134 



GENUS CERATINOPTERA (oRTHOPTERA) 



Fig 4. Ceratin- 

 optera tropaia 

 new species. 



d", type. 

 Motzoro n go , 

 Mexico. Dorsal 

 outline. (X 5.) 



enth dorsal abdominal segment with a slight mesal de- 

 pression (this gland opening much more specialized in 

 both picta and nahua). Supra-anal plate moderately 

 transverse, triangularly produced with rounded apex. 

 Subgenital plate convex, with sides raised and margins 

 suddenly decUvent mesad, the stout styles there deeply 

 inserted, the sinistral style decidedly the smaller, the 

 remaining brief mesal portion of the plate produced 

 between these styles and moderately convex, so that 

 margins of lateral portions of plate, of styles and of 

 the produced mesal portion are all attingent (of the 

 same type as found in picta and nahua). Limbs short 

 and stout, armed as given in generic description, the larger 

 spines all very small and weakly developed. 



Measurements {in millimeters) 



Motzorongo, Mexico, type. 



1-4 

 7.5 



53 

 2.4 



fa 

 2.9 



1^ 

 2.6 



Coloration. General color dark shining chestnut brown; the 

 very narrow lateral margins of the pronotum, alone of the entire 

 dorsal surface, very slightly paler. Head shining chestnut 

 brown, with antennae and maxillary palpi of the same color. 

 Limbs suffused dresden brown. Median portion of ventral 

 surface of abdomen cinnamon-brown, merging gradually into the 

 general darker coloration laterad and distad. , 



The type is unique. 



" This measurement is approximated as the type has the abdomen some- 

 what crushed proximad. 



