SUBFA M 1 1 A" II. X YCT01H )K I N .K. 



91 



Blattella ycrniunica and tiupclla supellectilium, and was first re- 

 corded by Rehn & Hebard (1014c, 378) as Ischnoptcra rufescens 

 (Beauv. I. It is possible that the Key West type was only an 

 adventive in our territory, it being the only Florida specimen 

 known. 



Subfamily II. NYCTOBORINJE. 



Large tropical species having the body velvety sericeous above; 

 eyes almost contiguous; tegmina leathery in structure, reaching 

 to or much beyond the apex of abdomen; apical half of lower 

 front margin of fore femora armed beneath with numerous small 

 spines of almost equal length; middle and hind femora armed 

 beneath on hind margin with four to six large spines; joints 1 to 

 4 of tarsi with pulvilli beneath; supra-anal plate of both sexes 

 triangularly produced; subgenital plate of female not compressed 

 and bivalved. 



I. NYCTOBORA Burmeister, 1838, 501. (Gr., "night" + "food.") 



Two species of this genus occur frequently in the eastern 

 United States, but only as adventives, being introduced with 

 bananas and other tropical fruits. As both have been recorded 

 from numerous localities, it is thought best to include them in 

 this work, though there is little chance of them ever becoming 

 established unless it be in extreme southern Florida. 



( ). NYCTOUORA XOCTIVAGA Rehn, 1902d, 3. Great Brown Roach. 



Male Dark chestnut brown, above thickly 

 clothed with minute yellowish prostrate hairs: 

 legs and under surface reddish-yellow, the 

 face, middle of abdomen, tibiae, tarsi and cerci 

 brownish-black. Antennse as long as the 

 body, filiform. Pronotum widest near base, 

 the sides thence regularly converging to the 

 rounded apex, the latter therefore much nar 

 rower than base, which is broadly rounded. 

 Tegmina extending much beyond apex of abdo- 

 men, their tips broadly rounded; anal field 

 large, almost semicircular. Cerci stout, some- 

 what flattened. Subgenital plate with right 

 margin longer and more oblique than left; left 

 Lugger.) style more slender and twice the length of 



right one. Female similar to male but broader. Subgenital plate with 



sides straight, feebly converging, apex sub-truncate, slightly upcurved. 



Length of body, $, 30 35; of pronotum, 10; of tegmina, 38 mm. Width 



of pronotum, , 13 14; of tegmina, 15 mm. 



Fig. 44. Nymph of Nycto- 

 bura noctivaga Rehn. (After 



