378 PROCEEDINGS OF THE ACADEMY OF [May, 



States at several localities, it is probably permanently and thoroughly 

 established only in southern Florida. »^,,,, 



BLATTID^. 

 Ischnoptera deropeltiformis (Brunner). 



Homestead, Fla., July 10, 1912; 1 cf, 2 9 , 2 n. (Nymphs 

 numerous.) 



Detroit, Fla., July 12, 1912; 1 9. 



Key West, Fla., July 7, 1912; 1 cf , 1 9 . 



At Homestead the species was found under boards lying on very 

 wet ground in the prairie-like everglades, while at Detroit and Key 

 West the specimens were taken in debris and leaf mold in heavy 

 jungle-like areas of trees, bushes, and vines. The species had not 

 been previously taken on the keys. 



Ischnoptera uhleriana fulvescens S. and Z. 



Homestead, Fla., July 10-12, 1912; 2 d", 1 9. 



The remains of the above recorded males and an additional speci- 

 men of the same sex were found entangled in the webs of spiders 

 at the railroad station, where they had probably been attracted by 

 the lights. 



Ischnoptera rufescens (Beauv.). 



(Ischnoptera blattoides of authors.) 



Key West, Fla., July 4, 1912; 1 cf. 



This individual, the first United States record of this circumtropical 

 species, was taken in a very greasy cupboard in the Hotel Jefferson 

 in company with swarms of Blattella germanica and a few specimens 

 of Supella supellectilium. The much paler coloration made this 

 specimen, the only one of the species seen, very conspicuous among 

 the many other darker roaches disclosed by the light of a flash-lamp. 



We follow Saussure in placing this species in the genus Ischnoptera. 

 It is the only species of that genus found within the United States 

 which has the ventro-cephalic margin of the cephalic femora armed 

 with a complete row of spines, the more distal shorter than the more 

 proximal. All of the other North American species of Ischnoptera 

 have this margin armed with 3 to 5 strong spines succeeded distad 

 by a close-set row of minute piliform spinulations. 



Blattella^ germanica (Linn.). 



Big Pine Key, Fla., July 6, 1913; 1 cf. 

 Key West, Fla., July 4, 1912; 4 9 . 



6 Vide Shelford, Entom. Monthly Mag., (2), Vol. XXII, p. 154, 155 (1911). 



