66 



FAMILY II. BLATTID^E. THE COCKROACHES. 



pulivilli usually present; subgenital plate of female valvular; 

 length of body less than 9 mm. VII. CORYDIIN^E, p. 107. 

 ii. Ocelli of males large, the ocellar areas strongly defined; teg- 

 mina and wings absent in female (Fig. 49, F.) ; arolia and 

 pulvilli absent; subgenital plate of female simple; length of 

 body, 10 or more mm. VIII. POLYPHAGIN^E, p. 109. 



ee. Tegmina and wings wholly wanting; form elongate; color shining 

 blackish-brown, glabrous; arolia wanting; subgenital plate of fe- 

 male wanting (Fig. 43. D.) X. PANESTHIN.E, p. 113. 



Subfamily I. PSEUDOMOPINJE. 



This subfamily, to which 16 of the 33 species of roaches fouud 

 in our territory belong, is the equivalent of the Phyllodrominse of 

 most foreign authors, of the Blattime of Scudder (1897c, 12) and 

 iu great part of Caudell (1013, 601). Our eastern species vary 

 greatly in size and in the development of the female tegmina, but 

 agree in having the body glabrous; tegmina of a delicate struc- 

 ture; uluar vein of wings, in all the genera but Symploce, with 

 branches all complete to the apical margin; femora armed be- 

 neath; tarsal claws not toothed; arolia present. 



Fig. 32. A, Fore femora of Ischnoptera showing form of spination mentioned in a. of 

 generic key to Pseudomopinae ; B, tegmen of Sv fella; C, ventral view of subgential plate 

 of Periplaneta; D, pronotum of Sufclla; E, fore femur of Symploce, showing form of spin- 

 ation mentioned in aa. of key to Pseudomopinse; F, pronotum of Periplaneta brunnea Burm.; 

 G, pronotum of P. fnliginosa (Serv.) ; H. dorsal view of supra-anal plate and cerci of fe- 

 male of P. brunnea Burm. (After Hebard.) 



KEY TO EASTERN GENERA OF PSEUDOMOPIN.E. 



o. Lower front margin of fore femora armed on basal half with a row 



of stout spines, these abruptly succeeded on apical half by a row 



of much shorter and more delicate spinules (Fig. 32, A.). 



l>. Fourth tarsal joint only with a pulvillus (small pad) beneath. 



c. Tegmina abbreviated, subtruncate behind, covering less than half 



the abdomen in both sexes; pronotum buffy with a lengthwise 



undulating blackish-brown band each side of middle, which ex 



tends backward onto tegmina; styles of male very short, broad 



and fused with the margin of the subgenital plate; length of 



body less than 10 mm. (Fig. 33, A.) I. AGLAOPTERYX, p. 68. 



cc. Tegmina fully developed (in our species), extending beyond apex 



of abdomen in both sexes; pronotum not distinctively marked 



