MORGAN HEBARD 119 



OXYHALOINAE 



Chorisoneura translucida (Saussure) 



1864. Bl[atl(i] translucida Saussure, Rev. et Mag. de Zool., (2), xvi, p. 311. 

 [ [ 9 ], Mexico.] 



La Cumbre, Cordillera Occidental, Cauca, 6600 feet, V, 14, 

 1914, (H. S. Parish), 1 9 , [A. N. S. P.]. 



A considerable series of apparently the same species from Mex- 

 ico, Guatemala, Costa Rica and Panama is before us. More 

 material is, however, needed before we can state definitely 

 whether the somewhat marked differences observed are attrib- 

 utable in all cases to individual variation, or should be in some 

 used as a basis for geographic racial or even specific separation. 



We would note that subsequent records, from various portions 

 of South America, of the species originally described from Mexico, 

 are in the majority of cases found to represent actually distinct 

 species. The species which have so wide a range are almost all 

 ubiquitous and abundant forms. To this category the oresent 

 species may belong. 



The species is. apparently closely allied to C. mysteca Saussure.^" 

 From the original description that insect apparently differed only 

 in the tegmina having a fuscous humeral line, but later, when 

 more fully described,'*' found to differ also in having the tegmina 

 with veins of the "marginal" (scapular) field very numerous and 

 intercalated.' 



The specimen before us agrees fully with two females in the 

 Hebard Collection from San Rafael, Vera Cruz, Mexico. 



PERISPHAERINAE 



The Perisphaerinae are divided into a nvnnber of distinct di- 

 visions. First we would place Dasyposotna and its allies, showing 

 a strong Blattinid development; then Stenopilema and allied 

 genera which show a distinctive type. This type may be said 

 to exhibit an Epilamprinc or Panchlorine facies, the general 

 structure showing the Epilamprinc tendency the stronger. In 

 this group the three new American genera described below should 

 be placed first; Colapteroblatta indeed showing closest general sim- 

 ilarity to certain al)errant genera of the Epilamprinae, differing 

 very widely from these in features which assign it to the Peris- 

 phaerinae. The groups which come after are: that including 



"> Rev. et Mag. de Zool., (2), xiv, p. 167, (1862). 

 « Mem. I'Hist. Nat. Mex., iv, Blatt., p. 110, (1864). 



TRANS. AM. ENT. SOC. XLV. 



