MORGAN HEBARD 371 



tudinal discoidal sectors of tegmina and spines of cephalic femora 

 of heavy type throughout. The discoidal vein ■ of the wings, 

 however, not only forks at slightly more than half the distance 

 to the apex, but beyond this point shows other distinct furca- 

 tions. The features of the male dorsal abdominal segments are 

 of a different general character, as are those of the supra-anal 

 and subgenital plates. The species are large and very broad 

 for the Ischnopterites, the tegmina have a strongly chitinous 

 appearance and the limbs are stout and, for the group, supplied 

 with heavy spines. These features give the species a distinctly 

 Epilamprine facies, a feature which, in part, led Griffi.ni to refer 

 his festae to Epilampra. 



Three tropical American species are before us. From careful 

 study of the literature it is clear that five species are members of 

 the present genus, four being referred in recent literature to the 

 genus Ischnoptera and one here described as new. 



The species of which we have no material are : — 



Xestoblatta hamata (Giglio-Tos) 



1898. I[schnoptera] hamata Giglio-Tos, Boll. Mus. Zool. Anat. comp. Univ. 

 Torino, xiii, No. 311, p. 4. [2 9, Santiago, Ecuador; 1 cf , Gualaquiza, Ecua- 

 dor.] 



Xestoblatta sancta (Giglio-Tos) 



1898. Jl-ichnoplcra] sancla Giglio-Tos, Ibid., p. .5. [5 9, t^an Jose, Ecua- 

 dor.] 



In sequence hamata would appear to follow festae. Until the 

 male sex is known, the nearest relationship of sancta can not be 

 accurately determined. 



The characters defining the present genus are given in part by 

 Giglio-Tos, in section I of his key before the descriptions of the 

 species listed above, the species there associated being all refer- 

 able to Xestoblatta. 



Saussure and Zehntner's treatment in the Biologia,^*^ of Saus- 

 sure's previously described Ischnoptera ignohilis, though brief 

 and unsatisfactory, leaves little doubt but that material of a 

 different species is included. The position of ignohilis is ap- 

 parently near Ischnoptera vilis Saussure, but the Biologia 

 material from Guatemala apparently represents a species of 



5«Biol. Ccnt.-Amer., Orth., I, p. ;37, (1894), 



TR.\NS. .\M. ENT. SOC, XLII. 



