9 . 

 Pycnoscelus surinamensis (Linn.). 



Homestead, Fla., July 10, 1912; 1 9. 



Jew Fish, Fla., July 11, 1912; 1 9. 



Key West, Fla., July 3-7, 1912; 4 9 , 4 n. 

 Blaberus atropos (Stoll). 



Key West, Fla., July 7, 1912; 15 cf , 28 9 , 10 n. 



Adults of this species were found common, nymphs few, between 

 old boards in a wood shed; many nymphs but few adults were also 

 found under boards on the ground near by. This great insect is 

 widely distributed and well known to the natives about Key West, 

 where it is found in wood piles, under boards and other refuse about 

 the town. The insects, when exposed, either remained motionless 

 or scuttled toward another place of concealment with no great speed. 

 The nymphs were usually found half buried in loose damp earth 

 under boards, where they remained motionless, looking much like 

 lumps of earth (with which they were usually much dusted) until 

 disturbed. Two very small nymphs were observed which had 

 recently moulted, these individuals were pure white and very soft. 



Holocompsa nitidula (Fabr.). 



1838. C[orydia] (Holocompsa) cyanea Burmeister, Handb. Ent., II, p. 492. 

 1838. C[orydia] (Holocompsa) collaris Burmeister, Handb. Ent., II, p. 492. 



Key West, Fla., July 4-7, 1912; 16 c^, 10 9 . 



These diminutive roaches were found in the folds of burlap bags 

 under the counter of a fruit store where other interesting roaches 

 were taken, and also with Blaberus atropos between old boards in a 

 wood shed, where nymphs were more numerous than adults. The 

 insects when disturbed ran about with great speed, but did not go 

 far to hide, often stopping in the first bits of refuse to which they 

 came. This is the first time that Holocompsa nitidula has been found 

 established within the United States; the only previous record of 

 the species being found in this country is that of Caudell,i- ^f g^ 

 single specimen found on cotton batting from the store room of the 



^"^Proc. Entom. Soc. Wash., VIII, p. 133 (1907). 



