SUBFAMILY I. PSEUDOMOPIN.K. 77 



fly actively away, while the females can but crawl, and that 

 rather sluggishly for a Blattid, toward the nearest new hiding 

 place. At a point four miles southeast of Moore Haven, Fla., a 

 half dozen or more adults and numerous nymphs were taken 

 March 1, 1018, from beneath weeds, grass and other debris washed 

 up on the beach of Lake Okeechobee. 



VII. PAKCOBLATTA Hebard, l!)17a, 70. (Gr., "frugal" + Blatta.) 



THE WOOD-ROACHES. 



Medium sized species, the male with body oblong, rather nar- 

 row, the female broader, more compact; pronotum feebly convex, 

 more strongly so on sides, that of male usually elliptical, more or 

 less narrowed in front, the disc usually with two oblique impres- 

 sions, its hind margin broadly rounded ; in the female usually sub- 

 orbicular, without discal impressions, the hind margin truncate; 

 tegmina membranous, more or less translucent, extending beyond 

 apex of abdomen in all males, not reaching apex in females except 

 in <-(iudelU, their discoidal sectors weakly radiating; wings hya- 

 line, their ulnar vein feebly curved and with one to six basal in- 

 complete branches; styles of male as described in generic key; 

 front femora armed beneath as in Ischnoptcra. 



Twelve species, all native to America, are recognized by Heb- 

 ard, nine of which occur in the Eastern United States. Until 

 Hebard issued his excellent Monograph (1917a), the species of 

 this genus, as far as synonymy goes, were a badly mixed lot. This 

 was due to the fact that the sexes differ so widely in appearance 

 that they have been described as different species, and often 

 placed in wholly different genera. Most of the original descrip- 

 tions were made by foreign entomologists, who never saw a speci- 

 men in the field, and for that reason knew nothing of the relation- 

 ship of the different individuals before them. However, the two 

 sexes are so seldom found mating, that even the field naturalists 

 cannot be certain as to their relationship. Previous to 1903, Saus- 

 sure, followed by Scudder, had described both sexes of Tctnnop- 

 tcri/.r as being short-winged, and the females of several species of 

 Parrol)l<itt<i had been described as distinct species and placed in 

 that genus. They had also stated in their ''Keys to genera of 

 Blattina"'" that in the genus Iftchnoptrrfi ( l j <nr-nl)lcitta of Hebard) 

 the "tegmina are completely developed or in the female rarely ab- 

 breviate." Tn my work of 1903 I first showed that the males of 

 Trni iioittcri/.r were macropterous, and first properly correlated 



