254 NORTH AMERICAN BLATTIDAE 



Specimens Examined : fyS; 17 males. 16 females and 5 immature individuals. 



Big Pine Key, Fla.. \'II, 6, 191 2, (Rehn and Hebard; beaten from fringe of tall 

 bushes, on edge of mangrove swamp), 4 9, [Hebard Cln. and A. N. S. P.]. 



Key West. Fla.. I, 19, 1904, (Hebard; fairly common, beaten from Ilex cas sine) , 

 5 cf", 4 9, type, allotype, paratypes; HI, 15, 1910, (Hebard; rare, beaten from Ilex 

 cassine), l 9, paratype, i juv. d"; VH, 7, 1912, (Rehn and Hebard; fairly common, 

 beaten from bushes, particularly Ilex cassine. i immature running about at night 

 on leaves of Conocarpns erecta, two immature in leaf mould in key scrub), 12 d", 

 79,1 with ootheca, paratypes, 2 juv. d", 2 juv. 9, [Hebard Cln., A. N. S. P. and 

 r. S. N. M.]. 



Subfamily PANESTHINAE 



The following features are considered diagnostic. Large robust 

 insects with chitinous surface very heavy, the pronotal surface 

 variously strongly irregular. Eyes not prominent; ocelli, when 

 present in individuals with fully developed organs of flight, small, 

 with convex surfaces. Tegmina fully developed, reduced to 

 various degrees, or absent; when present, heavily chitinous, with 

 anal sulcus alone conspicuous. Wings, when fully developed, 

 exceptionally heavy in structure, with supplementary veins distad 

 between the veins and their branches; mediastine vein extending to 

 near apex of wing; costal veins subobsolete, their area very nar- 

 row; discoidal vein with numerous branches; ulnar vein with 

 numerous complete and some incomplete proximal branches; inter- 

 calation obsolete. ^^■- Sixth ventral abdominal segment greatly 

 enlarged in m.ales, entirely hiding subgenital plate ;^^* or with nar- 

 row distal portion of seventh segment exposed and chitinous, and 

 succeeding segments obsolete. ^^^ Limbs very heavy and stout. 

 Femora with ventral margins unarmed, except for a distal spine, 

 or two spines; excepting ventro-cephalic margin of cephalic femora, 

 which is arnicd, in some species, with one to four extremely heavy, 

 elongate, proximal spines, succeeded distad by a series of elongate, 

 chaetiform spines. Heavy pulvilli present on four proximal tarsal 

 joints. Tarsal claws large and heavy, without arolia. 



5^- In Panesihia and allies. 



"■■' This segment is called the seventh, by those authors who consider that the median 

 segment represents the first dorsal ahdoniinal segment. 

 •■'"^ In Cryptocercus. 



